Judge Roberta S. Hayashi: Professional Background and Legal Expertise

CA Bar #: 105141 (December 1982)

Appointed By: Gov. Edmund G. Brown, Jr.

Biography

The Hon. Roberta S. Hayashi is a judge for the Superior Court of Santa Clara County in California. She was appointed to the bench by former governor Jerry Brown on December 12, 2014, filling a vacancy created by the retirement of the Hon. Rene Navarro.


Hayashi earned an A.B. from Stanford University in 1979. She then completed a J.D. from the University of California, Davis School of Law in 1982.


She began her legal career with Berliner Cohen in 1982. She first worked as an associate, eventually rising to partner in 1990. Then, in 2001, she became chair of its employment law practice. During her twenty-five year tenure with Berliner Cohen, Hayashi represented Silicon Valley employers in employment and business litigation. She primarily handled wrongful termination, discrimination, and misappropriation of trade secrets and proprietary information actions.


Hayashi has also served as a partner for Skjerven Morrill from 2001 to 2003 as well as Pillsbury, Winthrop, Shaw, Pittman from 2003 to 2005.


She has served as president of the Santa Clara County Bar Association, and she has chaired its Professional Responsibility Rules Revision Task Force. She has also been president of the Law Foundation of Silicon Valley. She has served on the Board of Directors of Hospice of the Valley, the San Jose Sports Authority, and the San Jose Sports Hall of Fame.


Hayashi is a recipient of the Salsman Award (2007) as well as the Professional Lawyer of the Year Award (2009) from the Santa Clara County Bar Association.


Hayashi was born in San Jose, California. Her pastimes include skiing, hiking, and quilt-making.


She is registered as a Democrat.

Recent Cases by Hon. Roberta S. Hayashi

On January 27, 2025 a wrongful termination unlimited(36) case was filed in the jurisdiction of Santa Clara County. Judge Roberta S. Hayashi presiding.

11 Files
Filed

Jan 27, 2025

Status

Active

Judge

Hon. Roberta S. Hayashi Trellis Spinner 👉 Discover key insights by exploring more analytics for Roberta S. Hayashi

Court

Superior

County

Santa Clara County, CA

Court Category

Wrongful Termination Unlimited(36)

Practice Area

Labor and Employment

Matter Type

Wrongful Termination

Case Last Refreshed

Mar 05, 2025

On January 27, 2023 an other pi/pd/wd unlimited (23) case was filed in the jurisdiction of Santa Clara County. Judge Roberta S. Hayashi presiding.

28 Files
Filed

Jan 27, 2023

Status

Active

Judge

Hon. Roberta S. Hayashi Trellis Spinner 👉 Discover key insights by exploring more analytics for Roberta S. Hayashi

Court

Superior

County

Santa Clara County, CA

Court Category

Other PI/PD/WD Unlimited (23)

Practice Area

Torts

Matter Type

General Torts

Case Last Refreshed

Nov 27, 2024

On January 27, 2023 a fraud unlimited (16) case was filed in the jurisdiction of Santa Clara County. Judge Roberta S. Hayashi presiding.

33 Files
Filed

Jan 27, 2023

Status

Active

Judge

Hon. Roberta S. Hayashi Trellis Spinner 👉 Discover key insights by exploring more analytics for Roberta S. Hayashi

Court

Superior

County

Santa Clara County, CA

Court Category

Fraud Unlimited (16)

Practice Area

Torts

Matter Type

Economic Torts

Case Last Refreshed

Nov 27, 2024

On January 17, 2023 a breach of contract/warranty unlimited(06) case was filed in the jurisdiction of Santa Clara County. Judge Roberta S. Hayashi presiding.

35 Files
Filed

Jan 17, 2023

Status

Other

Judge

Hon. Roberta S. Hayashi Trellis Spinner 👉 Discover key insights by exploring more analytics for Roberta S. Hayashi

Court

Superior

County

Santa Clara County, CA

Court Category

Breach of Contract/Warranty Unlimited(06)

Practice Area

Commercial

Matter Type

Breach of Contract

Case Last Refreshed

Dec 07, 2024

On January 15, 2023 an auto unlimited (22) case was filed in the jurisdiction of Santa Clara County. Judge Roberta S. Hayashi presiding.

13 Files
Filed

Jan 15, 2023

Status

Dismissal

Judge

Hon. Roberta S. Hayashi Trellis Spinner 👉 Discover key insights by exploring more analytics for Roberta S. Hayashi

Court

Superior

County

Santa Clara County, CA

Court Category

Auto Unlimited (22)

Practice Area

Torts

Matter Type

Automobile

Case Last Refreshed

Nov 27, 2024

On January 12, 2023 an auto unlimited (22) case was filed in the jurisdiction of Santa Clara County. Judge Roberta S. Hayashi presiding.

24 Files
Filed

Jan 12, 2023

Status

Dismissal

Judge

Hon. Roberta S. Hayashi Trellis Spinner 👉 Discover key insights by exploring more analytics for Roberta S. Hayashi

Court

Superior

County

Santa Clara County, CA

Court Category

Auto Unlimited (22)

Practice Area

Torts

Matter Type

Automobile

Case Last Refreshed

Nov 27, 2024

On January 5, 2023 a breach of contract/warranty unlimited(06) case was filed in the jurisdiction of Santa Clara County. Judge Roberta S. Hayashi presiding.

30 Files
Filed

Jan 05, 2023

Status

Dismissal

Judge

Hon. Roberta S. Hayashi Trellis Spinner 👉 Discover key insights by exploring more analytics for Roberta S. Hayashi

Court

Superior

County

Santa Clara County, CA

Court Category

Breach of Contract/Warranty Unlimited(06)

Practice Area

Commercial

Matter Type

Breach of Contract

Case Last Refreshed

Dec 07, 2024

On January 3, 2023 an other pi/pd/wd unlimited (23) case was filed in the jurisdiction of Santa Clara County. Judge Roberta S. Hayashi presiding.

27 Files
Filed

Jan 03, 2023

Status

Dismissal

Judge

Hon. Roberta S. Hayashi Trellis Spinner 👉 Discover key insights by exploring more analytics for Roberta S. Hayashi

Court

Superior

County

Santa Clara County, CA

Court Category

Other PI/PD/WD Unlimited (23)

Practice Area

Torts

Matter Type

General Torts

Case Last Refreshed

Nov 27, 2024

On December 29, 2022 a breach of contract/warranty unlimited(06) case was filed in the jurisdiction of Santa Clara County. Judge Roberta S. Hayashi presiding.

33 Files
Filed

Dec 29, 2022

Status

Transfer Out

Judge

Hon. Roberta S. Hayashi Trellis Spinner 👉 Discover key insights by exploring more analytics for Roberta S. Hayashi

Court

Superior

County

Santa Clara County, CA

Court Category

Breach of Contract/Warranty Unlimited(06)

Practice Area

Commercial

Matter Type

Breach of Contract

Case Last Refreshed

Jun 11, 2025

On December 29, 2022 an other non-pi/pd/wd tort unlimited (35) case was filed in the jurisdiction of Santa Clara County. Judge Roberta S. Hayashi presiding.

43 Files
Filed

Dec 29, 2022

Status

Active

Judge

Hon. Roberta S. Hayashi Trellis Spinner 👉 Discover key insights by exploring more analytics for Roberta S. Hayashi

Court

Superior

County

Santa Clara County, CA

Court Category

Other non-PI/PD/WD Tort Unlimited (35)

Practice Area

Torts

Matter Type

General Torts

Case Last Refreshed

Jun 12, 2025

On December 28, 2022 an other pi/pd/wd unlimited (23) case was filed in the jurisdiction of Santa Clara County. Judge Roberta S. Hayashi presiding.

61 Files
Filed

Dec 28, 2022

Status

Dismissal

Judge

Hon. Roberta S. Hayashi Trellis Spinner 👉 Discover key insights by exploring more analytics for Roberta S. Hayashi

Court

Superior

County

Santa Clara County, CA

Court Category

Other PI/PD/WD Unlimited (23)

Practice Area

Torts

Matter Type

General Torts

Case Last Refreshed

Jun 11, 2025

On December 23, 2022 an other complaint (not spec) unlimited (42) case was filed in the jurisdiction of Santa Clara County. Judge Roberta S. Hayashi presiding.

16 Files
Filed

Dec 23, 2022

Status

Dismissal

Judge

Hon. Roberta S. Hayashi Trellis Spinner 👉 Discover key insights by exploring more analytics for Roberta S. Hayashi

Court

Superior

County

Santa Clara County, CA

Court Category

Other Complaint (Not Spec) Unlimited (42)

Case Last Refreshed

Jun 12, 2025

On December 19, 2022 a defamation unlimited (13) case was filed in the jurisdiction of Santa Clara County. Judge Roberta S. Hayashi presiding.

93 Files
Filed

Dec 19, 2022

Status

Appealed

Judge

Hon. Roberta S. Hayashi Trellis Spinner 👉 Discover key insights by exploring more analytics for Roberta S. Hayashi

Court

Superior

County

Santa Clara County, CA

Court Category

Defamation Unlimited (13)

Practice Area

Torts

Matter Type

Slander,Libel,Defamation

Case Last Refreshed

Feb 14, 2026

On December 19, 2022 an other complaint (not spec) unlimited (42) case was filed in the jurisdiction of Santa Clara County. Judge Roberta S. Hayashi presiding.

23 Files
Filed

Dec 19, 2022

Status

Settlement

Judge

Hon. Roberta S. Hayashi Trellis Spinner 👉 Discover key insights by exploring more analytics for Roberta S. Hayashi

Court

Superior

County

Santa Clara County, CA

Court Category

Other Complaint (Not Spec) Unlimited (42)

Case Last Refreshed

Jun 11, 2025

On December 19, 2022 a defamation unlimited (13) case was filed in the jurisdiction of Santa Clara County. Judge Roberta S. Hayashi presiding.

92 Files
Filed

Dec 19, 2022

Status

Appealed

Judge

Hon. Roberta S. Hayashi Trellis Spinner 👉 Discover key insights by exploring more analytics for Roberta S. Hayashi

Court

Superior

County

Santa Clara County, CA

Court Category

Defamation Unlimited (13)

Practice Area

Torts

Matter Type

Slander,Libel,Defamation

Case Last Refreshed

Feb 14, 2026

On December 16, 2022 an other pi/pd/wd unlimited (23) case was filed in the jurisdiction of Santa Clara County. Judge Roberta S. Hayashi presiding.

39 Files
Filed

Dec 16, 2022

Status

Closed

Judge

Hon. Roberta S. Hayashi Trellis Spinner 👉 Discover key insights by exploring more analytics for Roberta S. Hayashi

Court

Superior

County

Santa Clara County, CA

Court Category

Other PI/PD/WD Unlimited (23)

Practice Area

Torts

Matter Type

General Torts

Case Last Refreshed

Jun 12, 2025

On December 14, 2022 an other contract unlimited (37) case was filed in the jurisdiction of Santa Clara County. Judge Roberta S. Hayashi presiding.

105 Files
Filed

Dec 14, 2022

Status

Active

Judge

Hon. Roberta S. Hayashi Trellis Spinner 👉 Discover key insights by exploring more analytics for Roberta S. Hayashi

Court

Superior

County

Santa Clara County, CA

Court Category

Other Contract Unlimited (37)

Practice Area

Commercial

Matter Type

Breach of Contract

Case Last Refreshed

Jun 11, 2025

On December 5, 2022 an other pi/pd/wd unlimited (23) case was filed in the jurisdiction of Santa Clara County. Judge Roberta S. Hayashi presiding.

41 Files
Filed

Dec 05, 2022

Status

Active

Judge

Hon. Roberta S. Hayashi Trellis Spinner 👉 Discover key insights by exploring more analytics for Roberta S. Hayashi

Court

Superior

County

Santa Clara County, CA

Court Category

Other PI/PD/WD Unlimited (23)

Practice Area

Torts

Matter Type

General Torts

Case Last Refreshed

Jun 12, 2025

On December 5, 2022 an other pi/pd/wd unlimited (23) case was filed in the jurisdiction of Santa Clara County. Judge Roberta S. Hayashi presiding.

47 Files
Filed

Dec 05, 2022

Status

Active

Judge

Hon. Roberta S. Hayashi Trellis Spinner 👉 Discover key insights by exploring more analytics for Roberta S. Hayashi

Court

Superior

County

Santa Clara County, CA

Court Category

Other PI/PD/WD Unlimited (23)

Practice Area

Torts

Matter Type

General Torts

Case Last Refreshed

Jun 12, 2025

On December 1, 2022 an auto unlimited (22) case was filed in the jurisdiction of Santa Clara County. Judge Roberta S. Hayashi presiding.

23 Files
Filed

Dec 01, 2022

Status

Active

Judge

Hon. Roberta S. Hayashi Trellis Spinner 👉 Discover key insights by exploring more analytics for Roberta S. Hayashi

Court

Superior

County

Santa Clara County, CA

Court Category

Auto Unlimited (22)

Practice Area

Torts

Matter Type

Automobile

Case Last Refreshed

Jun 12, 2025

On November 30, 2022 an enforcement of judgment unlimited (20) case was filed in the jurisdiction of Santa Clara County. Judge Roberta S. Hayashi presiding.

9 Files
Filed

Nov 30, 2022

Status

Active

Judge

Hon. Roberta S. Hayashi Trellis Spinner 👉 Discover key insights by exploring more analytics for Roberta S. Hayashi

Court

Superior

County

Santa Clara County, CA

Court Category

Enforcement of Judgment Unlimited (20)

Practice Area

Creditor

Matter Type

Judgment Enforcement

Case Last Refreshed

Jun 12, 2025

On November 29, 2022 an other real property unlimited (26) case was filed in the jurisdiction of Santa Clara County. Judge Roberta S. Hayashi presiding.

23 Files
Filed

Nov 29, 2022

Status

Dismissal

Judge

Hon. Roberta S. Hayashi Trellis Spinner 👉 Discover key insights by exploring more analytics for Roberta S. Hayashi

Court

Superior

County

Santa Clara County, CA

Court Category

Other Real Property Unlimited (26)

Practice Area

Property

Matter Type

General Property

Case Last Refreshed

Jun 12, 2025

On November 16, 2022 an other real property unlimited (26) case was filed in the jurisdiction of Santa Clara County. Judge Roberta S. Hayashi presiding.

22 Files
Filed

Nov 16, 2022

Status

Active

Judge

Hon. Roberta S. Hayashi Trellis Spinner 👉 Discover key insights by exploring more analytics for Roberta S. Hayashi

Court

Superior

County

Santa Clara County, CA

Court Category

Other Real Property Unlimited (26)

Practice Area

Property

Matter Type

General Property

Case Last Refreshed

Jun 14, 2025

On November 14, 2022 a collections rule 3.740 limited (09) - under 10,000 case was filed in the jurisdiction of Santa Clara County. Judge Roberta S. Hayashi presiding.

15 Files
Filed

Nov 14, 2022

Status

Judgment on the Pleadings

Judge

Hon. Roberta S. Hayashi Trellis Spinner 👉 Discover key insights by exploring more analytics for Roberta S. Hayashi

Court

Superior

County

Santa Clara County, CA

Court Category

Collections Rule 3.740 Limited (09) - under 10,000

Practice Area

Creditor

Matter Type

Collections

Case Last Refreshed

Jun 14, 2025