Kazutoshi Ohta

This inventor holds 7 USPTO granted patents. Top assignees: Fujitsu Corporation, Fujitsu Semiconductor Limited. Active years: 1988-2014.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazutoshi Ohta. Retrieved from https://idiyas.com/inventor/kazutoshi-ohta-v71t136f

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 7

% Patents Active = 57.1

Average Co-Inventor Count = 1.4

ph-index = 4

Forward Citations = 53(Granted Patents)

Location History:

Kanagawa, JP (2002)
Kawasaki, JP (2004 - 2008)
Yokohama, JP (1988 - 2014)

Company Filing History:

Fujitsu Semiconductor Limited

patents

Years Active: 1988-2014

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7 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 8633543 - Electro-static discharge protection circuit and semiconductor device (2014-01-21),

2. 7424145 - Device and method for inspecting photomasks and products fabricated using the same (2008-09-09),

3. 6745484 - Reticle, and pattern positional accuracy measurement device and method (2004-06-08),

4. 6708323 - Method and apparatus for verifying mask pattern data according to given rules (2004-03-16),

5. 6461777 - Layout designing method of a display device (2002-10-08),

6. 6361908 - Layout designing method of a display device (2002-03-26),

7. 4734745 - Method for projecting and exposing a photomask pattern onto re-exposing (1988-03-29),

Title: Kazutoshi Ohta: Innovator in Semiconductor Technology

Introduction

Kazutoshi Ohta is a prominent inventor based in Kawasaki, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 7 patents. His innovative work has paved the way for advancements in electronic devices and systems.

Latest Patents

Ohta's latest patents include an electro-static discharge protection circuit and a semiconductor device. The electro-static discharge protection circuit features a PNPN junction, with the P-type side coupled to a terminal and the N-type side connected to ground. Additionally, it incorporates a P-type metal oxide semiconductor transistor, which enhances the circuit's functionality. Another notable patent is for a device and method for inspecting photomasks and products fabricated using the same. This inspection device significantly reduces the time from inspection to repair by generating reference data based on design data and utilizing sensitivity class codes to differentiate designated pattern functions.

Career Highlights

Throughout his career, Kazutoshi Ohta has worked with esteemed companies such as Fujitsu Corporation and Fujitsu Semiconductor Limited. His experience in these organizations has allowed him to develop and refine his innovative ideas in semiconductor technology.

Collaborations

Ohta has collaborated with notable coworkers, including Tsutomu Horie and Kenji Hashimoto. Their combined expertise has contributed to the successful development of various technologies and patents.

Conclusion

Kazutoshi Ohta's contributions to semiconductor technology and his innovative patents demonstrate his significant impact on the industry. His work continues to influence advancements in electronic devices, showcasing the importance of innovation in technology.

Profile summary based on public USPTO records.

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]