Fujisawa, Japan

Shinzi Okuhara

This inventor holds 24 USPTO granted patents, primarily in Semiconductor Technology. Top assignee: Hitachi, Ltd.. Active years: 1976-1980.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shinzi Okuhara. Retrieved from https://idiyas.com/inventor/shinzi-okuhara

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


% Patents Active = 100.0

Average Co-Inventor Count = 2.4

ph-index = 8

Forward Citations = 206(Granted Patents)


Location History:

  • Fujisawa, JA (1976 - 1978)
  • Fujisawa, JP (1978 - 1980)

Company Filing History:


Years Active: 1976-1980

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Areas of Expertise:
Semiconductor Switch
Integrated Circuits
Memory Circuit
Light-Emitting Diode
Speech Path Switch
Bidirectional Switch
Constant Current Circuit
Channel Switch
Triggering Method
Switch Device
Semiconductor Circuit
Light Activated Switch
24 patents (USPTO):Explore Patents

Title: Innovations in Semiconductor Technology: The Contributions of Shinzi Okuhara

Introduction: Shinzi Okuhara is a renowned inventor based in Fujisawa, Japan, recognized for his significant contributions to the field of semiconductor technology. With 24 patents to his name, Okuhara has made strides in the development of innovative semiconductor switch circuits that enhance efficiency and integration in electrical applications.

Latest Patents: Among Okuhara's latest innovations is a sophisticated semiconductor switch circuit that employs at least one 4-terminal PNPN switch, featuring unique cathode and anode gates for the effective switching of AC signals. This innovative design incorporates a current-supplying circuit connected to the cathode gate, along with a constant-current-type current-sinking circuit, enabling selective current control based on the PNPN switch's potential. The result is a semiconductor switch circuit that exhibits simplicity in construction and is suitable for cost-efficient integration into integrated circuits. Additionally, he has developed a semiconductor switch that comprises a pair of PNPN switches arranged in inverse-parallel mode. Each switch is equipped with a protective switching circuit that enhances reliability by connecting gate terminals through capacitive elements to facilitate voltage pulse generation in a repetitive manner.

Career Highlights: Shinzi Okuhara is associated with Hitachi, Ltd., a leading technology company where his expertise in semiconductor design is harnessed for advancing product development and innovation. His work has had a substantial impact on the industry, particularly in improving the functionality and efficiency of semiconductor devices.

Collaborations: Throughout his career, Okuhara has collaborated with other talented engineers, including Ichiro Ohhinata and Michio Tokunaga. Together, they have worked on various projects that have pushed the boundaries of semiconductor technologies and have contributed to the evolving landscape of electronics.

Conclusion: Shinzi Okuhara's innovative patents and collaborations have firmly established him as a prominent figure in the semiconductor industry. His contributions are not only significant in terms of their technological advancements but also in their potential to drive future innovations in electronic devices. As the field continues to evolve, the impact of his work will undoubtedly resonate in the advancement of semiconductor technologies.

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]
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