Tokyo, Japan

Hidetoshi Ishihara

This inventor holds 8 USPTO granted patents and 1 EPO patent. Top assignee: Sanyo Electric Co., Ltd.. Active years: 2003-2009.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hidetoshi Ishihara. Retrieved from https://idiyas.com/inventor/hidetoshi-ishihara-w6zpyep3

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


% Patents Active = 87.5

 

Average Co-Inventor Count = 5.3

ph-index = 3

Forward Citations = 40(Granted Patents)


Location History:

  • Gunma, JP (2004)
  • Oizumi-machi, JP (2003 - 2005)
  • Ora-gun, JP (2004 - 2006)
  • Tokyo, JP (2008 - 2009)

Company Filing History:


Years Active: 2003-2009

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8 patents (USPTO):Explore Patents

Title: Hidetoshi Ishihara: Innovator in Compound Semiconductor Technology

Introduction

Hidetoshi Ishihara is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of compound semiconductor technology, holding a total of 8 patents. His innovative work focuses on improving the performance and reliability of semiconductor devices.

Latest Patents

Ishihara's latest patents include a compound semiconductor switch circuit device that features a unique gate wiring electrode formed into a ladder-like pattern. This design allows for the strategic placement of gate wiring electrodes between source and drain electrodes, which effectively reduces capacitance at critical junctions. As a result, the second harmonic wave level is lowered, and high-frequency signal leakage is prevented, leading to improved distortion characteristics of the Switch MMIC. Another notable patent involves a compound semiconductor switching circuit device that incorporates protecting elements connected between various terminals of a logic circuit. This innovation safeguards components from electrostatic breakdown, enhancing the overall reliability of the device.

Career Highlights

Throughout his career, Hidetoshi Ishihara has worked with notable companies such as Sanyo Electric Co., Ltd. and Bridgestone Corporation. His experience in these organizations has contributed to his expertise in semiconductor technology and innovation.

Collaborations

Ishihara has collaborated with esteemed colleagues, including Tetsuro Asano and Mikito Sakakibara. These partnerships have fostered a collaborative environment that encourages the exchange of ideas and advancements in technology.

Conclusion

Hidetoshi Ishihara's contributions to compound semiconductor technology have significantly impacted the industry. His innovative patents and collaborations with other experts highlight his dedication to advancing technology and improving device performance.

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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