Nara, Japan

Yoshiaki Ohbayashi

This inventor holds 31 USPTO granted patents, primarily in Semiconductor Manufacturing. Top assignees: Hosiden Corporation, Osaka Prefecture, Sanyo Electric Co., Ltd.. Active years: 1989-2009.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshiaki Ohbayashi. Retrieved from https://idiyas.com/inventor/yoshiaki-ohbayashi

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


% Patents Active = 38.7

Average Co-Inventor Count = 4.2

ph-index = 9

Forward Citations = 223(Granted Patents)


Location History:

  • Osaka, JP (2005)
  • Yao, JP (2004 - 2006)
  • Nara, JP (1989 - 2009)

Company Filing History:


Years Active: 1989-2009

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Areas of Expertise:
Sound Detecting Mechanism
Acoustic Sensor
Silicon Carbide Substrate
Optical Connector
Semiconductor Electret Capacitor Microphone
Heat Plate
Rechargeable Battery
Pressure Detecting Device
Etching Method
Cross Flow Cooling Fan
Impact Sensor
Photoelectric Conversion
31 patents (USPTO):Explore Patents

Title: Yoshiaki Ohbayashi: Innovator in Acoustic and Gallium Nitride Technologies

Introduction: Yoshiaki Ohbayashi, based in Nara, Japan, is a prominent inventor known for his contributions to advanced technologies in sound detection and monocrystalline gallium nitride substrates. With an impressive portfolio of 31 patents, his work continues to influence the fields of electronics and acoustics.

Latest Patents: Among his notable inventions is a sound detecting mechanism that simplifies the fabrication process by forming a diaphragm and a back electrode on a substrate. This mechanism includes acoustic holes that play a pivotal role in the device's functionality. Ohbayashi's innovative approach also features a manufacturing method for a monocrystalline gallium nitride localized substrate, which is suitable for creating electronic-optical devices combining both electronic and optical elements on a single silicon substrate.

Career Highlights: Yoshiaki Ohbayashi has held key positions in reputable companies, including Hosiden Corporation and Osaka Prefecture. His extensive experience in these organizations has contributed significantly to advancements in technology and innovation.

Collaborations: Throughout his career, Ohbayashi has collaborated with esteemed colleagues such as Keiji Mine and Mamoru Yasuda. Their joint efforts have further propelled the development of groundbreaking technologies in their respective fields.

Conclusion: Yoshiaki Ohbayashi’s innovative spirit and dedication to advancing technology make him a noteworthy figure in the realm of patents and inventions. His contributions have laid the groundwork for significant advancements in sound detection systems and the integration of electronic and optical devices. As his patents continue to rise, the impact of his work is sure to resonate in the technological landscape for years to come.

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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