Hyogo, Japan

Masaya Kuwahara

This inventor holds 8 USPTO granted patents and 3 published patent applications. Top assignees: Matsushita Electric Industrial Co., Ltd., Panasonic Corporation. Active years: 2002-2012.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masaya Kuwahara. Retrieved from https://idiyas.com/inventor/masaya-kuwahara

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

USPTO Granted Patents = 8 

% Patents Active = 37.5

Average Co-Inventor Count = 2.0

ph-index = 2

Forward Citations = 22(Granted Patents)


Location History:

  • Suita, JP (2007)
  • Osaka, JP (2002 - 2010)
  • Nishinomiya, JP (2010)
  • Hyogo, JP (2008 - 2012)

Company Filing History:


Years Active: 2002-2012

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8 patents (USPTO):Explore Patents

Title: Masaya Kuwahara: Innovator in Optical Technology

Introduction

Masaya Kuwahara is a prominent inventor based in Hyogo, Japan. He has made significant contributions to the field of optical technology, holding a total of 8 patents. His work primarily focuses on interlayer movement apparatuses and optical disk technology.

Latest Patents

Kuwahara's latest patents include an interlayer movement apparatus and an integrated circuit for the interlayer movement apparatus. The interlayer movement apparatus is designed to move the focal point of laser light to an arbitrary layer. It features an objective lens that collects laser light from an optical source, a focus actuator that moves the objective lens along its optical axis, and a focus error detection system that detects the convergent state of the laser light on the information layer of an optical disc. The integrated circuit enhances the control of the focal point movement based on the relative speed between the information layer and the focal point, calculated using the time required for the laser light to pass through various layers.

Another notable patent is an optical disk apparatus that controls focus and tracking drive in both gap and recorded areas while adjusting write power. This apparatus includes a laser drive device that outputs a test power larger than a prescribed value in a gap section, an optical pickup for forming a beam spot on a disk, and a focus control device that manages position shifts between the recording face and the beam spot.

Career Highlights

Throughout his career, Masaya Kuwahara has worked with notable companies such as Matsushita Electric Industrial Co., Ltd. and Panasonic Corporation. His experience in these organizations has allowed him to develop innovative solutions in optical technology.

Collaborations

Kuwahara has collaborated with esteemed colleagues, including Shinichi Yamada and Kiyoshi Masaki. Their combined expertise has contributed to advancements in the field of optical devices.

Conclusion

Masaya Kuwahara's contributions to optical technology through his patents and collaborations highlight his role as a key innovator in the industry. His work continues to influence advancements in optical systems and devices.

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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