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For the Inventor, By the Inventor

Ota, Japan

Chikashi Yoshinaga

This inventor holds 7 USPTO granted patents. Top assignee: Sanyo Electric Co., Ltd.. Active years: 1992-2013.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Chikashi Yoshinaga. Retrieved from https://idiyas.com/inventor/chikashi-yoshinaga

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

Calculating rank
USPTO Granted Patents = 7

% Patents Active = 28.6

Average Co-Inventor Count = 1.9

ph-index = 2

Forward Citations = 10(Granted Patents)


Location History:

  • Nitta-Gun, JP (2008)
  • Gunma, JP (1992 - 2010)
  • Ota, JP (2010 - 2013)

Company Filing History:

goldMedal7 out of 8,782 
 
Sanyo Electric Co., Ltd.
 patents

Years Active: 1992-2013

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7 patents (USPTO):Explore Patents
1. 8488422 - Elastic member, mounting structure of optical element, and pickup apparatus having the same (2013-07-16),
2. 7934226 - Optical pickup apparatus (2011-04-26),
3. 7672197 - Optical pickup device and manufacturing method thereof (2010-03-02),
4. 7665101 - Optical pickup apparatus (2010-02-16),
5. 7388815 - Wiring layout structure for optical head device (2008-06-17),
6. 6845510 - Objective lens driving device with cover having an opening for exposing a tracking coil (2005-01-18),
7. 5136565 - Optical device for reading and writing data on a recording medium (1992-08-04),

Title: Chikashi Yoshinaga: Innovator in Optical Technologies

Introduction

Chikashi Yoshinaga is a prominent inventor based in Ota, Japan. He has made significant contributions to the field of optical technologies, holding a total of 7 patents. His work focuses on innovative solutions that enhance the functionality and efficiency of optical devices.

Latest Patents

Yoshinaga's latest patents include an elastic member and a mounting structure for optical elements. The mounting structure is designed to facilitate the secure installation of optical components, utilizing an elastic member that ensures proper alignment and stability. Another notable invention is an optical pickup apparatus, which features a photo detector that captures light reflected from a medium. This apparatus includes a housing that supports the photo detector and a projecting portion that prevents displacement, ensuring reliable performance.

Career Highlights

Chikashi Yoshinaga has built a successful career at Sanyo Electric Co., Ltd., where he has been instrumental in developing cutting-edge optical technologies. His innovative designs have not only advanced the company's product offerings but have also contributed to the broader field of optical engineering.

Collaborations

Yoshinaga has collaborated with notable colleagues, including Kenichi Takeuchi and Noriyoshi Ooyama. These partnerships have fostered a creative environment that encourages the exchange of ideas and the development of groundbreaking technologies.

Conclusion

Chikashi Yoshinaga's contributions to optical technologies exemplify the spirit of innovation. His patents reflect a commitment to enhancing the functionality of optical devices, making a lasting impact in the field.

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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