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Sanyo Optec Design Co., Ltd.

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USPTO Granted Patents = 70

% Expired Patents = 94.3

Forward Citations = 69

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42 inventors (with patents filed for the assignee):

Ryoichi Kawasaki (35 out of 42 patents)

Tohru Hotta (24 out of 31 patents)

Hiroyuki Shindo (12 out of 48 patents)

4. Yoshiaki Maeno (6 out of 16 patents)

5. Atsushi Yamaguchi (5 out of 102 patents)

6. Hiroyuki Ichikawa (4 out of 4 patents)

7. Kiyoshi Hibino (4 out of 8 patents)

8. Masato Yamada (3 out of 15 patents)

9. Mitsuhiro Hashimoto (3 out of 3 patents)

10. Masahito Ogata (3 out of 3 patents)

11. Mitsuru Ito (3 out of 14 patents)

12. Toru Kajino (3 out of 3 patents)

13. Kenji Kan (3 out of 3 patents)

14. Kenichirou Kawabuchi (3 out of 3 patents)

15. Yuki Koshimizu (2 out of 2 patents)

Core Competencies:

Optical Pickup Apparatus

Objective Lens

Semiconductor Laser

Photodetector

Beam Irradiation

Optical Disc Apparatus

Lens Driving

Laser Radar

Light Emitting Device

Heatsink

Position Adjusting

Manufacturing Method

70 patents: Sort by Forward Citations

1. 8559289 - Optical pickup apparatus (2013-10-15),

2. 8531934 - Optical pickup device and optical pickup supporting device including partially overlapping mirrors (2013-09-10),

3. 8520707 - Optical pickup device (2013-08-27),

4. 8520487 - Optical element retaining device, optical element transfer device and optical pickup device (2013-08-27),

5. 8488434 - Objective lens, optical pickup apparatus using the same, and method for manufacturing objective lens (2013-07-16),

6. 8477823 - Semiconductor laser apparatus and optical apparatus (2013-07-02),

7. 8441900 - Objective lens and optical pick-up device using the same (2013-05-14),

8. 8432783 - Optical pickup device and position adjusting method for light separating element (2013-04-30),

9. 8429681 - Optical disc apparatus which includes an optical pickup apparatus that includes an optical member driving apparatus (2013-04-23),

10. 8427924 - Optical pickup apparatus (2013-04-23),

11. 8427921 - Light emitting device, optical pickup apparatus and method for manufacturing the same (2013-04-23),

12. 8400901 - Optical pickup device (2013-03-19),

13. 8400900 - Lens, lens mounting method and optical pickup device (2013-03-19),

14. 8395983 - Optical pickup apparatus (2013-03-12),

15. 8387080 - Optical pickup apparatus having a heatsink for dissipating heat generated by a laser diode (2013-02-26),

Company Overview

Sanyo Optec Design Co., Ltd., based in Tokyo, specializes in the development and manufacturing of advanced optical pickup technology. The company focuses on key components such as optical pickup apparatus, objective lenses, semiconductor lasers, and photodetectors, which are essential for various optical disc applications. Additionally, Sanyo Optec is involved in innovative solutions for beam irradiation, lens driving mechanisms, and laser radar systems, contributing significantly to the optical technology landscape.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Nov 3 2026

70 Patents

#672 in Tokyo

#1,411 in Japan

#10,653 in the World

Sanyo Optec Design Co., Ltd.

Forward Citations = 69

42 inventors:

Ryoichi Kawasaki (35 out of 42 patents)

Tohru Hotta (24 out of 31 patents)

Hiroyuki Shindo (12 out of 48 patents)

4. Yoshiaki Maeno (6 out of 16 patents)

5. Atsushi Yamaguchi (5 out of 102 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Sanyo Optec Design Co., Ltd.. Retrieved from https://idiyas.com/company/sanyo-optec-design-company

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

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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