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Memory-Tech Corporation

USPTO Granted Patents = 12

% Expired Patents = 83.3

Forward Citations = 11

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21 inventors (with patents filed for the assignee):

Masato Otsuka (6 out of 12 patents)

Masahito Konishi (5 out of 20 patents)

Hideharu Tajima (5 out of 80 patents)

4. Toshihiro Sugaya (5 out of 36 patents)

5. Masaki Yamamoto (4 out of 131 patents)

6. Hirohisa Yamada (4 out of 47 patents)

7. Yasuhiro Harada (4 out of 30 patents)

8. Go Mori (4 out of 60 patents)

9. Naomasa Nakamura (2 out of 67 patents)

10. Nobuhisa Yoshida (2 out of 11 patents)

11. Hisashi Yamada (2 out of 73 patents)

12. Hideyoshi Horimai (1 out of 33 patents)

13. Atsushi Etoh (1 out of 20 patents)

14. Hiroaki Ashiwa (1 out of 2 patents)

15. Ryo Kojima (1 out of 1 patent)

12 patents: Sort by Forward Citations

1. 9105278 - Optical information recording medium having super-resolution film (2015-08-11),

2. 8913476 - Optical information recording medium having super-resolution film (2014-12-16),

3. 8817587 - Optical information recording medium having super-resolution film (2014-08-26),

4. 8699313 - Optical information recording medium having super-resolution film (2014-04-15),

5. 8437243 - Optical information recording medium (2013-05-07),

6. 7821908 - Optical disc, optical disc apparatus, and optical disc reproducing method (2010-10-26),

7. 7748050 - Optical disc, illegal copy finding system and method using optical disc, optical disc manufacturing apparatus and optical disc manufacturing method (2010-06-29),

8. 7688702 - Optical disc and optical disc device (2010-03-30),

9. 7652967 - Single-sided triple layer optical disc (2010-01-26),

10. 7570566 - Optical disc, optical disc manufacturing method, and optical disc apparatus (2009-08-04),

11. 7477592 - Optical disc, optical disc apparatus, optical disk reproducing method, and digital work publication (2009-01-13),

12. 7433293 - Optical disc recording medium and method of manufacturing the same (2008-10-07),

Company Overview

Memory-Tech Corporation, headquartered in Ibaraki, Japan, specializes in advanced memory solutions and semiconductor technologies. The company focuses on the development and manufacturing of high-performance memory products that cater to various industries, including consumer electronics, automotive, and industrial applications. With a commitment to innovation, Memory-Tech engages in cutting-edge research to enhance data storage capabilities and improve overall system performance, positioning itself as a key player in the global semiconductor landscape.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

12 Patents

#26 in Ibaraki

#3,936 in Japan

#48,209 in the World

Memory-Tech Corporation

Forward Citations = 11

21 inventors:

Masato Otsuka (6 out of 12 patents)

Masahito Konishi (5 out of 20 patents)

Hideharu Tajima (5 out of 80 patents)

4. Toshihiro Sugaya (5 out of 36 patents)

5. Masaki Yamamoto (4 out of 131 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Memory-Tech Corporation. Retrieved from https://idiyas.com/company/memory-tech

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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