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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 130 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),

Memory-Tech Corporation is a leading provider of optical disc replication services and DVD/CD/BD manufacturing equipment. With over 30 years of experience, the company offers innovative solutions for optical media production, including disc replication, packaging, and printing. Memory-Tech Corporation also develops state-of-the-art manufacturing equipment, such as Blu-ray Disc recorders and high-speed DVD/CD replication machines. Leveraging advanced technology and a commitment to quality, the company delivers reliable and cost-effective solutions to clients in various industries, including entertainment, information storage, and data distribution.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

Memory-Tech Corporation

12 Patents

#26 in Ibaraki

#3,930 in Japan

#48,090 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 130 patents)

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