Issued Patents All Time
Showing 1–25 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6926794 | Information carrier and process for production thereof | Kyouichi Kohama, Ryuzo Fukao, Kazuhiko Daido, Toshinobu Sueyoshi | 2005-08-09 |
| 6837438 | Non-contact information medium and communication system utilizing the same | Fumiyuki Inose | 2005-01-04 |
| 6786407 | Reader and system for noncontact type information storage medium | — | 2004-09-07 |
| 6482495 | Information carrier and process for production thereof | Kyouichi Kohama, Ryuzo Fukao, Kazuhiko Daido, Toshinobu Sueyoshi | 2002-11-19 |
| 6344824 | Noncontact communication semiconductor device | Fumiyuki Inose | 2002-02-05 |
| 5856662 | Information carrier and process for producing same | Kyoichi Kohama, Kazuhiko Daido | 1999-01-05 |
| RE35435 | Method and apparatus for information recording and reproduction of a pit-shape-forming optical recording type | Atsushi Saito, Takeshi Maeda, Hisataka Sugiyama | 1997-01-28 |
| 5574273 | Non-contact system parallel data transfer system | Kazunari Nakagawa, Takeshi Tottori, Yoshiharu Hino, Takeshi Uchida | 1996-11-12 |
| 5418353 | Non-contact, electromagnetically coupled transmission and receiving system for IC cards | Yosuke Katayama, Toshiharu Ieki, Takashi Takeuchi | 1995-05-23 |
| 5295485 | Ultrasonic diagnostic system | Ryuuichi Shinomura, Yoshikuni Matsunaga, Kageyoshi Katakura | 1994-03-22 |
| 4949325 | Method and associated apparatus and medium for optical recording and reproducing information | Toshiaki Tsuyoshi, Masatoshi Ohtake, Seiji Yonezawa, Takashi Takeuchi, Tadashi Saitoh | 1990-08-14 |
| 4872152 | Light spot position control system and method by sampled servo | Toshiaki Tsuyoshi, Masatoshi Ohtake, Seiji Yonezawa | 1989-10-03 |
| 4866692 | Method and apparatus for information recording and reproduction of a pit-shape-forming optical recording type | Atsushi Saito, Takeshi Maeda, Hisataka Sugiyama | 1989-09-12 |
| 4847822 | Optical information recording and reproducing apparatus with tracking control by sampling | Seiji Yonezawa, Toshiaki Tsuyoshi, Masatoshi Ohtake | 1989-07-11 |
| 4835759 | Method and apparatus for compensating variation of read data in an optical data storage | Atsushi Saito, Takeshi Maeda, Hisataka Sugiyama, Kazuo Shigematsu | 1989-05-30 |
| 4817066 | Transmitter/receiver for ultrasonic diagnostic system | Ryuichi Shinomura, Takeaki Okabe | 1989-03-28 |
| 4785442 | Light spot position control system and method by sampling servo | Masatoshi Ohtake, Seiji Yonezawa, Toshiaki Tsuyoshi, Takashi Takeuchi | 1988-11-15 |
| 4748611 | Information recording medium and method for reproducing the same | Toshiaki Tsuyoshi, Masatoshi Otake, Sachio Kumagai, Kazuo Ichino, Seiji Yonezawa | 1988-05-31 |
| 4735211 | Ultrasonic measurement apparatus | — | 1988-04-05 |
| 4680498 | Input circuit in ultrasonic apparatus | Ryuichi Shinomura, Norio Yokozawa | 1987-07-14 |
| 4646103 | Optical recording method | Hisataka Sugiyama, Kazuo Shigematsu, Takeshi Maeda, Atsushi Saitoh | 1987-02-24 |
| 4564929 | Information recording and reproducing apparatus with tracking control by sampling | Seiji Yonezawa, Tatsuo Horikoshi, Toshiaki Tsuyoshi | 1986-01-14 |
| 4507767 | Control circuit for controlling light source in optical disc device | — | 1985-03-26 |
| 4450547 | Focal position detecting optical apparatus | Shigeru Nakamura, Takeshi Maeda, Toshimitsu Kaku, Yoshito Tsunoda, Tokuya Kaneda | 1984-05-22 |
| 4392219 | Method and device for recording and reproducing tracking information | Norio Yokozawa, Seiji Yonezawa, Kiichi Ueyanagi | 1983-07-05 |