Issued Patents All Time
Showing 1–25 of 45 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12298988 | Server and information processing method for collecting human vital data and providing the data to users | Yohei KANAZAWA | 2025-05-13 |
| 11619624 | Health facilitation system, sensor, and health facilitation method | Yohei KANAZAWA | 2023-04-04 |
| 5871881 | Multilayer optical information medium | Tetsuya Nishida, Yumiko Anzai, Kenchi Ito, Masahiko Takahashi, Hisae Sasaki +1 more | 1999-02-16 |
| 5666598 | Image forming method and apparatus using energy beam impingement on image forming particles to move the same | Tatsuya Sugita, Akira Arimoto, Teruaki Mitsuya, Nobuyoshi Hoshi, Mamoru Okano +4 more | 1997-09-09 |
| 5574881 | High capacity data storage method and system using independently controlled heads and circuitry for monitoring access frequency of data records | Hiroshi Yasuoka, Takeshi Maeda, Yoshihisa Kamo, Hiromichi Fujisawa, Zenji Tsutsumi +1 more | 1996-11-12 |
| 5572699 | Variable length data in a parallel disk array | Yoshihisa Kamo, Hajime Aoi, Hitoshi Kakuta, Hiromichi Fujisawa, Yosuke Seo +1 more | 1996-11-05 |
| 5404348 | Method for recording and reproducing information using at least two energy beams | Motoyasu Terao, Kunikazu Ohnishi, Tesuya Nishida, Hiroshi Yasuoka, Keikichi Ando +3 more | 1995-04-04 |
| 5327371 | Information recording and reproducing apparatus | Yooji Maruyama, Ryo Imura, Kazuhisa Fujimoto | 1994-07-05 |
| 5218599 | Method of recording and reproduction of information using a recording medium available for information overlap recording, a recording medium and a recording and reproducing apparatus using the method | Toshiaki Tsuyoshi, Hiromichi Fujisawa | 1993-06-08 |
| 5109374 | Small-sized optical memory device and information processing apparatus utilizing cylindrically shaped information recording medium | Hiroshi Yasuoka, Takeshi Maeda | 1992-04-28 |
| 5084860 | Apparatus for optical disc memory with correction pattern and master disc cutting apparatus | Takeshi Maeda, Kazuo Shigematsu, Toshimitsu Kaku | 1992-01-28 |
| 5073880 | Information recording/reproducing method and apparatus | Takeshi Maeda | 1991-12-17 |
| 5025268 | Optical scanning apparatus and asymmetrical aspheric scanning lens | Akira Arimoto, Susumu Saito, Shigeo Moriyama, Takeshi Mochizuki | 1991-06-18 |
| 4985616 | Optical card having optical grooves for access and wobbled marks for tracking and a recording-reproducing apparatus therefor | Shigeru Nakamura, Takeshi Maeda | 1991-01-15 |
| 4970707 | Optical tape apparatus with a tracking control mechanism and/or a focusing control mechanism | Fumio Hara, Shigeru Nakamura, Yoshizumi Eto, Seiichi Mita, Morishi Izumita +2 more | 1990-11-13 |
| 4953152 | Mastering machine for making an on-land recording master disk with two beam alignment servo loops | Masaru Ito, Hitoshi Watanabe, Toshiaki Taii | 1990-08-28 |
| 4949331 | Apparatus and record carrier for optical disc memory with correction pattern and master disc cutting apparatus | Takeshi Maeda, Kazuo Shigematsu, Toshimitsu Kaku | 1990-08-14 |
| 4879703 | Magneto-optic memory apparatus with defect detection of recording medium during erasing operation | Toshimitsu Kaku, Kazuo Shigematsu | 1989-11-07 |
| 4855991 | Optical disk having track offset detection areas | Toshimitsu Kaku, Takeshi Maeda, Shigeru Nakamura | 1989-08-08 |
| 4835756 | Optical memory apparatus using an optical disc having guide-grooves of V-shape and predetermined optical depth and access method therefor | Toshimitsu Kaku, Takeshi Maeda, Shigeru Nakamura, Masaru Ito, Kazuo Shigematsu | 1989-05-30 |
| 4815058 | Optical information processing apparatus | Shigeru Nakamura | 1989-03-21 |
| 4807210 | Optical information processing apparatus | Toshimitsu Kaku, Kazuo Shigematsu, Takeshi Maeda | 1989-02-21 |
| 4802153 | Optical information processor and method for accessing rotating record carrier utilizing acousto-optic light deflector including holding a focus error signal during track jumping | Keiji Kataoka, Takeshi Maeda | 1989-01-31 |
| 4791650 | Phased-array semiconductor laser apparatus | Kimio Tatsuno | 1988-12-13 |
| 4759628 | Wavelength scanning interferometry and interferometer employing laser diode | Kimio Tatsuno, Masatoshi Ohtake, Keiji Kataoka, Seiji Yonezawa | 1988-07-26 |