Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11252377 | Camera device, gas leakage check system, gas leakage check method, and gas leakage check program | Motohiro Asano, Takashi Morimoto, Seiichi Tsuzuki | 2022-02-15 |
| 9156196 | Method of manufacturing optical elements | Tadafumi Sakata, Kazunari Tada | 2015-10-13 |
| 8665425 | Eccentricity measuring method | Kazuyuki Ogura, Masahiro Okitsu, Kyu Takada | 2014-03-04 |
| 8416940 | Subscriber accommodating apparatus, transfer control method, communication system, and program product | — | 2013-04-09 |
| 7986604 | Optical element and optical pickup device | Kazunari Tada, Nobuo Mushiake, Kazuyuki Nishi | 2011-07-26 |
| 5068144 | Perpendicular magnetic recording medium and method for producing the same | Osamu Kitakami, Hideo Fujiwara, Kiyotaka Ojima, Kunio Wakai | 1991-11-26 |
| 4879705 | Automatic loading disc player | Yoshio Aoyagi, Hiroyuki Hirano, Toshiyuki Kimura, Susumu Niinuma, Minoru Yoshioka +6 more | 1989-11-07 |
| 4829502 | Automatic loading disc player | Yoshiro Aoyagi, Toshiyuki Kimura, Susumu Niinuma, Minoru Yoshioka, Fumihiko Yokogawa +6 more | 1989-05-09 |
| 4701902 | Automatic loading disc player | Yoshiro Aoyagi, Toshiyuki Kimura, Susumu Niinuma, Minoru Yoshioka, Fumihiko Yokogawa +6 more | 1987-10-20 |
| 4540897 | Digital modulation signal reading device | Saburo Takaoka, Ryuichi Naito, Fumihiko Yokogawa | 1985-09-10 |