Issued Patents All Time
Showing 401–425 of 431 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4409291 | Magnetic recording medium | Akira Kasuga, Yasuo Tamai, Yasuyuki Yamada | 1983-10-11 |
| 4402595 | Scanning type image formation apparatus | Tateki Nagaoka, Yoshikuni Tohyama | 1983-09-06 |
| 4397011 | Apparatus for reproducing disc record | — | 1983-08-02 |
| 4395466 | Magnetic recording medium | Yasuo Tamai | 1983-07-26 |
| 4386300 | Apparatus for reproducing disc record | — | 1983-05-31 |
| 4374433 | Stereo pickup with printed circuit coils mounted in a linear field | Kazuhiro Sato, Norio Shibata, Katsuhiko Oguri, Masayoshi Utida, Tsuyoshi Ono | 1983-02-15 |
| 4350390 | Seat | — | 1982-09-21 |
| 4338683 | Videodisc player with constant turntable velocity | Shunsuke Furukawa, Hitoshi Okada, Masanobu Yamamoto | 1982-07-06 |
| 4320159 | Magnetic recording medium | Hiromi Nakahara, Yasuo Tamai | 1982-03-16 |
| 4312587 | Image forming apparatus | Masao Ariga, Hiroyuki Hattori, Katsuichi Shimizu, Hirotoshi Kishi, Takahiko Amanuma +3 more | 1982-01-26 |
| 4308311 | Magnetic recording material | Masashi Aonuma, Yasuo Tamai | 1981-12-29 |
| 4308425 | Variable-directivity microphone device | Chikahide Momose, Atushi Yumoto, Naotaka Miyaji, Isami Nomoto | 1981-12-29 |
| 4305445 | Large-sized pneumatic radial tires | Makoto Yoshioka | 1981-12-15 |
| 4282914 | Pneumatic tire for heavy load vehicles | Hiroyoshi Takigawa, Nobuhiro Miyamura, Shinichiro Ohkuni | 1981-08-11 |
| 4277460 | Cortisol radioimmunoassay method and cortisol derivatives useful therefor | Masaharu Kojima, Hisao Sone, Nobuhiko Nakazawa, Seiji Tachibana | 1981-07-07 |
| 4277393 | Radioimmunoassay method for determining calcitonin and radioactive tracer for use therein | Shumpei Sakakibara, Yuichi Kumahara, Yoshiaki Okada, Nobuhiko Nakazawa, Shoichiro Tsushima | 1981-07-07 |
| 4271885 | Heavy duty pneumatic radial tire exhibiting less railway wear | Hiroyoshi Takigawa, Mitsuhisa Yahagi | 1981-06-09 |
| 4268913 | Electronic calculator watch | Tadahiko Nakagiri, Kunihiro Daigo, Toshiaki Oguchi, Minoru Natori, Toshikazu Hatuse +6 more | 1981-05-19 |
| 4265931 | Process for the production of a magnetic recording member | Yasuo Tamai | 1981-05-05 |
| 4262722 | Radial tire for heavy load vehicles | Hiroyoshi Takigawa, Nobuhiro Miyamura, Shinichiro Ohkuni | 1981-04-21 |
| 4257115 | Switch structure for electronic timepiece | Toshikazu Hatuse, Minoru Natori, Toshikazu Shimazaki, Kouhei Kawanobe | 1981-03-17 |
| 4255802 | Electronic timepiece | — | 1981-03-10 |
| 4247192 | Copying machine | Shigehiro Komori | 1981-01-27 |
| 4234305 | Transfer sheet guiding device | Hiroyuki Miyake, Kazumi Umezawa, Hitotoshi Kishi, Seiji Sagara, Hiroshi Hara | 1980-11-18 |
| 4214618 | Heavy duty pneumatic radial tire | Hiroyoshi Takigawa, Shinichiro Ohkuni, Mitsuhisa Yahagi | 1980-07-29 |