Issued Patents All Time
Showing 201–209 of 209 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4363878 | Alkali- and heat-resistant inorganic fiber | Keishin Takehara, Yutaka Yasiro | 1982-12-14 |
| 4339318 | Oxygen gas analyzing device | Takeo Tanaka | 1982-07-13 |
| 4290562 | Hub for use in a magnetic recording tape cassette | Shigeo Sasaki | 1981-09-22 |
| 4290909 | Process for producing a lithium borate thermoluminescent and fluorescent substance | Mutsuo Takenaga | 1981-09-22 |
| 4265056 | Electric can-opener with knife sharpener | — | 1981-05-05 |
| 4248731 | Thermoluminescent material | Mutsuo Takenaga, Tadaoki Yamashita | 1981-02-03 |
| 4212697 | Process for producing glass fiber-reinforced resin molded sheets | Yoshiki Matsumoto, Hiromi Yamada, Keishin Takehara | 1980-07-15 |
| 4204119 | Method of reading thermoluminescent dosimeter | Yoshitake Yasuno, Masafumi Watari, Hiroshi Tsutsui, Masaru Ikedo | 1980-05-20 |
| 4197514 | Microwave delay equalizer comprising a pair of distributed-constant_ elements as a directional coupler | Osamu Kasuga | 1980-04-08 |