Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10308604 | Method for producing pyrrole derivative, and intermediate thereof | Masashi Watanabe, Hiroshi Nagasawa | 2019-06-04 |
| 10005725 | Method for producing pyrrole derivative, and intermediate thereof | Masashi Watanabe, Hiroshi Nagasawa | 2018-06-26 |
| 9776961 | Crystal of pyrrole derivative and method for producing the same | Masashi Watanabe, Takahiro Okachi, Michiaki Kawahara, Hiroshi Nagasawa, Takashi Takita +1 more | 2017-10-03 |
| 9765025 | Method for producing pyrrole derivative, and intermediate thereof | Masashi Watanabe, Hiroshi Nagasawa | 2017-09-19 |
| 9676713 | Crystal of pyrrole derivative and method for producing the same | Masashi Watanabe, Takahiro Okachi, Michiaki Kawahara, Hiroshi Nagasawa, Takashi Takita +1 more | 2017-06-13 |
| 9499483 | Crystal of pyrrole derivative and method for producing the same | Masashi Watanabe, Takahiro Okachi, Michiaki Kawahara, Hiroshi Nagasawa, Takashi Takita +1 more | 2016-11-22 |
| 7547790 | Optically active 4,4-di-substituted oxazolidine derivative and method for producing same | Toshihiko Onoda, Yoshitaka Nakamura, Makoto Yamaoka, Tadahiro Takeda, Masayoshi Jin | 2009-06-16 |
| 5156979 | Semiconductor-based radiation-detector element | Toshikazu Suzuki, Osamu Ishiwata | 1992-10-20 |
| 5019886 | Semiconductor-based radiation-detector element | Toshikazu Suzuki, Osamu Ishiwata | 1991-05-28 |
| 4960436 | Radiation or light detecting semiconductor element containing heavily doped p-type stopper region | — | 1990-10-02 |
| 4896200 | Novel semiconductor-based radiation detector | Yasukazu Seki, Masaya Yabe | 1990-01-23 |
| 4835587 | Semiconductor device for detecting radiation | Yasukazu Seki | 1989-05-30 |
| 4768072 | Multilayer semiconductor device having an amorphous carbon and silicon layer | Yasakazu Seki, Masaya Yabe | 1988-08-30 |
| 4762803 | Process for forming crystalline films by glow discharge | Yasukazu Seki | 1988-08-09 |
| 4692782 | Semiconductor radioactive ray detector | Yasukazu Seki, Masaya Yabe | 1987-09-08 |
| 4689649 | Semiconductor radiation detector | Toshikazu Suzuki, Yasukazu Seki | 1987-08-25 |
| 4627991 | Method for forming a protective film on a semiconductor body | Yasukazu Seki, Osamu Ishiwata | 1986-12-09 |
| 4618381 | Method for adding impurities to semiconductor base material | Yasukazu Seki, Osamu Ishiwate | 1986-10-21 |
| 4611224 | Semiconductor radiation detector | Yasukazu Seki, Masaya Yabe | 1986-09-09 |
| 4565588 | Method for diffusion of impurities | Yasukazu Seki | 1986-01-21 |