Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5458864 | Process for producing high-purity silica by reacting crude silica with ammonium fluoride | Kenji Tanimoto, Masao Kubo | 1995-10-17 |
| 5266289 | Process for producing high-purity silica by reacting crude silica with ammonium fluoride | Kenji Tanimoto, Masao Kubo | 1993-11-30 |
| 5230953 | Silica particles and process for producing the same | Yasushi Takako, Masao Kubo, Tokumi Mochiyama, Yoshito Yuri | 1993-07-27 |
| 4540706 | Insecticidal 1-N-phenylcarbamoyl-3-(4-difluoromethoxyphenyl)-4-phenyl-2-pyrazoline derivatives | Kiyomi Ozawa, Yasuyuki Nakajima, Shigeru Ishii, Masataka Hatanaka, Masayoshi Hirose +1 more | 1985-09-10 |
| 4464386 | Insecticidal 3-difluoromethoxyphenyl-1-phenylcarbamoyl-2-pyrazolines | Kiyomi Ozawa, Yasuyuki Nakajima, Shigeru Ishii, Masataka Hatanaka | 1984-08-07 |
| 4410732 | Phenyl ketone derivatives | Kiyomi Ozawa, Yasuyuki Nakajima | 1983-10-18 |
| 4407813 | Insecticidal pyrazoline derivatives and composition | Kiyomi Ozawa, Yasuyuki Nakajima, Shigeru Ishii, Masataka Hatanaka | 1983-10-04 |