Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4563529 | Process for producing trifluoromethylpyridines | Ryuzo Nishiyama, Isao Yokomichi, Yasuhiro Tsujii, Shigeyuki Nishimura | 1986-01-07 |
| 4546191 | Trifluoromethyl-2-pyridinone or pyridinthione compounds and process for the preparation of the same | Ryuzo Nishiyama, Isao Yokomichi, Takahiro Haga, Kuniaki Nagatani, Kouji Hayashi | 1985-10-08 |
| 4490534 | Process for producing 3-chloro-5-trifluoromethylpyridines | Yasuhiro Tsujii, Itaru Shigehara, Tatsuo Isogai, Hiroshi Yoshizawa, Mikio Miyaji | 1984-12-25 |
| 4417055 | Process for producing a .beta.-trifluoromethylpyridine | Ryuzo Nishiyama, Isao Yokomichi, Yasuhiro Tsujii, Shigeyuki Nishimura | 1983-11-22 |
| 4406841 | Process for producing 2,6-difluorobenzonitrile | Ryuzo Nishiyama, Yasuhiro Tsujii, Shigeo Murai, Hisayoshi Jyonishi | 1983-09-27 |
| 4380670 | Process for producing 1,3,5-triaminobenzene | Ryuzo Nishiyama, Isao Yokomichi, Itaru Shigehara, Mikio Miyaji | 1983-04-19 |
| 4368340 | Process for producing 1,3,5-trichlorobenzene | Ryuzo Nishiyama, Isao Yokomichi, Itaru Shigehara, Mikio Miyaji | 1983-01-11 |
| 4367336 | 2-Substituted-5-trifluoromethylpyridines and process for producing the same | Ryuzo Nishiyama, Isao Yokomichi, Takahiro Haga, Toru Koyanagi | 1983-01-04 |
| 4347390 | Process for producing 1-bromo-3,5-dichlorobenzene | Ryuzo Nishiyama, Isao Yokomichi, Yasuhiro Tsujii, Itaru Shigehara, Kuniaki Nagatani +1 more | 1982-08-31 |
| 4332961 | Herbicidal compound, herbicidal composition containing the same, and method of use thereof | Ryohei Takahashi, Isao Yokomichi, Sinzo Someya, Nobuyuki Sakashita | 1982-06-01 |
| 4331670 | Pyridylanilines | Ryuzo Nishiyama, Takahiro Haga, Tadaaki Toki, Kuniaki Nagatani, Osamu Imai | 1982-05-25 |
| 4314069 | Herbicidal compound, herbicidal composition containing the same, and method of use thereof | Ryohei Takahashi, Isao Yokomichi, Sinzo Someya, Nobuyuki Sakashita | 1982-02-02 |
| 4309562 | Herbicidal compound, herbicidal composition containing the same, and method of use thereof | Ryohei Takahashi, Isao Yokomichi, Sinzo Someya, Nobuyuki Sakashita | 1982-01-05 |
| 4288599 | Process for producing pyridine derivatives having a trifluoromethyl group at .beta.-position thereof | Ryuzo Nishiyama, Isao Yokomichi, Yasuhiro Tsujii, Shigeyuki Nishimura | 1981-09-08 |
| 4270948 | Herbicidal compound, herbicidal composition containing the same, and method of use thereof | Ryohei Takahashi, Isao Yokomichi, Sinzo Someya, Nobuyuki Sakashita | 1981-06-02 |
| 4267336 | Process for producing 4-(pyridyl-2-oxy)-phenoxyalkanecarboxylic acid or its derivatives | Ryuzo Nishiyama, Rikuo Nasu, Itaru Shigehara | 1981-05-12 |
| 4266064 | Process for producing chloro .beta.-trifluoromethylpyridines | Ryuzo Nishiyama, Isao Yokomichi, Yasuhiro Tsujii, Shigeyuki Nishimura | 1981-05-05 |
| 4241213 | Process for producing 2-chloro-5-trichloromethyl pyridine | Ryuzo Nishiyama, Isao Yokomichi, Rikuo Nasu, Takao Awazu, Junichi Kawashima | 1980-12-23 |
| 4235621 | 2-Substituted phenoxy-3-chloro-5-trifluoromethyl pyridine useful as a herbicide | Ryuzo Nishiyama, Takahiro Haga, Tadaaki Toki, Terumasa Komyoji, Nobuyuki Sakashita +1 more | 1980-11-25 |
| 4231787 | Herbicidal compound, herbicidal composition containing the same, and method of use thereof | Ryuzo Nishiyama, Ryohei Takahashi, Rikuo Nasu, Nobuyuki Sakashita | 1980-11-04 |
| 4230642 | Process for producing 3,5-dichloro-.alpha.-methylstyrene | Ryuzo Nishiyama, Yasuhiro Tsujii, Itaru Shigehara | 1980-10-28 |
| 4218237 | Pyridine-2-thio, -2-sulfinyl, and -2-sulfonyl sulfonanilide compounds useful as a herbicidal component | Ryuzo Nishiyama, Fumio Kimura, Rikuo Nasu, Nobuyuki Sakashita, Shigeyuki Nishimura | 1980-08-19 |
| 4203758 | Herbicidal phenoxy-phenoxyalkane thio esters | Ryuzo Nishiyama, Ryohei Takahashi, Isao Yokomichi, Itaru Shigehara, Nobuyuki Sakashita | 1980-05-20 |
| 4184041 | 2-Substituted-5-trifluoromethylpyridine compounds | Ryuzo Nishiyama, Takahiro Haga, Kuniaki Nagatani | 1980-01-15 |