YK

Yujiro Kiyoshima

SC Sumitomo Chemical: 5 patents #946 of 4,033Top 25%
SC Shionogi & Co.: 3 patents #298 of 1,054Top 30%
📍 Ooita, JP: #83 of 516 inventorsTop 20%
Overall (All Time): #884,373 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
6333417 Method for producing hexahydro-2-OXO-1H-thieno[3,4-D]imidazole-4-pentanoic acid Yasunobu Miyamoto 2001-12-25
5684174 Method for purifying O, S-dimethyl N-acetylphosphoramidothioate Yoji Sakito, Mamoru Shirahata, Kazuya Minamisaka, Atukazu Iwata 1997-11-04
5629442 Process for producing .alpha.-hydroxyiminophenylacetonitriles Akira Takase, Hiroyuki Kai, Moriyasu Masui, Katuhisa Masumoto, Akihiko Nakamura +1 more 1997-05-13
5616769 Method for purifying O,S-dimethyl N-acetylphosphoramidothioate Yoji Sakito, Mamoru Shirahata, Kazuya Minamisaka, Atukazu Iwata 1997-04-01
5510506 Process for producing carboxylic acid derivatives Akira Takase, Hiroyuki Kai, Moriyasu Masui, Katuhisa Masumoto, Akihiko Nakamura +1 more 1996-04-23
5498792 Process of producing N-alkylacetamides Katuhisa Masumoto, Akihiko Nakamura, Mikio Sasaki, Asako Tanahashi 1996-03-12