DS

Daisuke Shirakawa

AC Asahi Glass Co.: 34 patents #9 of 2,251Top 1%
AG Agc: 5 patents #147 of 954Top 20%
📍 Chiyoda, JP: #61 of 1,712 inventorsTop 4%
Overall (All Time): #82,767 of 4,157,543Top 2%
39
Patents All Time

Issued Patents All Time

Showing 26–39 of 39 patents

Patent #TitleCo-InventorsDate
7230140 Perfluoropolyether derivative Takashi Okazoe, Kazuya Oharu, Shu-zhong Wang, Koichi Murata, Kengo Kawahara 2007-06-12
7161025 Method for producing a fluorinated ester compound Takashi Okazoe, Kunio Watanabe, Shin Tatematsu, Koichi Yanase, Yasuhiro Suzuki 2007-01-09
7105697 Process for producing a fluorine atom-containing sulfonyl fluoride compound Masahiro Ito, Kunio Watanabe, Takashi Okazoe, Isamu Kaneko 2006-09-12
7053238 Process for producing fluorinated polyvalent carbonyl compound Takashi Okazoe, Kunio Watanabe, Masahiro Ito, Shin Tatematsu 2006-05-30
7034179 Method for producing a fluorinated ester compound Takashi Okazoe, Kunio Watanabe, Shin Tatematsu, Koichi Yanase, Yasuhiro Suzuki 2006-04-25
6969776 Process for producing fluorinated ketone Takashi Okazoe, Kunio Watanabe, Masahiro Ito, Shin Tatematsu, Hirokazu Takagi 2005-11-29
6956138 Method for producing a fluorine-containing compound Takashi Okazoe, Kunio Watanabe, Shin Tatematsu, Masahiro Ito, Masao Iwaya +1 more 2005-10-18
6919480 Processes for the preparation of fluorinated acyl fluorides and fluorinated vinyl ethers Takashi Okazoe, Kunio Watanabe, Masahiro Ito, Shin Tatematsu 2005-07-19
6894187 Method for producing a fluorine-containing compound Takashi Okazoe, Kunio Watanabe, Shin Tatematsu, Masahiro Ito, Masao Iwaya +1 more 2005-05-17
6858752 Process for producing fluorinated polyvalent carbonyl compound Takashi Okazoe, Kunio Watanabe, Masahiro Ito, Shin Tatematsu 2005-02-22
6833477 Process for producing a vic-dichloro acid fluoride Takashi Okazoe, Kunio Watanabe, Masahiro Ito, Shin Tatematsu 2004-12-21
6803488 Process for producing fluorinated ketone Takashi Okazoe, Kunio Watanabe, Masahiro Ito, Shin Tatematsu, Hirokazu Takagi 2004-10-12
6790982 Process for producing a fluorine atom-containing sulfonyl fluoride compound Masahiro Ito, Kunio Watanabe, Takashi Okazoe, Isamu Kaneko 2004-09-14
6747174 Processes for the preparation of fluorinated acyl fluorides and fluorinated vinyl ethers Takashi Okazoe, Kunio Watanabe, Masahiro Ito, Shin Tatematsu 2004-06-08