YO

Yoshio Okamoto

HI Hitachi: 45 patents #373 of 28,497Top 2%
DI Daicel Chemical Industries: 39 patents #5 of 893Top 1%
HC Hitachi Car Engineering Co.: 19 patents #19 of 465Top 5%
HS Hitachi Automotive Systems: 11 patents #120 of 1,636Top 8%
FL Fujitsu Takamisawa Component Limited: 7 patents #9 of 113Top 8%
HC Hitachi Automotive Engineering Co.: 5 patents #22 of 314Top 8%
DA Daicel: 4 patents #85 of 523Top 20%
IC Idemitsu Kosan Co.: 4 patents #327 of 1,237Top 30%
NU National University Corporation Nagoya University: 4 patents #37 of 782Top 5%
DC Dainippon Screen Mfg. Co.: 4 patents #193 of 977Top 20%
AC Asahi Kasei Kogyo Co.: 2 patents #303 of 1,395Top 25%
Fujitsu Limited: 2 patents #10,930 of 24,456Top 45%
HS Hitachi-Lg Data Storage: 2 patents #125 of 294Top 45%
KA Kao: 2 patents #1,388 of 3,221Top 45%
HI Hiatchi: 1 patents #1 of 84Top 2%
KS Kobe Steel: 1 patents #857 of 2,031Top 45%
TC Takamisawa Electric Co.: 1 patents #14 of 30Top 50%
MC Murata Manufacturing Co.: 1 patents #3,462 of 5,295Top 70%
NC Nakano Vinegar Co.: 1 patents #24 of 63Top 40%
FL Fujitsu Component Limited: 1 patents #204 of 281Top 75%
Nichia: 1 patents #1,005 of 1,531Top 70%
NC Nippon Yakin Kogyo Co.: 1 patents #31 of 74Top 45%
NI Nissan Chemical Industries: 1 patents #655 of 1,150Top 60%
SC Stanley Electric Co.: 1 patents #550 of 1,072Top 55%
HC Hitachi Media Electronics Co.: 1 patents #130 of 214Top 65%
Overall (All Time): #8,022 of 4,157,543Top 1%
133
Patents All Time

Issued Patents All Time

Showing 26–50 of 133 patents

Patent #TitleCo-InventorsDate
8124712 Filler for optical isomer separation Chiyo Yamamoto, Tomoyuki Ikai, Masami Kamigaito 2012-02-28
8053543 Filler for optical isomer separation Chiyo Yamamoto, Tomoyuki Ikai, Masami Kamigaito 2011-11-08
7938962 Separating agent for enantiomeric isomers and method of producing the same Chiyo Yamamoto, Takateru Kubota 2011-05-10
7772382 Chitosan derivative and method of producing same Chiyo Yamamoto, Masami Kamigaito 2010-08-10
7772153 Separating agent for enantiomeric isomers Chiyo Yamamoto 2010-08-10
7745616 Bead for enantiomeric isomer resolution and process for producing the same Chiyo Yamamoto, Tomoyuki Ikai, Masami Kamigaito 2010-06-29
7740758 Separating agent including polysaccharide derivative having a polycyclic structure Chiyo Yamamoto 2010-06-22
7703707 Fuel injector Yoshihito Yasukawa, Hiroshi Yamada, Nobuaki Kobayashi, Satoshi Hashimoto 2010-04-27
7683167 Separating agent for enantiomeric isomers Chiyo Yamamoto 2010-03-23
7682463 Resist stripping method and resist stripping apparatus Atsushi Okuyama, Kazumi Asada, Yuji Sugahara 2010-03-23
7591922 Substrate processing apparatus and substrate processing method 2009-09-22
7387263 Fuel injection valve of engine, fuel injection method and assembling method of the same Yoshihito Yasukawa, Noriyuki Maekawa, Takehiko Kowatari 2008-06-17
7334563 Fuel injector and in-cylinder direct-injection gasoline engine Masanori Mifuji, Tohru Ishikawa, Atsushi Sekine 2008-02-26
7323101 Separating agent for optical isomer and method for preparation thereof Chiyo Yamamoto, Takateru Kubota 2008-01-29
7264181 Fuel injection valve with restriction wall, and internal combustion engine equipped therewith Motoyuki Abe, Yuzo Kadomukai, Makoto Yamakado, Ayumu Miyajima, Hiromasa Kubo +2 more 2007-09-04
7231902 Fuel injection valve and internal combustion engine mounting the same Ayumu Miyajima, Yuzo Kadomukai, Shigenori Togashi, Kiyoshi Amo, Makoto Yamakado +3 more 2007-06-19
7223334 Separating agent for enantiomeric isomers Chiyo Yamamoto, Takateru Kubota 2007-05-29
7163162 Fuel-injection valve Masahiro Tsuchiya, Tosuke Hirata, Tohru Ishikawa, Noriyuki Maekawa, Yoshiyuki Tanabe +4 more 2007-01-16
7156989 Separating agent including polysaccharide derivative having a polycyclic structure Chiyo Yamamoto 2007-01-02
6972651 Switch operable under a predetermined condition, external magnetic field generating unit, combination of such a switch and an external magnetic field generating unit and electronic apparatus incorporating the same Shigemitsu Aoki, Nobuyoshi Shimizu, Hirofumi Saso, Chiaki Maeno, Noboru Fujii +1 more 2005-12-06
6956092 Poly (meth) acrylamide with a high stereoregularity and process for producing the same Yutaka Isobe 2005-10-18
6929196 Fuel injection valve and internal combustion engine mounting the same Shigenori Togashi, Makoto Yamakado, Masahiro Souma, Hiromasa Kubo 2005-08-16
6915968 Fuel injector Motoyuki Abe, Makoto Yamakado, Tohru Ishikawa, Shuichi Shimizu 2005-07-12
6878303 Substrate processing apparatus and substrate processing method 2005-04-12
6854448 Fuel injection valve and fuel injection system Yuzo Kadomukai, Motoyuki Abe, Ayumu Miyajima, Masami Nagano 2005-02-15