Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
KO

Koichi Okada

NTNtn: 30 patents #31 of 1,364Top 3%
Canon: 14 patents #4,747 of 19,416Top 25%
HIHitachi: 13 patents #3,142 of 28,497Top 15%
Fujitsu Limited: 9 patents #3,538 of 24,456Top 15%
KCKuraray Co.: 7 patents #214 of 1,827Top 15%
KDKuraray Noritake Dental: 7 patents #10 of 78Top 15%
KMKuraray Medical: 3 patents #2 of 36Top 6%
PAPanasonic: 3 patents #7,617 of 21,108Top 40%
FUFujifilm: 3 patents #1,989 of 4,519Top 45%
JCJgc Catalysts And Chemicals: 3 patents #37 of 139Top 30%
Nichia: 3 patents #567 of 1,531Top 40%
NINgk Insulators: 1 patents #1,271 of 2,083Top 65%
NENec: 1 patents #7,889 of 14,502Top 55%
DIDai Nippon Insatsu: 1 patents #197 of 371Top 55%
NCNtn Toyo Bearing Co.: 1 patents #30 of 90Top 35%
PCPegasus Sewing Machine Mfg. Co.: 1 patents #29 of 65Top 45%
SCSanyo Electric Co.: 1 patents #3,644 of 6,347Top 60%
SOSortec: 1 patents #5 of 9Top 60%
SSSumitomo Wiring Systems: 1 patents #1,603 of 2,615Top 65%
TIToray Industries: 1 patents #2,000 of 3,690Top 55%
Iwata, JP: #2 of 782 inventorsTop 1%
Overall (All Time): #12,962 of 4,157,543Top 1%
106 Patents All Time

Issued Patents All Time

Showing 76–100 of 106 patents

Patent #TitleCo-InventorsDate
7063194 Rotation transmission device Isao Hori, Tatsuya Yamasaki, Yoshitaka Nagano 2006-06-20
7018106 Vehicle mounted bearing assembly 2006-03-28
6951463 Dental and oralogic composition Eiichi Masuhara, Yoshinori Kadoma, Junichi Yamauchi, Satoshi Yamaguchi 2005-10-04
6939901 Adhesive composition Kazumitsu Nakatsuka 2005-09-06
6892587 Rotation detecting device and wheel support bearing assembly utilizing the same Masatoshi Mizutani, Eiji Tajima, Hisashi Ohtsuki, Takayuki Norimatsu, Toru Takahashi +2 more 2005-05-17
6887920 Fillings and composite dental materials containing the fillings Junichi Ohtsuki, Hirotaka Kita, Yasujiro Ohara 2005-05-03
6879149 Wheel support bearing assembly Hisashi Ohtsuki, Akira Torii, Takayuki Norimatsu, Hiroaki Ohba, Toru Takahashi +1 more 2005-04-12
6838794 Bearing assembly with electric power generator Kenichi Iwamoto, Hiroaki Ohba 2005-01-04
6790877 Bonding compositions for dental use Kazumitsu Nakatsuka, Satoshi Imazato, Shigeyuki Ebisu, Yasuhiko Tsuchitani 2004-09-14
6755763 Vehicle driveline system with electronically controlled roller clutch assembly Shiro Goto 2004-06-29
6703734 Bearing with noncontact signal transfer mechanism Hiroyuki Hakamata 2004-03-09
6585420 Wheel support bearing assembly and anti-skid brake device using the same Hisashi Ohtsuki, Koji Sahashi, Kenichi Suzumura, Kazuhiko Hozumi, Akira Torii +2 more 2003-07-01
6458868 Organophosphorus compounds for dental polymerizable compositions Junichi Ohtsuki, Koji Takahashi, Yasuji Minami, Eiichi Terakawa, Miho Harada 2002-10-01
6446960 Sheet feeding device 2002-09-10
6355704 Bonding composition for dental use Kazumitsu Nakatsuka, Satoshi Imazato, Shigeyuki Ebisu, Yasuhiko Tsuchitani 2002-03-12
6265693 Image recording apparatus 2001-07-24
6173620 Angle potentiometer 2001-01-16
6152880 Self-diagnostic blood pressure measuring apparatus 2000-11-28
6132232 Connector locking construction for a connector receptacle of an automotive electrical connection box 2000-10-17
6123183 Rotation transmission device Kenichiro Ito, Makoto Yasui, Shiro Goto 2000-09-26
5944306 Package of thermal recording sheets and magazine Tatsuo Maeda, Nobuyuki Torisawa 1999-08-31
5325414 X-ray mask alignment method and apparatus therefor as well as X-ray mask to be used to said method and said apparatus Toshihiko Tanaka 1994-06-28
5265865 Stimulable phosphor sheet feeding and storing mechanism and stimulable phosphor sheet cassette Toshitaka Agano 1993-11-30
5192815 Dental restorative material Ikuo Omura 1993-03-09
5133810 Flexible photovoltaic device and manufacturing method thereof Masashi Morizane, Kenji Murata, Hiroshi Inoue, Yasuo Kishi 1992-07-28