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

Seiji Ito

TMTohnichi Mfg.Co.: 8 patents #1 of 18Top 6%
YAYazaki: 4 patents #1,239 of 3,427Top 40%
KTKabushiki Kaisha Toshiba: 4 patents #6,684 of 21,451Top 35%
TLTeijin Limited: 2 patents #572 of 1,631Top 40%
Bridgestone: 2 patents #1,066 of 2,860Top 40%
OCOptnics Precision Co.: 2 patents #3 of 10Top 30%
TCToyoda Gosei Co.: 2 patents #900 of 2,296Top 40%
SHShimadzu: 2 patents #805 of 2,007Top 45%
TLTeijin Fibers Limited: 2 patents #10 of 77Top 15%
TSToshiba Infrastructure Systems & Solutions: 1 patents #186 of 424Top 45%
SOSony: 1 patents #17,262 of 25,231Top 70%
STShibaura Institute Of Technology: 1 patents #13 of 68Top 20%
FWFts Welding: 1 patents #12 of 67Top 20%
NSNippon Steel: 1 patents #2,111 of 4,423Top 50%
NMNippon Steel & Sumitomo Metal: 1 patents #786 of 1,491Top 55%
NMNitta Moore: 1 patents #8 of 19Top 45%
APAichi Prefecture: 1 patents #9 of 31Top 30%
Sumitomo Electric Industries: 1 patents #13,249 of 21,551Top 65%
Ebeye: #62 of 4,528 inventorsTop 2%
Overall (All Time): #97,843 of 4,157,543Top 3%
35 Patents All Time

Issued Patents All Time

Showing 26–35 of 35 patents

Patent #TitleCo-InventorsDate
6124043 Biaxially oriented film Ryoji Tsukamoto, Mitsuru Teramoto, Shinya Watanabe, Koji Furuya, Shinichi Kawai +1 more 2000-09-26
6074487 Unit for vaporizing liquid materials Naoki Yoshioka 2000-06-13
6048627 Biaxially oriented polyethylene naphthalate copolymer film Ryoji Tsukamoto, Mitsuru Teramoto, Masahiko Kosuge 2000-04-11
5766703 Automobile weather strip Etsuro Mori, Hiroyasu Kozawa, Toshiyuki Tanaka 1998-06-16
5556059 Device for guiding wire harness of steering column Yuji Maeda, Chiaki Chida 1996-09-17
5367830 Roof-side weather strip for a motor vehicle Masayuki Omura 1994-11-29
5229563 Pressure cooker Mamoru Isogai, Masao Maki, Takahito Ishii, Shigeki Ueda, Satoru Kodama 1993-07-20
D313385 Automobile tire Toru Tsuda 1991-01-01
D294926 Automobile tire Hideaki Nishio 1988-03-29
4506857 Adjustable mounting for a motor on a base Takeo Hara 1985-03-26