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

Tetsuo Kobayashi

Hitachi: 15 patents #2,636 of 28,497Top 10%
HKHamamatsu Photonics K.K.: 9 patents #234 of 1,436Top 20%
KUKyoto University: 9 patents #34 of 1,688Top 3%
Sony: 7 patents #6,034 of 25,231Top 25%
Canon: 6 patents #8,497 of 19,416Top 45%
KOKomatsu: 4 patents #453 of 2,087Top 25%
RKRikagaku Kenkyusho: 3 patents #17 of 207Top 9%
SUSubaru: 2 patents #413 of 1,436Top 30%
HCHidan Co.: 2 patents #5 of 17Top 30%
Mitsubishi Electric: 2 patents #11,187 of 25,717Top 45%
Nissan Motor Co.: 2 patents #3,090 of 8,689Top 40%
SCShinko-Pfaudler Company: 1 patents #6 of 19Top 35%
SUSubaru: 1 patents #819 of 1,684Top 50%
SCSumitomo Osaka Cement Co.: 1 patents #199 of 327Top 65%
NSNippon Cable System: 1 patents #25 of 90Top 30%
Nec: 1 patents #7,889 of 14,502Top 55%
Kyoto, NJ: #4 of 8 inventorsTop 50%
Overall (All Time): #42,516 of 4,157,543Top 2%
57 Patents All Time

Issued Patents All Time

Showing 51–57 of 57 patents

Patent #TitleCo-InventorsDate
4791719 Method of manufacturing a thin-film magnetic head Yukihisa Tsukada, Shinji Narishige, Shinichi Hara 1988-12-20
4783711 Magnetoresistive sensor having magnetic shields of ferrite Masahiro Kitada, Hideo Tanabe, Noboru Shimizu, Hitoshi Nakamura, Kazuhiro Momata +2 more 1988-11-08
4749439 Method for manufacturing thin film magnetic head Sadanori Nagaike 1988-06-07
4592801 Method of patterning thin film Shinichi Hara, Shinji Narishige, Tsuneo Yoshinari, Mistuo Sato, Katsuya Mitsuoka +2 more 1986-06-03
4550353 Thin-film magnetic head and method for fabricating the same Osamu Hirai, Shunichiro Kuwatsuka, Saburo Suzuki 1985-10-29
4345863 Nut control device Haruo Mochida 1982-08-24
4326617 Clearance adjusting device Haruo Mochida 1982-04-27