Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
SK

Sadao Kawamura — 7 Patents

DCDan Co.: 2 patents #3 of 12Top 25%
TTThe Ritsumeikan Trust: 2 patents #12 of 141Top 9%
KSKabushiki Kaisha Showa Seisakusho: 1 patents #9 of 45Top 20%
OMOmron: 1 patents #1,808 of 3,089Top 60%
OCOmron Healthcare Co.: 1 patents #324 of 475Top 70%
SCShowa Manufacturing Co.: 1 patents #2 of 22Top 10%
Moriyama, JP: #429 of 2,577 inventorsTop 20%
Overall (All Time): #680,018 of 4,157,543Top 20%
7 Patents All Time
Sadao Kawamura has been granted 7 US patents while listed as an inventor at Dan Co.. The first was granted in 1983 and the most recent in October 2020. Sadao Kawamura ranks #680,018 of 4,157,543 US inventors in our database (top 16.4%). Patent records list Sadao Kawamura in Moriyama, JP.

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
10816417 Force detector Minoru Taniguchi, Chisato Tawara, Masao Shimizu, Tsuyoshi Hamaguchi, Hye Jong Kim +1 more 2020-10-27
9616573 Robot control apparatus, robot control method, program, recording medium and robot system Hiroyuki Onishi 2017-04-11
6668740 Method and apparatus for linking plain knitted fabrics Akira Isii, Takahiro Wada, Naomasa Ochi, Kimio Takeda 2003-12-30
6397121 Process and apparatus for detecting loop stitch of tubular knitted fabric, and apparatus for linking tubular knitted fabric Akira Ishii, Takahiro Wada, Takuya Fukitsuke, Yushi Takeuchi 2002-05-28
4964625 Hydraulic damper with oil lock mechanism 1990-10-23
4834223 Valve structure for telescopic hydraulic damper Kanau Iwashita, Tomeo Fuse, Shuichi Kawahara, Naoyuki Sataka, Hidekuni Ito 1989-05-30
4422661 Height adjusting system for motorcycle 1983-12-27