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

Kozo Watanabe

HIHitachi: 15 patents #2,636 of 28,497Top 10%
HCHitachi Ulsi Systems Co.: 15 patents #20 of 867Top 3%
RTRenesas Technology: 11 patents #212 of 3,337Top 7%
PAPanasonic: 10 patents #2,582 of 21,108Top 15%
YKYoshida Kogyo K.K.: 9 patents #35 of 468Top 8%
RERenesas Electronics: 8 patents #458 of 4,529Top 15%
YKYkk: 5 patents #138 of 845Top 20%
Kawasaki: 4 patents #556 of 2,943Top 20%
SISumitomo Metal Industries: 2 patents #334 of 1,462Top 25%
SISumitomo Heavy Industries: 2 patents #252 of 917Top 30%
HIHitchi: 1 patents #1 of 56Top 2%
EMElpida Memory: 1 patents #419 of 692Top 65%
Overall (All Time): #32,914 of 4,157,543Top 1%
66 Patents All Time

Issued Patents All Time

Showing 51–66 of 66 patents

Patent #TitleCo-InventorsDate
5057721 Level shift circuit for controlling a driving circuit Hideki Miyazaki, Akihiko Kanouda, Kenichi Onda, Yasuo Matsuda 1991-10-15
5023394 Slide fastener chain for shielding the electromagnetic wave Yasuhiko Sugimoto 1991-06-11
4823446 Fluid-tight slide fastener stringer Noritaka Tsubata, Koichi Tanikawa 1989-04-25
4823577 Method of feeding material to hot forging machine Yoshio Kawashima, Shunji Ogata, Masaaki Yokoyama, Masato Tomiku, Tsuneo Yamada +5 more 1989-04-25
4787140 Apparatus for attaching top end stops to a continuous slide fastener chain Yasuhiko Matsuda, Shunji Akashi 1988-11-29
4761980 Method of feeding material to hot forging machine Yoshio Kawashima, Shunji Ogata, Masaaki Yokoyama, Masato Tomiku, Tsuneo Yamada +5 more 1988-08-09
4744133 Fluid-tight slide fastener stringer Noritaka Tsubata, Koichi Tanikawa 1988-05-17
4728467 Inner air vent systems for float chambers in carburetors Tomozo Nakagawa, Naotake Nii 1988-03-01
4718290 Pinion shift starter for engines Nobuyoshi Murata 1988-01-12
4711020 Top end-stop attaching machine with improved top end-stop supplying apparatus Akiyoshi Kando, Yoshiyuki Horita 1987-12-08
4688529 Lubricating system for horizontal cylinder overhead valve engine Takashi Mitadera, Tetsuaki Shirai, Tomozo Nakagawa, Naotake Nii 1987-08-25
4665679 Apparatus for binding elongate products 1987-05-19
4610124 Method of bundling elongate articles Masashi Kawada 1986-09-09
4570422 Apparatus for bundling elongate articles Masashi Kawada, Yozo Okada 1986-02-18
4548167 Suction air passage of internal combustion engine Shinichi Tamba, Masato Sato, Masanobu Yamashita 1985-10-22
4540619 Thermally shrinkable labeling band 1985-09-10