Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Yutaka Kato — 98 Patents

OMOmron: 43 patents #10 of 3,089Top 1%
Canon: 14 patents #4,747 of 19,416Top 25%
Kabushiki Kaisha Toshiba: 7 patents #4,294 of 21,451Top 25%
MCMax Co.: 6 patents #71 of 321Top 25%
TSToshiba Medical Systems: 5 patents #256 of 1,088Top 25%
OCOlympus Optical Co.: 4 patents #789 of 2,334Top 35%
NCNihon Nohyaku Co.: 3 patents #68 of 243Top 30%
SAShowa Aluminum: 3 patents #52 of 253Top 25%
ICIshikawa Gasket Co.: 3 patents #16 of 48Top 35%
SCSoda Aromatic Co.: 2 patents #10 of 36Top 30%
KSKomatsu Shisakusho: 2 patents #235 of 885Top 30%
Panasonic: 1 patents #13,264 of 21,108Top 65%
CCCitizen Watch Co.: 1 patents #668 of 1,225Top 55%
EBEbara: 1 patents #1,014 of 1,611Top 65%
HDHitachi Power Semiconductor Device: 1 patents #36 of 79Top 50%
IIInoue-Japax Research Incorporated: 1 patents #9 of 14Top 65%
MCMochida Pharmaceutical Co.: 1 patents #173 of 309Top 60%
NCNippon Light Metal Company: 1 patents #203 of 499Top 45%
NLNippon Mining Company Limited: 1 patents #97 of 262Top 40%
OEOmron Tateisi Electronics: 1 patents #264 of 599Top 45%
SCSumitomo Metal Mining Co.: 1 patents #385 of 736Top 55%
Aisin Seiki Kabushiki Kaisha: 1 patents #2,094 of 3,782Top 60%
Overall (All Time): #15,002 of 4,157,543Top 1%
98 Patents All Time

Issued Patents All Time

Showing 76–98 of 98 patents

Patent #TitleCo-InventorsDate
6387938 Benzimidazole derivatives Kiyoshi Mizuguchi, Nobuo Ohzawa, Yasuhiro Nakai, Kazuyuki Matsuura, Shuhei Ohnishi +1 more 2002-05-14
6322084 Metal gasket with bore ring Yoshio Yamada 2001-11-27
6057372 Antibacterial agents and cosmetics and clothing containing the same Akio Nobuhiro, Akio Hasebe 2000-05-02
D380832 Radio frequency coil for magnetic resonance imaging apparatus Masao Isshiki 1997-07-08
5621825 Image processor, image processing method and apparatus applying same Toshimichi Masaki 1997-04-15
5490508 Magnetic resonance imaging diagnosis apparatus having mat for use with small body 1996-02-13
5478170 Controlling apparatus for excavator Tadayuki Hanamoto, Norio Takahashi 1995-12-26
4948426 Sintering metal powder and a process for making a sintered metal product Yoshio Kijima 1990-08-14
4896963 Automatic analyzer 1990-01-30
4860565 Process for preparing hollow aluminum extrudates for use in vacuum Eizo Isoyama 1989-08-29
4828937 Process for producing hollow extrudate for use in vacuum Kenji Tsukamoto, Eizo Isoyama 1989-05-09
4727033 Analyzing apparatus and method for immunological agglutination reactions Kazuo Hijikata, Hajime Sakuma, Hidehiko Yamamoto 1988-02-23
4713016 Jack for telephone set 1987-12-15
4615747 Process for producing aluminum material for use in vacuum Kenji Tsukamoto, Eizo Isoyama 1986-10-07
4542246 Electrical insulating oil having high oxidation stability and method for production thereof Atsushi Matsunaga, Sampo Kusayanagi, Masamitu Takano 1985-09-17
4522451 Track-type vehicle undercarriage Yukio Tamura, Masashi Kaminishi 1985-06-11
4512936 Aeration apparatus Masao Oshima, Mitsuhiko Ogasawara, Osamu Futamura 1985-04-23
4473018 Needle bar selection device for a multiple needle sewing machine Hiroshi Shimoda 1984-09-25
4433325 Optical vehicle detection system Ryohei Tanaka, Akinobu Kitamura, Takaaki Odake 1984-02-21
4338033 Densitometer Ryo Fujimori 1982-07-06
4332472 Automatic cataphoresis apparatus Hirohiko Tokitoh, Tomohiro Kitahara, Hiromi Ito 1982-06-01
4276629 Solar battery timepiece Osamu Matsumura, Tsunetoshi Sekiguchi, Ryo Namiki 1981-06-30
4204767 Automatic cataphoresis apparatus Hirohiko Tokitoh, Tomohiro Kitahara, Hiromi Ito 1980-05-27