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USPTO Patent Rankings Data through Dec 31, 2025
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Kenji Ishida — 58 Patents

KOKonica: 8 patents #304 of 1,958Top 20%
Yamaha: 7 patents #373 of 2,001Top 20%
Mitsubishi Electric: 7 patents #4,301 of 25,717Top 20%
Denso: 5 patents #2,617 of 11,792Top 25%
Nec: 4 patents #3,401 of 14,502Top 25%
NCNippon Gasket Co.: 4 patents #11 of 56Top 20%
Toyota: 3 patents #8,470 of 26,838Top 35%
Ngk Spark Plug Co.: 3 patents #540 of 1,594Top 35%
NINikon: 2 patents #1,269 of 2,493Top 55%
UKUshio Denki Kabushiki Kaisha: 2 patents #199 of 583Top 35%
Hitachi: 2 patents #13,405 of 28,497Top 50%
Kabushiki Kaisha Toshiba: 2 patents #10,039 of 21,451Top 50%
Aisin Seiki Kabushiki Kaisha: 2 patents #1,427 of 3,782Top 40%
HEHercofina: 1 patents #3 of 16Top 20%
KMKonica Minolta: 1 patents #1,862 of 2,718Top 70%
NSNec Display Solutions: 1 patents #138 of 237Top 60%
AIAisin: 1 patents #310 of 1,000Top 35%
SCSeikosha Co.: 1 patents #184 of 312Top 60%
TLTeijin Fibers Limited: 1 patents #22 of 77Top 30%
TLTeijin Limited: 1 patents #850 of 1,631Top 55%
Sony: 1 patents #17,321 of 25,231Top 70%
Overall (All Time): #41,319 of 4,157,543Top 1%
58 Patents All Time
Kenji Ishida has been granted 58 US patents while listed as an inventor at Konica. The first was granted in 1983 and the most recent in August 2025. Kenji Ishida ranks #41,319 of 4,157,543 US inventors in our database (top 0.99%). Patent records list Kenji Ishida in Tokyo, MH, JP.

Issued Patents All Time

Showing 1–25 of 58 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12379304 Particle analyzer, particle analysis method, and optical measurement device Takeshi Hatakeyama, Satoshi Nagae, Masanobu Nonaka, Naomichi Kikuchi, Takashi Kato 2025-08-05
12311504 Holding mechanism and exposure apparatus Takeshi Kitamura 2025-05-27
12055199 Vehicle drive transmission device Fumiaki Kuribayashi, Yuki HABARA, Eiji Kida 2024-08-06
11976493 Vehicle, and parking facility for same — 2024-05-07
11914125 Zoom lens, optical apparatus and method for manufacturing the zoom lens Atsushi Suzuki, Saburo Masugi 2024-02-27 $28,450,000
10816781 Zoom lens, optical apparatus and method for manufacturing the zoom lens Atsushi Suzuki, Saburo Masugi 2020-10-27
10773177 Transformable robot — 2020-09-15
10587850 Projector and method for controlling light source for projector Tohru Kataoka 2020-03-10
10317049 Light irradiation device Takahiro Inoue, Takeo Matsushima, Toshihiro Nakajima, Junichi Kinoshita 2019-06-11
9970875 Sensor chip for SPFS measurement, SPFS measurement method using sensor chip for SPFS measurement, and SPFS measurement device equipped with sensor chip for SPFS measurement Masataka Matsuo 2018-05-15
9040826 Cable Fumihito Oka, Hirotaka Eshima, Takafumi Kai, Ryoji Mizutani 2015-05-26 $1,356,000
D728252 Air conditioner — 2015-05-05
D727045 Air conditioner Takayuki Nishiguchi, Azumi Shimada 2015-04-21
8803378 Motor generator for vehicle technical field Tomoka Sonohara, Hiroaki Urano, Yasuji Taketsuna, Satoshi Murata, Yasuaki Tahara 2014-08-12 $1,125,000
8653708 Stator Eiji Yamada 2014-02-18 $939,000
D690801 Air conditioner So Nakai, Yuki Sakai, Toshiaki Yoshikawa, Masayuki Oishi 2013-10-01
D683075 Hand dryer Hiroyuki Kato, Yuki Tanaka 2013-05-21
8433095 Drowsiness detector Satori Hachisuka 2013-04-30
D664299 Hand dryer — 2012-07-24
8188642 Spark plug for internal combustion engine Hiroaki Kuki, Yuichi Yamada 2012-05-29
8045766 Device, program, and method for determining sleepiness Kahori Uchiyama, Teiyuu Kimura, Noriyuki Ozaki 2011-10-25
7948387 Drowsiness determination apparatus, program, and method Kahori Uchiyama 2011-05-24
7821409 Drowsiness alarm apparatus and program — 2010-10-26
D623281 Air conditioner Shinji Yamana, Hiroyuki Kato 2010-09-07
D621921 Air conditioner Shinji Yamana, Hiroyuki Kato 2010-08-17

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Kai Ma58
Luc Heiligenstein58
Sriram Sethuraman58
Duy T. Nguyen58
Raymond P. Goodrich, Jr.58
Nikhil Marathe58
Yuki Mori58
Xiaodong Zhao58