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

Koichi Okamoto — 27 Patents

Sony: 8 patents #5,371 of 25,231Top 25%
UNUnknown: 7 patents #1,646 of 83,584Top 2%
SCScreen Holdings Co.: 4 patents #193 of 686Top 30%
TOTokin: 3 patents #30 of 278Top 15%
Nichia: 2 patents #761 of 1,531Top 50%
SCStanley Electric Co.: 2 patents #339 of 1,072Top 35%
KOKomatsu: 2 patents #861 of 2,087Top 45%
SHShowa: 1 patents #167 of 337Top 50%
TCToko Co.: 1 patents #92 of 196Top 50%
HMHino Motors: 1 patents #109 of 311Top 40%
JSJfe Steel: 1 patents #825 of 1,401Top 60%
Fujitsu Limited: 1 patents #14,843 of 24,456Top 65%
MMMitsubishi Mining: 1 patents #886 of 2,247Top 40%
Caltech: 1 patents #2,143 of 4,321Top 50%
Overall (All Time): #142,059 of 4,157,543Top 4%
27 Patents All Time
Koichi Okamoto has been granted 27 US patents while listed as an inventor at Unknown. The first was granted in 1987 and the most recent in December 2025. Koichi Okamoto ranks #142,059 of 4,157,543 US inventors in our database (top 3.4%). Patent records list Koichi Okamoto in Kyoto, CA, JP.

Issued Patents All Time

Showing 1–25 of 27 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12500391 Laser drive apparatus, pulse width adjusting method, and sensing module Tatsuya Masuda, Mituharu Tabata 2025-12-16
12444904 Light source device and electronic device Tatsuya Masuda, Mituharu Tabata, Yasuo Oba 2025-10-14
12337289 Chemical liquid preparation device, and substrate processing device Hajime NISHIDE, Takashi Izuta, Takatoshi Hayashi, Katsuhiro Fukui, Kazuhiro Fujita +4 more 2025-06-24
12064739 Chemical liquid preparation device, and substrate processing device Hajime NISHIDE, Takashi Izuta, Takatoshi Hayashi, Katsuhiro Fukui, Kazuhiro Fujita +4 more 2024-08-20
12030122 Method of manufacturing soft magnetic dust core Naomichi Nakamura, Makoto Nakaseko, Takuya TAKASHITA, Mineo Muraki, Hoshiaki Terao +7 more 2024-07-09 $813,000
11672059 Light source device and electronic device Takashi Masuda, Mitsushi Tabata, Yasuo Oba 2023-06-06 $689,000
11439967 Chemical liquid preparation method, chemical liquid preparation device, and substrate processing device Hajime NISHIDE, Takashi Izuta, Takatoshi Hayashi, Katsuhiro Fukui, Kazuhiro Fujita +4 more 2022-09-13
10335837 Substrate processing apparatus Junichi Ishii 2019-07-02
D836784 Sacrum pressing tool 2018-12-25
10051212 Solid state imaging apparatus, signal reading method, and electronic apparatus Takayuki Goto, Hiroaki Ebihara, Rei Yoshikawa 2018-08-14 $820,000
9661242 Solid state imaging apparatus, signal reading method, and electronic apparatus Takayuki Goto, Hiroaki Ebihara, Rei Yoshikawa 2017-05-23 $338,000
9648267 Image sensor and control method for image sensor Rei Yoshikawa, Hiroaki Ebihara 2017-05-09 $437,000
9288411 Image sensor and control method for image sensor Rei Yoshikawa, Hiroaki Ebihara 2016-03-15 $399,000
8833507 Motor-driven power steering apparatus Shinsuke Sekikawa, Masakazu Shinozaki, Naomasa WATANABE, Tsukasa Suzuki, Masanobu Miyazaki 2014-09-16
8717563 Light scattering type particle detector using scattered light of surface plasmon resonance photons Takahiro Matsumoto, Fumio Kubo, Yasuyuki Kawakami 2014-05-06
8564186 Light source apparatus having a solid light source element and a phosphor Yasuyuki Kawakami, Takahiro Matsumoto, Yoshiaki Yasuda 2013-10-22
7983828 Automatic brake control device Toshiki Ezoe, Shuji Narada, Naoshi Ichinose, Hirokazu Okuyama 2011-07-19
7348600 Nitride semiconductor device, and its fabrication process Yukio Narukawa, Isamu Niki, Axel Scherer, Yoichi Kawakami, Mitsuru Funato +1 more 2008-03-25
6988591 Mine transportation management system and method using separate ore vessels and transport vehicles managed via communication signals Kyouji Uranaka, Satoshi Ogawa, Takao Nagai 2006-01-24
6965954 Data playing system, transmitting and receiving apparatus, and bus conversion unit 2005-11-15 $575,000
6876009 Nitride semiconductor device and a process of manufacturing the same Yukio Narukawa, Isamu Niki, Axel Scherer, Yoichi Kawakami, Mitsuru Funato +1 more 2005-04-05
6789639 Carrier vehicle Kyouji Uranaka, Satoshi Ogawa, Takao Nagai 2004-09-14
6629762 Electric field sensor using liquid crystal and three-dimensional movie player/recorder using the same Yoichi Kawakami 2003-10-07
5998909 Piezoelectric transformer Katsunori Kumasaka, Masafumi KATSUNO, Yoshiaki Fuda 1999-12-07
5847490 Piezoelectric transformer wrapped by wrapping member of soft insulating sheet material Katsunori Kumasaka, Masafumi KATSUNO, Yoshiaki Fuda 1998-12-08