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

Naoki Kawaguchi

OMOmron: 34 patents #17 of 3,089Top 1%
Sony: 9 patents #4,874 of 25,231Top 20%
FLFujitsu General Limited: 2 patents #129 of 325Top 40%
KMKawasaki Motors: 1 patents #91 of 203Top 45%
Overall (All Time): #64,085 of 4,157,543Top 2%
45 Patents All Time

Issued Patents All Time

Showing 26–45 of 45 patents

Patent #TitleCo-InventorsDate
11450496 Relay Hiroyuki Harimochi, Ryota Minowa, Shinichi Ogawa, Kohei OTSUKA, Hiroyuki Iwasaka +1 more 2022-09-20
11450498 Relay Kohei OTSUKA, Ryota Minowa, Hiroyuki Iwasaka, Yasuo Hayashida, Shingo Mori 2022-09-20
11373830 Electromagnetic relay to ensure stable energization even when contact is dissolved Ryota Minowa, Hiroyuki Harimochi, Shinichi Ogawa, Kohei OTSUKA, Hiroyuki Iwasaka 2022-06-28
11348750 Relay Ryota Minowa, Yasuo Hayashida, Kohei OTSUKA, Shingo Mori, Hiroyuki Iwasaka 2022-05-31
11295918 Electromagnetic relay Ryota Minowa, Hiroyuki Harimochi, Shinichi Ogawa, Kohei OTSUKA, Hiroyuki Iwasaka 2022-04-05
11289296 Contact device and relay using the same Ryota Minowa, Hiroyuki Iwasaka 2022-03-29
11276537 Relay Hiroyuki Harimochi, Ryota Minowa, Shinichi Ogawa, Kohei OTSUKA, Hiroyuki Iwasaka +1 more 2022-03-15
11170957 Seal structure of electronic device, electronic device provided with seal structure, and manufacturing method of electronic device Tatsuro Kitagawa, Norio Fukui, Ryoichi Kido 2021-11-09
11101092 Electromagnetic relay Ryota Minowa, Shingo Mori 2021-08-24
10964503 Relay Ryota Minowa, Hiroyuki Iwasaka, Yasuo Hayashida, Shingo Mori 2021-03-30
8319459 Synchronous motor control method Satoshi Ichiki 2012-11-27
7839114 Phase detection method, phase detecting apparatus, synchronous-motor control method, and synchronous motor controller Satoshi Ichiki 2010-11-23
6356304 Method for processing video signal and apparatus for processing video signal Shuji Shimizu, Makibi Nakamura 2002-03-12
6229568 Automatic focus control method and apparatus Makibi Nakamura 2001-05-08
6163341 Portable video camera with adjustable motor driving signals for optimizing power consumption Yoshikazu Ohchi 2000-12-19
6034726 Image generating device having automatic focus correction based on a detected change in an iris position or in a zoom lens position Katsuaki Hirota 2000-03-07
6031351 Driving control circuit, driving control method and electronic equipment 2000-02-29
5638122 Video camera apparatus and automatic focusing circuit Reiko Torii 1997-06-10
5539462 Camera auto focus system with detector circuits for generating evaluation functions Chuen-Chien Lee, Teruyoshi Komuro, Reiko Torii 1996-07-23
5416518 Camera auto focus system Chuen-Chien Lee, Teruyoshi Komuro, Reiko Torii 1995-05-16