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

Keisuke Harada — 31 Patents

FUFujifilm: 14 patents #627 of 4,519Top 15%
Fujitsu Limited: 8 patents #3,989 of 24,456Top 20%
JDJapan Display: 4 patents #580 of 1,204Top 50%
Panasonic: 4 patents #6,180 of 21,108Top 30%
ICIkeda Electric Co.: 1 patents #7 of 16Top 45%
Kabushiki Kaisha Toshiba: 1 patents #13,537 of 21,451Top 65%
Overall (All Time): #114,822 of 4,157,543Top 3%
31 Patents All Time

Issued Patents All Time

Showing 26–31 of 31 patents

Patent #TitleCo-InventorsDate
8148884 Electrodeless discharge lamp Hidenori Kakehashi, Hiroshi Miyasaki 2012-04-03
7884546 Electrodeless discharge lamp apparatus and lighting fixture with the electrodeless discharge lamp apparatus Hiroshi Ogasawara, Hiroshi Miyasaki, Hidenori Kakehashi, Yoshinobu Shibata 2011-02-08
7728500 Electrodeless discharge lamp Hiroshi Ogasawara, Hidenori Kakehashi, Ryusuke Ura, Hiroshi Miyasaki, Yoshinobu Shibata +2 more 2010-06-01
7492098 Coil assembly body structure for electrodeless discharge lamp Hidenori Kakehashi, Shohei Yamamoto, Koji Hiramatsu, Shinji Hizuma, Yoshinobu Shibata 2009-02-17
7136584 Optical output power automatic attenuation circuit for optical communication apparatus Yoshitaka Eguchi, Satoru Miyazaki, Hiroshi Oikawa 2006-11-14
6115435 Soft decision method and receiver Masami Aizawa, Rumi Tanabe 2000-09-05