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

Hiroyuki Maruyama — 73 Patents

KOKonica: 16 patents #102 of 1,958Top 6%
SESeiko Epson: 10 patents #1,850 of 7,774Top 25%
Canon: 6 patents #8,497 of 19,416Top 45%
Hitachi: 6 patents #6,582 of 28,497Top 25%
RTRenesas Technology: 6 patents #492 of 3,337Top 15%
Fujitsu Limited: 5 patents #6,029 of 24,456Top 25%
HZHitachi Zosen: 5 patents #33 of 531Top 7%
HCHitachi Ulsi Systems Co.: 5 patents #151 of 867Top 20%
KMKonica Minolta: 4 patents #503 of 1,361Top 40%
Sony: 3 patents #10,744 of 25,231Top 45%
KCKonishiroku Photo Industry Co.: 3 patents #262 of 894Top 30%
PLPfu Limited: 3 patents #122 of 478Top 30%
KMKonica Minolta: 2 patents #1,382 of 2,718Top 55%
KAKaneka: 2 patents #598 of 1,525Top 40%
RERenesas Electronics: 1 patents #2,739 of 4,529Top 65%
The Procter & Gamble: 1 patents #6,322 of 10,133Top 65%
Panasonic: 1 patents #13,264 of 21,108Top 65%
Overall (All Time): #27,122 of 4,157,543Top 1%
73 Patents All Time

Issued Patents All Time

Showing 26–50 of 73 patents

Patent #TitleCo-InventorsDate
7263314 Electrophotographic image printing apparatus Tadayuki Ueda, Toshihiro Motoi, Kenji Izumiya, Ryuji Okutomi, Satoshi Ogata 2007-08-28
7208391 Method of manufacturing a semiconductor integrated circuit device that includes forming an isolation trench around active regions and filling the trench with two insulating films Hidenori Sato, Norio Suzuki, Akira Takamatsu, Takeshi Saikawa, Katsuhiko Hotta +1 more 2007-04-24
7201016 Refrigerant supply apparatus 2007-04-10
7176121 Semiconductor device and manufacturing method thereof Kazutoshi Ohmori, Tsuyoshi Tamaru, Naohumi Ohashi, Kiyohiko Sato 2007-02-13
7084063 Fabrication method of semiconductor integrated circuit device Junji Noguchi, Shoji Asaka, Nobuhiro Konishi, Naohumi Ohashi 2006-08-01
7079172 Clock generating circuit and image-forming apparatus Kenji Izumiya, Tadayuki Ueda, Ryuji Okutomi, Eiji Nishikawa, Satoshi Ogata +1 more 2006-07-18
7074691 Method of manufacturing a semiconductor integrated circuit device that includes forming dummy patterns in an isolation region prior to filling with insulating material Hidenori Sato, Norio Suzuki, Akira Takamatsu, Takeshi Saikawa, Katsuhiko Hotta +1 more 2006-07-11
7060589 Method for manufacturing a semiconductor integrated circuit device that includes covering the bottom of an isolation trench with spin-on glass and etching back the spin-on glass to a predetermined depth Hidenori Sato, Norio Suzuki, Akira Takamatsu, Takeshi Saikawa, Katsuhiko Hotta +1 more 2006-06-13
6977759 Optical image reader Toshimitsu Kumagai 2005-12-20
6933696 Driving device and image forming device Tadayuki Ueda, Jun Onishi 2005-08-23
6911993 Color image forming apparatus using registration marks Eiji Nishikawa, Hiroyuki Arai, Toshihiro Motoi, Kenji Izumiya, Ryuji Okutomi +5 more 2005-06-28
6851616 Image forming apparatus having life information 2005-02-08
6849885 Method of producing a semiconductor integrated circuit device and the semiconductor integrated circuit device Hiroyuki Enomoto, Makoto Yoshida 2005-02-01
6839078 Image forming apparatus which changes clock frequencies in accordance with recording sheet shrinkage Kenji Izumiya, Toshihiro Motoi, Ryuji Okutomi, Shinobu Kishi, Satoshi Ogata +3 more 2005-01-04
6833331 Method of manufacturing semiconductor integrated circuit device having insulating film formed from liquid substance containing polymer of silicon, oxygen, and hydrogen Masayoshi Saito, Katsuhiko Hotta, Masayoshi Hirasawa, Masayuki Kojima, Hiroyuki Uchiyama +1 more 2004-12-21
6799834 Method for manufacturing an electrostatic actuator Masahiro Fujii, Kazuhiko Sato, Koji Kitahara, Tomohiro Makigaki, Shigeo Nojima +1 more 2004-10-05
6801725 Image forming apparatus Tadayuki Ueda, Toshihiro Motoi, Satoshi Ogata, Ryuji Okutomi, Shinobu Kishi +3 more 2004-10-05
6762516 Electromagnetic actuator and exposure apparatus having the same 2004-07-13
6725005 Drive control method of photoreceptor drum and image forming apparatus Tadayuki Ueda, Kenji Izumiya, Ryuji Okutomi, Shinobu Kishi, Satoshi Ogata +2 more 2004-04-20
6723631 Fabrication method of semiconductor integrated circuit device Junji Noguchi, Shoji Asaka, Nobuhiro Konishi, Naohumi Ohashi 2004-04-20
6724161 Image forming apparatus and control method of motor therein Tadayuki Ueda, Kenji Izumiya, Ryuji Okutomi, Eiji Nishikawa, Satoshi Ogata +1 more 2004-04-20
6718071 Image reading apparatus and method Mitsuhiro Yoshida, Tamio Amagai, Noriaki Yamazaki, Takeshi Kimura 2004-04-06
6693008 Method of manufacturing a semiconductor integrated circuit device and a semiconductor integrated circuit device Hidenori Sato, Norio Suzuki, Akira Takamatsu, Takeshi Saikawa, Katsuhiko Hotta +1 more 2004-02-17
6509277 Method of manufacturing semiconductor integrated circuit device having insulatro film formed from liquid containing polymer of silicon, oxygen, and hydrogen Masayoshi Saito, Katsuhiko Hotta, Masayoshi Hirasawa, Masayuki Kojima, Hiroyuki Uchiyama +1 more 2003-01-21
6482727 Method of producing a semiconductor integrated circuit device and the semiconductor integrated circuit device Hiroyuki Enomoto, Makoto Yoshida 2002-11-19