MY

Masaaki Yoshikawa

Ricoh Company: 113 patents #27 of 9,818Top 1%
Yamaha Motor: 26 patents #18 of 2,310Top 1%
Aisin Seiki Kabushiki Kaisha: 10 patents #313 of 3,782Top 9%
MM Mitsubishi Mining: 4 patents #189 of 2,247Top 9%
AC Asahi Glass Co.: 4 patents #490 of 2,251Top 25%
NC Nippon Metal Industry Co.: 4 patents #1 of 22Top 5%
PA Panasonic: 3 patents #7,617 of 21,108Top 40%
Sumitomo Electric Industries: 3 patents #7,735 of 21,551Top 40%
Mitsubishi Electric: 2 patents #11,187 of 25,717Top 45%
NC Nikkiso Co.: 2 patents #107 of 287Top 40%
NK Nippon Gohsei Kagaku Kogyo: 2 patents #30 of 142Top 25%
NM Nisshin Flour Milling: 2 patents #106 of 320Top 35%
RI Riken: 2 patents #375 of 1,824Top 25%
TC Tohoku Ricoh Co.: 2 patents #69 of 204Top 35%
DC Dena Co.: 1 patents #81 of 210Top 40%
BL Brumby Corporation Limited: 1 patents #13 of 35Top 40%
IR Institute Of Physical And Chemical Research: 1 patents #66 of 172Top 40%
KC Kyowa Hakko Kogyo Co.: 1 patents #549 of 943Top 60%
KK Kirin Beer Kabushiki Kaisha: 1 patents #149 of 379Top 40%
TD Tokyo R & D: 1 patents #22 of 42Top 55%
Fujitsu Limited: 1 patents #14,843 of 24,456Top 65%
Overall (All Time): #3,964 of 4,157,543Top 1%
186
Patents All Time

Issued Patents All Time

Showing 101–125 of 186 patents

Patent #TitleCo-InventorsDate
8447220 Fixing device and image forming apparatus including same Yoshiki Yamaguchi, Kenji Ishii, Naoki Iwaya, Tetsuo Tokuda, Yutaka Ikebuchi +5 more 2013-05-21
8437675 Fixing device and image forming apparatus incorporating same having a laminated heater with a flexible heat generation sheet Kenji Ishii, Hiroshi Yoshinaga, Naoki Iwaya, Yoshiki Yamaguchi, Yutaka Ikebuchii +5 more 2013-05-07
8428502 Belt-type fixing device and image forming apparatus using same Tetsuo Tokuda, Akira Shinshi, Kenichi Hasegawa, Hiroshi Yoshinaga, Naoki Iwaya +6 more 2013-04-23
8428501 Fixing device and image forming apparatus incorporating same Akira Shinshi, Yoshiki Yamaguchi, Kenichi Hasegawa, Hiroshi Yoshinaga, Kenji Ishii +6 more 2013-04-23
8406647 Fixing device including a radiation member to cool a fixing member and a heat conductive member Akira Shinshi, Yoshiki Yamaguchi, Kenichi Hasegawa, Hiroshi Yoshinaga, Kenji Ishii +8 more 2013-03-26
8401448 Fixing device and image forming apparatus incorporating same Yoshiki Yamaguchi, Kenichi Hasegawa, Hiroshi Yoshinaga, Kenji Ishii, Akira Shinshi +6 more 2013-03-19
8401414 Fixing device and image forming apparatus incorporating same Yoshiki Yamaguchi, Toshihiko Shimokawa, Kenji Ishii, Naoki Iwaya, Takahiro Imada +7 more 2013-03-19
8385804 Fixing device and image forming apparatus employing the fixing device Yoshiki Yamaguchi, Kenichi Hasegawa, Hiroshi Yoshinaga, Kenji Ishii, Akira Shinshi +8 more 2013-02-26
8364052 Fixing device and image forming apparatus incorporating same Naoki Iwaya, Akira Shinshi, Kenji Ishii, Kenichi Hasegawa, Hiroshi Yoshinaga +8 more 2013-01-29
8311469 Fixing device and image forming apparatus incorporating same Yoshiki Yamaguchi, Toshihiko Shimokawa, Kenji Ishii, Naoki Iwaya, Takahiro Imada +8 more 2012-11-13
8306390 Scene segment dividing device Toru Nakada, Wenli Zhang 2012-11-06
7873637 Automatically imparting an index by using various kinds of control signals Norihiko Kobayashi, Toru Nakada 2011-01-18
7655204 Heat-treated active carbons for use in denitration, processes for producing same, denitration method using same, and denitration system using same Isao Mochida, Akinori Yasutake, Toshihiko Setoguchi, Norihisa Kobayashi, Takahiro Kasuh 2010-02-02
7590379 Image formation device Toshiyuki Mae 2009-09-15
7465429 Heat-treated active carbons for use in denitration, processes for producing same, denitration method using same, and denitration system using same Isao Mochida, Akinori Yasutake, Toshihiko Setoguchi, Norihisa Kobayashi, Takahiro Kasuh 2008-12-16
7458349 Valve train apparatus for 4 stroke-cycle internal combustion engine 2008-12-02
7285936 Charging system for battery-set Nobuhito Ohnuma, Hikokazu Okaguchi 2007-10-23
7183766 Superconducting magnetic field generation apparatus and sputter coating apparatus Yoshitaka Ito, Yousuke Yanagi, Hiroyasu Nomachi 2007-02-27
7179417 Sn—Zn lead-free solder alloy, its mixture, and soldered bond Haruo Aoyama, Hirotaka Tanaka 2007-02-20
7175805 Tin-zinc lead-free solder, its mixture, and solder-joined part Haruo Aoyama, Hirotaka Tanaka 2007-02-13
7175804 Sn-Zn lead-free solder alloy, and solder junction portion Haruo Aoyama, Hirotaka Tanaka 2007-02-13
7070736 Sn-Zn lead-free solder alloy and soldered bond Haruo Aoyama, Hirotaka Tanaka 2006-07-04
7065097 Program information transmission apparatus that transits program information at a constant rate through a cycle Tsutomu Kumazaki, Takashi Matsumoto, Osamu Takeuchi 2006-06-20
7029639 Desulfurizer comprising activated carbon and method of desulfurization Akinori Yasutake, Norihisa Kobayashi, Takashi Kurisaki 2006-04-18
7026901 Superconducting magnet apparatus and method for magnetizing superconductor Yousuke Yanagi, Tetsuo Oka, Yoshitaka Itoh 2006-04-11