TO

Tadashi Ogawa

Ricoh Company: 92 patents #44 of 9,818Top 1%
Fujitsu Limited: 38 patents #487 of 24,456Top 2%
Pioneer Electronic: 8 patents #194 of 1,840Top 15%
TC Toyo Ink Mfg. Co.: 3 patents #62 of 499Top 15%
LE Lec: 2 patents #1 of 13Top 8%
UI Ube Industries: 2 patents #593 of 1,686Top 40%
YE Yokogawa Hokushin Electric: 2 patents #13 of 112Top 15%
KC Komatsu Electronic Metals Co.: 2 patents #57 of 160Top 40%
TO Toyota: 2 patents #10,861 of 26,838Top 45%
SC Sumitomo Cement Co.: 1 patents #32 of 113Top 30%
NC Nippondenso Co.: 1 patents #1,765 of 3,479Top 55%
JI Japan Atomic Energy Research Institute: 1 patents #188 of 609Top 35%
IW Iwatani: 1 patents #23 of 73Top 35%
KT Kabushiki Kaisha Toshiba: 1 patents #13,537 of 21,451Top 65%
PA Panasonic: 1 patents #13,264 of 21,108Top 65%
Overall (All Time): #5,732 of 4,157,543Top 1%
156
Patents All Time

Issued Patents All Time

Showing 76–100 of 156 patents

Patent #TitleCo-InventorsDate
8543046 Fixing device, image forming apparatus incorporating same, and fixing method Hiroshi Seo, Masanao Ehara, Satoshi Ueno, Shuutaroh Yuasa 2013-09-24
8494434 Fixing device and image forming apparatus incorporating the fixing device Takamasa Hase, Masanao Ehara, Kenji Ishii, Satoshi Ueno, Hiroshi Seo +1 more 2013-07-23
8488981 Fixing device and image forming apparatus using the same Shuutaroh Yuasa, Masanao Ehara, Satoshi Ueno, Hiroshi Seo, Takamasa Hase 2013-07-16
8463166 Fixing device and image forming apparatus Satoshi Ueno, Masanao Ehara, Hiroshi Seo, Takamasa Hase, Takahiro Imada +1 more 2013-06-11
8447199 Fixing device and image forming apparatus including same Satoshi Ueno, Masanao Ehara, Hiroshi Seo, Takahiro Imada, Takamasa Hase 2013-05-21
8385797 Fixing device and image forming apparatus incorporating same Masanao Ehara, Kenji Ishii, Satoshi Ueno, Hiroshi Seo 2013-02-26
8346117 Fixing device and image forming apparatus using same Kenji Ishii, Satoshi Ueno, Hiroshi Seo, Masanao Ehara 2013-01-01
8112023 Image forming apparatus and fixing device Hiroshi Seo, Akiko Ito, Toshiaki Higaya 2012-02-07
8014711 Fixing unit having enhanced temperature control and image forming apparatus using the same Akiko Ito, Hiroshi Seo 2011-09-06
7885590 Image forming apparatus and fixing device Hiroshi Seo, Akiko Ito, Toshiaki Higaya 2011-02-08
7817952 Fixer and image forming apparatus including the same Hiroshi Seo, Akiko Ito, Toshiaki Higaya 2010-10-19
7801457 Fixing device, image forming apparatus including the fixing device, and fixing method Hiroshi Seo, Akiko Ito, Satoshi Ueno, Kenji Ishii 2010-09-21
7796933 Fixing device using electromagnetic induction heating and image forming apparatus including same Satoshi Ueno, Kenji Ishii, Akiko Ito, Hiroshi Seo 2010-09-14
7783240 Fixing device, image forming apparatus including the fixing device, and fixing method Akiko Ito, Kenji Ishii, Satoshi Ueno, Hiroshi Seo 2010-08-24
7778581 Fixing unit having enhanced heating efficiency and image forming apparatus using the same Hiroshi Seo, Akiko Ito 2010-08-17
7734208 Image fixing apparatus and image forming apparatus capable of effectively controlling an image fixing temperature Hiroshi Seo, Motokazu Yasui, Hiroshi Koide 2010-06-08
7693439 Fixing device, and method and device for heating control used in the same Hiroshi Seo, Motokazu Yasui, Hiroshi Koide 2010-04-06
7546049 Image forming device with a control means to correct the fixing control temperature Masanao Ehara, Ippei Fujimoto, Shinichi Namekata, Hiroshi Yoshinaga, Hirofumi Ogawa +1 more 2009-06-09
7509085 Image forming apparatus, fixing apparatus and toner Hiroshi Yoshinaga, Shinichi Namekata, Hiroyuki Shimada, Masanao Ehara, Hirofumi Ogawa +1 more 2009-03-24
7202298 Polyamide resin composition for part of engine cooling water system and part comprising the same Seiichi Arakawa 2007-04-10
6090688 Method for fabricating an SOI substrate Akihiro Ishii, Yuichi Nakayoshi 2000-07-18
6044769 In-pipe work apparatus Kiyoshi Oka, Eisuke Tada, Kouichi Tuji, Yuuji Takiguchi, Seiichiro Kimura +4 more 2000-04-04
6021812 Ball plug valve Kunio Iwamoto, Hitoshi Ishiyama, Hideki Wakahara 2000-02-08
6004860 SOI substrate and a method for fabricating the same Akihiro Ishii, Yuichi Nakayoshi 1999-12-21
5820962 Optical recording material and optical recording medium Shuichi Kimura, Makoto Sakamoto 1998-10-13