KY

Kiyoshi Yamaguchi

Ricoh Company: 21 patents #1,013 of 9,818Top 15%
HI Hitachi: 13 patents #3,142 of 28,497Top 15%
Fujitsu Limited: 6 patents #5,180 of 24,456Top 25%
KT Kabushiki Kaisha Toshiba: 5 patents #5,683 of 21,451Top 30%
MC Mochida Pharmaceutical Co.: 3 patents #67 of 309Top 25%
SC Sumitomo Seika Chemicals Co.: 3 patents #97 of 365Top 30%
TO Tokico: 2 patents #111 of 359Top 35%
MC Murata Manufacturing Co.: 2 patents #2,631 of 5,295Top 50%
Sharp Kabushiki Kaisha: 2 patents #5,184 of 10,731Top 50%
FI Fujifilm Business Innovation: 1 patents #3,579 of 5,238Top 70%
KA Kaneka: 1 patents #886 of 1,525Top 60%
MM Mitsubishi Materials: 1 patents #812 of 1,543Top 55%
NT NTT: 1 patents #2,911 of 4,871Top 60%
Overall (All Time): #35,711 of 4,157,543Top 1%
63
Patents All Time

Issued Patents All Time

Showing 26–50 of 63 patents

Patent #TitleCo-InventorsDate
8197048 Image forming apparatus Kunihiro Yamanaka, Kenichiroh Hashimoto, Hideyuki Makita, Takahiro Yoshida, Kunihiro Miura +1 more 2012-06-12
8047637 Piezoelectric actuator and manufacturing method thereof, liquid ejecting head, and image forming apparatus Kiyoshi Tsukamura, Kenichiroh Hashimoto 2011-11-01
8042458 Heating cooker and tray therefor Shinya Ueda, Kazuyuki Matsubayashi 2011-10-25
7764006 Piezoelectric actuator and manufacturing method thereof, liquid ejecting head, and image forming apparatus Kiyoshi Tsukamura, Kenichiroh Hashimoto 2010-07-27
7665830 Liquid discharge head, liquid discharge device, and image forming device Kenichiroh Hashimoto 2010-02-23
7364253 Liquid drop jet head, ink cartridge and ink jet recording apparatus Kenichiro Hashimoto, Mitsumi Fujii, Tomomi Katoh, Tsuneo Maki 2008-04-29
7103845 Terminal apparatus for operator and communication path setting method Michiko Ueno, Hidetoshi Iwasaki, Masaaki Nagano, Shinichi Izawa, Tooru Nakao +4 more 2006-09-05
6913348 Liquid drop jet head, ink cartridge and ink jet recording apparatus Kenichiro Hashimoto, Mitsumi Fujii, Tomomi Katoh, Tsuneo Maki 2005-07-05
6853388 Network management equipment and communication path setting method Michiko Ueno, Tooru Nakao, Hidetoshi Iwasaki, Yasushi Ariga, Youko Yamamoto +5 more 2005-02-08
6849983 Rotary machine having bypath magnetic path blocking magnetic barrier Fumio Tajima, Yutaka Matsunobu, Masashi Kitamura, Osamu Koizumi, Suetaro Shibukawa +5 more 2005-02-01
6740383 Magnetic recording medium possessing a ratio of Hc(perpendicular) to Hc(horizontal) that is not more than 0.22 and magnetic recording disk device Masayoshi Shinohara, Kenji Sato, Yuki Yoshida, Iwao Okamoto, Yasuji Ikeda 2004-05-25
6729716 Liquid drop jet head and ink jet recording apparatus Hirotoshi Eguchi, Shuzo Matsumoto, Kenichi Ogata, Takayuki Hiyoshi, Mitsuru Shingyohuchi +1 more 2004-05-04
6682185 Liquid drop jet head, ink cartridge and ink jet recording apparatus Kenichiro Hashimoto, Mitsumi Fujii, Tomomi Katoh, Tsuneo Maki 2004-01-27
6509108 Magnetic recording medium and a magnetic disc apparatus, with a CRP or CrMoP reinforcing coat layer Chiaki Okuyama, Yuki Yoshida, Kenji Sato, Yoshita Kitamoto 2003-01-21
6377767 Toner agitating and transporting member of a toner cartridge and developing device Koji Fukushima, Yoshihiro Maekawa, Yuusaku Shibuya, Tomomitsu Fukuda, Kazuya Furuta +1 more 2002-04-23
6093603 Fabricating semiconductor memory devices with improved cell isolation 2000-07-25
5952691 Non-volatile electrically alterable semiconductor memory device 1999-09-14
5914168 Magnetic recording medium and magnetic disc device Hiroaki Wakamatsu, Katsuhide Sone, Yoshihiro Mitobe, Yoshito Kitamoto 1999-06-22
5598710 Superconducting apparatus and method for operating said superconducting apparatus Hiroshi Tomeoku, Ryukichi Takahashi, Toshiharu Tominaka, Naoki Maki 1997-02-04
5550391 Light-emitting diode and light-emitting diode array 1996-08-27
5515746 Traveling driving device for a bicycle 1996-05-14
5260586 Optical exclusive-or element Hiroshi Kondoh, Yasuhiro Osawa 1993-11-09
5107524 Synchrotron radiation utilizing apparatus and method for utilizing synchrotron radiation Masashi Kitamura, Naoki Maki, Takashi Kobayashi 1992-04-21
5067993 Magnetic core material made of Fe-Co base alloy for high frequencies Saburo Wakita, Norio Yanagisawa 1991-11-26
4996496 Bending magnet Masashi Kitamura, Takashi Kobayashi, Shunji Kakiuchi, Hiroshi Tomeoku, Naoki Maki +2 more 1991-02-26