KK

Kenta Kumagai

HI Hitachi: 20 patents #1,757 of 28,497Top 7%
HM Hitachi Via Mechanics: 1 patents #43 of 109Top 40%
Overall (All Time): #209,998 of 4,157,543Top 6%
21
Patents All Time

Issued Patents All Time

Showing 1–21 of 21 patents

Patent #TitleCo-InventorsDate
D733134 Magnetic disk storage unit for electronic computer Toshiyuki Utsuki, Junpei Hokari, Koichi Umezawa, Yoshikatsu Kasahara, Kenichi Miyamoto 2015-06-30
D733135 Magnetic disk storage unit for electronic computer Toshiyuki Utsuki, Junpei Hokari, Koichi Umezawa, Manabu Yamagata, Toru Kobayashi 2015-06-30
D730894 Magnetic disc storage unit for electronic computer Junpei Hokari, Toshiyuki Utsuki, Koichi Umezawa, Chikazu Yokoi, Yoshikatsu Kasahara 2015-06-02
D690694 Magnetic disk storage unit for electronic computer Toshiyuki Utsuki, Sayuri Hashizume, Koichi Umezawa, Chikazu Yokoi, Yoshikatsu Kasahara 2013-10-01
D650383 Magnetic disc storage unit for electronic computer Toshiyuki Utsuki, Sayuri Hashizume, Toshihiko Wada, Yasuji Morishita, Yoshikatsu Kasahara 2011-12-13
D479230 Computer Shingo Hirose, Yoshiaki Amano, Satoshi Hamazaki, Hiroki Hosono, Yoshinori Goko +1 more 2003-09-02
D460886 Front panel of a storage unit Sayuri Hashizume, Toshiyuki Utsuki, Kazuhiko Nishiyama, Yasuji Morishita, Toshio Ohdaira 2002-07-30
D444148 Computer housing Sayuri Hashizume, Takashi Yamamoto, Takashi Ohwada, Toshiyuki Utsuki, Mitsuo Miyamoto +2 more 2001-06-26
6217265 Printed circuit board drilling machine and its maintenance method Atsushi Katayama, Norio Michigami, Katsuhiro Nagasawa 2001-04-17
D440564 Magnetic disc storage unit for electronic computer Takashi Ohwada, Toshiyuki Utsuki, Takashi Yamamoto, Masato Hirano, Takamasa Ishikawa +1 more 2001-04-17
D432534 Computer Shingo Hirose, Takashi Yamamoto, Yoshiaki Amano, Taisuke Kashima, Tsukasa Ariyoshi +4 more 2000-10-24
D427191 Computer housing Sayuri Hashizume, Toshiyuki Utsuki, Yoshihiro Iwama, Takashi Yamamoto, Takashi Ohwada +4 more 2000-06-27
5796580 Air-cooled information processing apparatus having cooling air fan, sub-fan, and plural separated cooling air flow channels Toshihiro Komatsu, Hitoshi Matsushima, Toshio Hatada, Susumu Iwai, Tetsuro Homma +7 more 1998-08-18
D394246 Computer housing Takashi Yamamoto, Toshiyuki Utsuki, Tohru Higashihara, Yutaka Yonezawa, Tamotsu Tsukaguchi +3 more 1998-05-12
D389464 Computer Toshiyuki Utsuki, Takashi Yamamoto, Tohru Higashihara, Tamotsu Tsukaguchi, Mitsuharu Nagai +2 more 1998-01-20
D374965 ATM communication apparatus Toshiyuki Utsuki, Yukio Kuroiwa, Yoshiki Yoshida, Setsuo Takahashi 1996-10-22
D371347 Computer Toshiyuki Utsuki, Takashi Yamamoto, Yutaka Yonezawa, Tadahiro Yamaguchi, Tamotsu Tsukaguchi +2 more 1996-07-02
D332258 Combined facsimile transceiver and copying machine Atsuhiko Urushihara, Sumie Komuro, Taisuke Kashima, Hideo Nakazawa 1993-01-05
D317600 Television receiver Yoshiaki Amano, Fumihito Katou, Kouichi Kasama, Tooru Kiyota 1991-06-18
D306723 Television receiver Hiroyuki Kogane, Toru Kiyota, Ryuichiro Tanaka, Tomokatsu Saitou 1990-03-20
D300173 Air-conditioner Noboru Chiba, Syoji Tsubokuda 1989-03-07