KO

Kenji Okuna

HI Hitachi: 13 patents #3,142 of 28,497Top 15%
HC Hitachi Koki Co.: 5 patents #222 of 888Top 25%
HS Hitachi-Omron Terminal Solutions: 3 patents #22 of 113Top 20%
📍 Ibaraki, JP: #498 of 6,779 inventorsTop 8%
Overall (All Time): #278,524 of 4,157,543Top 7%
17
Patents All Time

Issued Patents All Time

Showing 1–17 of 17 patents

Patent #TitleCo-InventorsDate
7988141 Bill deposit/withdrawal machine for depositing/withdrawing bills Riichi Katou, Kunihisa Matsuura, Itsunori Utsumi 2011-08-02
7644914 Bill deposit/withdrawal machine for depositing/withdrawing bills Riichi Katou, Kunihisa Matsuura, Itsunori Utsumi 2010-01-12
7464921 Bill deposit/withdrawal machine for depositing/withdrawing bills Riichi Katou, Kunihisa Matsuura, Itsunori Utsumi 2008-12-16
7305113 Paper-like sheet discriminator Takashi Yoshida 2007-12-04
7216591 Bill deposit/withdrawal machine for depositing/withdrawing bills Riichi Katou, Kunihisa Matsuura, Itsunori Utsumi 2007-05-15
7011201 Bill deposit/withdrawal machine for depositing/withdrawing bills Riichi Katou, Kunihisa Matsuura, Itsunori Utsumi 2006-03-14
6889898 Bill deposit/withdrawal machine for depositing/withdrawing bills Riichi Katou, Kunihisa Matsuura, Itsunori Utsumi 2005-05-10
6572013 Bill deposit/withdrawal machine for depositing/withdrawing bills Riichi Katou, Kunihisa Matsuura, Itsunori Utsumi 2003-06-03
6422458 Bill deposit/withdrawal machine for depositing/withdrawing bills Riichi Katou, Kunihisa Matsuura, Itsunori Utsumi 2002-07-23
6047684 Gear pump and fuel transfer system using the gear pump Kenji Hiraku, Yuzo Kadomukai, Yukio Takahashi, Yasuo Kita 2000-04-11
5884597 Fuel feeding apparatus for internal combustion engine and vehicle using the fuel feeding apparatus Kenji Hiraku, Tadahiko Nogami, Kiyoshi Amou, Atsuji Saito, Atsuo Kishi 1999-03-23
5144343 Image recording method and apparatus Sayoko Oba, Katsumi Muroi, Katsubumi Ouchi, Tsutomu Iimura, Ryoji Kojima 1992-09-01
5021810 Printing machine Katsumi Muroi, Hidefumi Otsuka, Kastubumi Ouchi, Tsutomu Iimura, Ryoji Kojima 1991-06-04
4977415 Electrostatic recording head, image recording apparatus, developing agent supplying device, display device and method of producing electrostatic recording head Sayoko Oba, Katsumi Muroi, Hidefumi Ohtsuka, Tsutomu Iimura, Ryoji Kojima +1 more 1990-12-11
4777499 Method and apparatus for image recording Hidefumi Ohtsuka, Sayoko Ohba, Takaomi Nishigaito, Katsumi Muroi, Tsutomu Iimura +1 more 1988-10-11
4763143 Electrographic recording apparatus Sayoko Ohba, Hidefumi Ohtsuka 1988-08-09
4392423 Printing hammer driving apparatus Isao Nakajima, Koji Tagusari, Toru Hayama, Kazue Takahashi, Michihiro Watanabe +1 more 1983-07-12