KO

Kohei Okuyama

MC Mitsubishi Chemical: 6 patents #261 of 3,022Top 9%
MK Mitsubishi Kasei: 4 patents #77 of 911Top 9%
MM Mitsubishi Mining: 2 patents #467 of 2,247Top 25%
NC Nissin Kogyo Co.: 2 patents #101 of 334Top 35%
KU Keio University: 1 patents #190 of 781Top 25%
SE Seiko Epson: 1 patents #5,551 of 7,774Top 75%
Overall (All Time): #408,125 of 4,157,543Top 10%
12
Patents All Time

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #TitleCo-InventorsDate
11779505 Finger exerciser Tomoyasu Ishimine, Miho Hiramoto 2023-10-10
8740332 Inkjet head drive method and inkjet head drive device 2014-06-03
6136286 Carbon black Mitsuo Suzuki 2000-10-24
6094338 Electric double-layer capacitor Satoshi Hirahara, Mitsuo Suzuki, Kazushi Matsuura 2000-07-25
6064560 Active carbon and process for its production Satoshi Hirahara, Mitsuo Suzuki 2000-05-16
5965479 Activated carbon and process for producing the same Mitsuo Suzuki, Hiroyuki Aikyo, Satoshi Hirahara, Kazushi Matsuura 1999-10-12
5956225 Activated carbon, process for the preparation thereof and electric double layer-type capacitor electrode Kazushi Matsuura, Yoshitaka Takeda, Yoshio Yoshino 1999-09-21
5586152 Carbon fiber-reinforced carbon composite materials, processes for their production, and first walls of nuclear fusion reactors employing them Kimihiro Ioki, Kazuo Niwa, Hitoshi Seki 1996-12-17
5439080 Pitch-reinforced carbon fiber brake disc and pyrolytic carbon/resin-reinforced carbon fiber friction pads Ichiro Haneda, Tatsuyoshi Sakurai, Mashiro Yanagisawa, Kazuo Niwa, Toshihiro Fukagawa 1995-08-08
5398784 Brake friction composite with reinforcing pyrolytic carbon and thermosetting resin Ichiro Haneda, Tatsuyoshi Sakurai, Mashiro Yanagisawa, Kazuo Niwa, Toshihiro Fukagawa 1995-03-21
5390217 Carbon fiber-reinforced carbon composite materials processes for their production, and first walls of nuclear fusion reactors employing them Kimihiro Ioki, Kazuo Niwa, Hitoshi Seki, Takanori Takahashi 1995-02-14
5077130 Carbon fiber-reinforced carbon composite material Kazushi Matsuura 1991-12-31