AY

Akira Yoshikawa

TU Tohoku University: 15 patents #17 of 1,680Top 2%
PA Panasonic: 9 patents #2,933 of 21,108Top 15%
TO Tokuyama: 9 patents #27 of 562Top 5%
Sumitomo Electric Industries: 6 patents #4,612 of 21,551Top 25%
AK Asahi Kasei Kabushiki Kaisha: 4 patents #111 of 1,220Top 10%
TC Tohoku Techno Arch Co.: 4 patents #4 of 193Top 3%
PS Piezo Studio: 3 patents #1 of 16Top 7%
NP Nippon Telegraph And Telephone Public: 3 patents #61 of 842Top 8%
Tdk: 2 patents #1,902 of 3,796Top 55%
CA Ca: 2 patents #377 of 1,424Top 30%
NU National University Corporation Nagoya University: 2 patents #92 of 782Top 15%
NI Ngk Insulators: 2 patents #947 of 2,083Top 50%
TC Toppan Printing Co.: 2 patents #414 of 1,467Top 30%
HI Hitachi: 2 patents #13,388 of 28,497Top 50%
NT NTT: 2 patents #2,095 of 4,871Top 45%
MC Mitsubishi Chemical: 2 patents #928 of 3,022Top 35%
FC Furukawa Co.: 2 patents #22 of 90Top 25%
RL Rank Xerox Limited: 1 patents #5 of 31Top 20%
NC Nihon Kessho Kogaku Co.: 1 patents #7 of 13Top 55%
NI Nkg Insulators: 1 patents #1 of 20Top 5%
OU Osaka University: 1 patents #681 of 1,984Top 35%
JA Japan Science And Technology Agency: 1 patents #756 of 2,171Top 35%
SC Stella Chemifa: 1 patents #47 of 80Top 60%
TK Tanaka Kikinzoku Kogyo K.K.: 1 patents #216 of 436Top 50%
TS Tokai University Educational System: 1 patents #30 of 138Top 25%
CK Calsonic Kansei: 1 patents #307 of 675Top 50%
📍 Rifu, JP: #25 of 2,101 inventorsTop 2%
Overall (All Time): #36,717 of 4,157,543Top 1%
62
Patents All Time

Issued Patents All Time

Showing 26–50 of 62 patents

Patent #TitleCo-InventorsDate
8642972 Neutron scintillator and neutron detector Kentaro Fukuda, Sumito Ishizu, Noriaki Kawaguchi, Toshihisa Suyama, Takayuki Yanagida +1 more 2014-02-04
8405034 Scintillator for neutron detection and neutron measurement device Hiroshi Azechi, Nobuhiko Sarukura, Yasunobu Arikawa, Mitsuo Nakai, Hirofumi Kan +5 more 2013-03-26
8164998 Optical disc device Yuuichi Kuze, Katsuya Watanabe 2012-04-24
8120998 Optical disk drive and method for driving the optical disk drive in relation to a velocity switching point Kenji Kondo 2012-02-21
8072852 Optical disc device Junichi Minamino, Katsuya Watanabe 2011-12-06
8044367 Scintillator for neutron detection and neutron detector Takayuki Yanagida, Kentaro Fukuda, Sumito Ishizu, Noriaki Kawaguchi, Toshihisa Suyama 2011-10-25
7969844 Optical disc device Katsuya Watanabe, Eiji Ueda, Hiroshige Ishibashi, Yuuichi Kuze 2011-06-28
7947192 Gallate single crystal, process for producing the same, piezoelectric device for high-temperature use and piezoelectric sensor for high-temperature use Tsuguo Fududa, Hiroki Sato 2011-05-24
7882513 Optical disc device and method for controlling optical disc device Hideki Aikoh, Makoto Takashima, Takao Hayashi, Tomio Yamamoto, Kouretsu Boku 2011-02-01
7864638 Optical disk apparatus Katsuya Watanabe, Shin-ichi Yamada, Junichi Minamino 2011-01-04
7800987 Optical pickup driving apparatus and optical pickup beam spot positioning method Yoshiaki Komma 2010-09-21
7608828 Solid solution material of rare earth element fluoride (polycrystal and single crystal), and method for preparation thereof, and radiation detector and test device Kenji Aoki, Tomohiko Satonaga, Kei Kamada, Tsuguo Fukuda 2009-10-27
7525883 Optical disk apparatus Kenji Kondo 2009-04-28
7480218 Optical disk control device with focal point movement control Shin-ichi Yamada 2009-01-20
7347956 Luminous material for scintillator comprising single crystal of Yb mixed crystal oxide Tsuguo Fukuda, Takashi Tsuzaki 2008-03-25
7323053 Pulling-down apparatus and container therefor Kazushige Tohta, Kou Onodera, Takeshi Ito, Tsuguo Fukuda 2008-01-29
7276680 Control unit and optical disk drive including the control unit Katsuya Watanabe 2007-10-02
7266073 Optical disc apparatus, camera apparatus, and method for controlling light emission operation Kenzo Ishibashi, Makoto Ichinose, Katsumi Gotoh, Takatoshi Yukimasa 2007-09-04
7242648 Tracking error signal generation device, optical disc apparatus, tracking error signal generation method and tracking control method Shin-ichi Yamada, Yuuichi Kuze, Katsuya Watanabe, Kenji Kondo 2007-07-10
7032487 Corrugated fin cutting device and cutting method Kenji Tochigi, Kimio Nozaki 2006-04-25
6968079 Investigation device and investigation method Kazuhisa Machida, Hitoshi Komuro, Takehiro Hirai, Katsuhiro Kitahashi 2005-11-22
5400980 Tape driving apparatus 1995-03-28
5330118 Tape driving apparatus 1994-07-19
5247402 Apparatus for high speed searching and reproduction of data recorded in a tape medium Kazuo Arai 1993-09-21
D334581 Industrial robot Masato Shibayama, Shigeki Masatsugu, Tatenori Jinriki 1993-04-06