MK

Masao Kumagai

Fujitsu Limited: 9 patents #3,538 of 24,456Top 15%
AC Alps Electric Co.: 4 patents #470 of 2,177Top 25%
FL Fujitsu Semiconductor Limited: 2 patents #355 of 1,301Top 30%
FC Fuji Manufacturing Co.: 1 patents #14 of 29Top 50%
FL Fujitsu Microelectronics Limited: 1 patents #212 of 624Top 35%
FC Fuji Kihan Co.: 1 patents #3 of 12Top 25%
JA Jatco: 1 patents #458 of 871Top 55%
KL Kyushu Fujitsu Electronics Limited: 1 patents #41 of 75Top 55%
SL Spansion Llc.: 1 patents #435 of 769Top 60%
YS Yamasa Shoyu: 1 patents #31 of 70Top 45%
📍 Osaki, JP: #6 of 142 inventorsTop 5%
Overall (All Time): #210,346 of 4,157,543Top 6%
21
Patents All Time

Issued Patents All Time

Showing 1–21 of 21 patents

Patent #TitleCo-InventorsDate
8823344 Control circuit, electronic device, and method for controlling power supply Koichiro Kushida, Kazuyoshi Futamura 2014-09-02
8518543 DLC-coated sliding member and method for producing the same Makoto Kano, Takahiro Horiuchi, Shinichi Takagi, Eiji Shimodaira, Yoshio Miyasaka 2013-08-27
7978168 D/A converter Hideto Fukuda, Shinya Udo, Osamu Kudo 2011-07-12
7903071 Driver IC for display and display including same Hideto Fukuda, Shinya Udo, Osamu Kudo 2011-03-08
7838075 Surface strengthening method Yoshio Jimbo, Fumiya Yakabe 2010-11-23
7580020 Semiconductor device and liquid crystal panel driver device Shinya Udo, Masatoshi Kokubun, Hidekazu Nishizawa, Takeo Shigihara 2009-08-25
7567873 Nondestructive inspection method and apparatus for a surface processed by shot peening Takashi Kojima, Kiyoshi Hoshikawa, Shozo Ishibashi 2009-07-28
7268763 Method for driving display and drive circuit for display Hideto Fukuda, Shinya Udo, Osamu Kudo 2007-09-11
7215312 Semiconductor device, display device, and signal transmission system Shinya Udo 2007-05-08
7180512 Integrated circuit free from accumulation of duty ratio errors Hideto Fukuda, Shinya Udo 2007-02-20
7098878 Semiconductor device and liquid crystal panel driver device Shinya Udo, Masatoshi Kokubun, Hidekazu Nishizawa, Takeo Shigihara 2006-08-29
7079104 Semiconductor device and liquid crystal panel display driver Shinya Udo 2006-07-18
6847346 Semiconductor device equipped with transfer circuit for cascade connection Shinya Udo 2005-01-25
5939543 Stable solid 2-octynyl adenosine and process for producing the same Manami Morozumi, Toyofumi Yamaguchi 1999-08-17
4883975 Schmitt trigger circuit Hiromu Enomoto, Hirofumi Dohgome, Toru Nakamura, Kimitaka Yoshiyama 1989-11-28
4835642 Magnetic head assembly for double-sided disk drive apparatus Masatoshi Furukawa, Tadami Sugawara, Hatsuo Sasaki, Yuichi Hishi, Atsushi Takahashi 1989-05-30
4774620 Logic circuit Hiromu Enomoto, Yasushi Yasuda, Akinori Tahara 1988-09-27
4764830 Magnetic head assembly in floppy disk drive Kazuo Kobayashi, Atsushi Takahashi, Kenji Abe 1988-08-16
4703202 Two-stage gate circuit providing inverted and non-inverted outputs Hiromu Enomoto, Yasushi Yasuda, Akinori Tahara 1987-10-27
4383153 Locking type push-button switch Shiro Kondo 1983-05-10
4259559 Illuminated push-button electrical switch assembly Shiro Kondo 1981-03-31