HM

Hiroshi Maruyama

Honda Motor Co.: 23 patents #462 of 21,052Top 3%
IBM: 20 patents #5,451 of 70,183Top 8%
FC Fuji Electric Co.: 13 patents #162 of 2,643Top 7%
HM Hitachi Maxell: 8 patents #102 of 1,211Top 9%
SO Somar: 8 patents #12 of 174Top 7%
SE Seikagaku: 4 patents #25 of 253Top 10%
HI Hitachi: 4 patents #8,942 of 28,497Top 35%
DC Daisan Kasei Co.: 3 patents #1 of 21Top 5%
NE Nec: 3 patents #4,195 of 14,502Top 30%
AC Arisawa Mfg. Co.: 2 patents #22 of 105Top 25%
HC Hitachi Ulsi Systems Co.: 2 patents #419 of 867Top 50%
Kyocera: 2 patents #1,365 of 3,732Top 40%
RI Riken: 2 patents #375 of 1,824Top 25%
SK Seikagaku Kogyo: 2 patents #22 of 102Top 25%
PA Panasonic: 2 patents #9,678 of 21,108Top 50%
HO Horiba: 1 patents #319 of 604Top 55%
NK Nippon Kayaku: 1 patents #556 of 1,103Top 55%
NC Nippon Soda Co.: 1 patents #348 of 648Top 55%
XI Xanavi Informatics: 1 patents #75 of 156Top 50%
HK Heishin Sobi Kabushiki Kaisha: 1 patents #8 of 16Top 50%
CC Citizen Watch Co.: 1 patents #668 of 1,225Top 55%
Fujitsu Limited: 1 patents #14,843 of 24,456Top 65%
Sumitomo Electric Industries: 1 patents #13,249 of 21,551Top 65%
TL Teijin Limited: 1 patents #850 of 1,631Top 55%
KA Kao: 1 patents #1,961 of 3,221Top 65%
KC Kishimoto Sangyo Co.: 1 patents #8 of 34Top 25%
TK Toyo Boseki Kabushiki Kaisha: 1 patents #541 of 1,085Top 50%
MC Mitsui Chemicals: 1 patents #1,270 of 2,279Top 60%
Overall (All Time): #12,277 of 4,157,543Top 1%
108
Patents All Time

Issued Patents All Time

Showing 101–108 of 108 patents

Patent #TitleCo-InventorsDate
4918559 Shutter assembly for a disk cartridge Yoshitake Kato, Minoru Fujita 1990-04-17
4831478 Disc drive assembly for supporting a recording disc Yoshitake Kato 1989-05-16
D298251 Disk cartridge Yoshitake Kato 1988-10-25
4743994 Arrangement for positioning a recording disc of a disc cartridge Yoshitake Kato 1988-05-10
4714973 Shutter assembly for use in a disc cartridge Yoshitake Kato, Minoru Fujita 1987-12-22
4695910 Recording disc cartridge having an improved hub assembly Kunio Mizushima, Akito Sakemoto, Nobuhiro Umebayashi 1987-09-22
4595665 High alumina sintered body Hiroshi Takayama 1986-06-17
4233257 Method of making a liquid junction for a reference electrode Masashi Watanabe 1980-11-11