MH

Masashi Hirai

Sharp Kabushiki Kaisha: 33 patents #380 of 10,731Top 4%
DA Daishinku: 2 patents #27 of 68Top 40%
KC Kuraray Co.: 2 patents #662 of 1,827Top 40%
📍 Ibaraki, JP: #131 of 6,779 inventorsTop 2%
Overall (All Time): #90,427 of 4,157,543Top 3%
37
Patents All Time

Issued Patents All Time

Showing 26–37 of 37 patents

Patent #TitleCo-InventorsDate
6411792 Image forming device 2002-06-25
6301023 Image forming apparatus Hidekazu Sakagami, Syoichiro Yoshiura, Osamu Nakayama, Fumio Shimazu, Noritaka Okazaki 2001-10-09
6173141 Apparatus for forming color images by the superimposition of visualized latent images having drive means for simultaneously driving at least a recording medium conveying means and a source of black visualized latent images Hidekazu Sakagami, Toshiro Kurishita, Osamu Nakayama 2001-01-09
6148168 Apparatus for forming superimposed image patterns having controlled densities Hideo Matsuda 2000-11-14
6108514 Sheet conveying system Osamu Nakayama, Koichi Nakamura, Noritaka Okazaki, Fumio Shimazu, Kiyoshi Toizumi 2000-08-22
6014920 Paper-punching device for use in a image-forming apparatus Yasuji Yamauchi, Toshio Yamanaka, Masafumi Okumura, Kyousuke Taka, Kinji Uno +2 more 2000-01-18
5884133 Electrostatic image transfer apparatus Toshihide Morimoto 1999-03-16
5839336 Paper-punching device for use in an image-forming apparatus Yasuji Yamauchi, Toshio Yamanaka, Masafumi Okumura, Kyousuke Taka, Kinji Uno +2 more 1998-11-24
5655173 Image forming apparatus Hirokazu Yamauchi 1997-08-05
5651542 Paper feeder Hirokazu Yamauchi, Tatsuya Inoue, Masahiko Fujita 1997-07-29
5339144 Recording paper separating device with constant current control Yukio Nakai, Hiroshi Kida, Masahiko Fujita, Takahiro Fukunaga 1994-08-16
4847652 Image transfer device Zitsuo Masuda, Hiroshi Kinashi, Yoshiharu Tsujimoto 1989-07-11