MK

Masayuki Kumazaki

SE Seiko Epson: 15 patents #1,253 of 7,774Top 20%
Fujitsu Limited: 1 patents #14,843 of 24,456Top 65%
HI Hitachi: 1 patents #17,742 of 28,497Top 65%
HC Hitachi Engineering Co.: 1 patents #187 of 572Top 35%
📍 Hitachinaka, JP: #283 of 2,447 inventorsTop 15%
Overall (All Time): #276,037 of 4,157,543Top 7%
17
Patents All Time

Issued Patents All Time

Showing 1–17 of 17 patents

Patent #TitleCo-InventorsDate
9751311 Fluid ejection device Ryuji Moriyama 2017-09-05
9044980 Platen gap adjustment mechanism 2015-06-02
8651603 Platen gap adjustment mechanism and printer 2014-02-18
7942594 Ribbon cartridge and printing apparatus Shinji Sato, Takumi Kawamura 2011-05-17
D547363 Ink ribbon cartridge Shinji Sato 2007-07-24
6079892 Method for detecting an end portion of a recording medium in a recording apparatus and end portion detection apparatus Naoto Yamaguchi, Hiroshi Ishida, Kazuhiko Yamaguchi, Yukihiro Uchiyama 2000-06-27
5946016 Printer sheet discharge method Kazuo Saito, Michiyo Ichikawa, Yoichi Kobayashi, Tsuyoshi Tomii, Koichi Endo +7 more 1999-08-31
5941523 Sheet end detecting device 1999-08-24
5882130 Paper detection device for printer Naoto Yamaguchi, Hiroshi Ishida, Yukihiro Uchiyama, Kazuhiko Yamaguchi 1999-03-16
5785438 Ribbon mask for impact dot matrix printed Naoto Yamaguchi, Hiroshi Ishida, Kazuhiko Yamaguchi, Yukihiro Uchiyama 1998-07-28
5738457 Paper size determining method and printer in which the method is used Hiroshi Ishida, Naoto Yamaguchi, Yukihiro Uchiyama, Kazuhiko Yamaguchi 1998-04-14
5678488 Printing method and printing apparatus Naoto Yamaguchi, Hiroshi Ishida, Yukihiro Uchiyama, Kazuhiko Yamaguchi 1997-10-21
5648807 Ink jet recording apparatus having an antismear sheet deformation discharge system Kazuo Saito, Michiyo Ichikawa, Seiichi Hirano 1997-07-15
5226741 Printing apparatus and method of forward and reverse sheet feeding to prevent skewing Takashi Takeuchi 1993-07-13
4917512 Apparatus for automatically adjusting a gap between a platen and a print head Takao Mimura, Atsushi Nishizawa 1990-04-17
4680758 Switching system having tone trunk Toshio Shimoe, Koso Murakami 1987-07-14
4582026 Feed-forward type automatic control system Atsushi Takita, Akira Sugano 1986-04-15