MU

Michio Umezawa

Ricoh Company: 16 patents #1,360 of 9,818Top 15%
Overall (All Time): #300,293 of 4,157,543Top 8%
16
Patents All Time

Issued Patents All Time

Showing 1–16 of 16 patents

Patent #TitleCo-InventorsDate
8186793 Image processing method, program, image processing apparatus, image forming apparatus, image forming system Shigetoshi Hosaka, Masakazu Yoshida, Takashi Kimura, Masanori Hirano, Takahiro Ike +3 more 2012-05-29
7950770 Method and droplet-ejecting head for droplet-ejecting recording apparatus capable of achieving high recording image quality Toshiroh Tokuno, Kaichi Ueno, Kouji Ohnishi 2011-05-31
7710620 Image processing method, recorded matter, storage medium, image processing apparatus, image forming method, image forming apparatus, image forming system, and ink Shigetaka Sakakibara, Takashi Kimura, Naoya Morohoshi, Tomohiro Inoue, Masanori Hirano +2 more 2010-05-04
5818482 Ink jet printing head Yoshihisa Ohta, Shuzo Matsumoto, Taeko Murai, Hideyuki Makita, Tsutomu Sasaki +3 more 1998-10-06
5754202 Ink jet recording apparatus Takuro Sekiya, Takayuki Yamaguchi, Mitsuru Shingyouchi, Makoto Obu, Tetsuro Hirota +3 more 1998-05-19
4834533 Measuring the refractive index of liquid Masanori Horike, Yutaka Ebi 1989-05-30
4739347 Ink supply system for use in an ink-jet printer Chuji Ishikawa 1988-04-19
4660825 Sheet clamping device 1987-04-28
4626874 Liquid level detector for ink jet printer Toshiharu Murai, Koichiro Jinnai, Minoru Ameyama 1986-12-02
4524365 Receptacle for waste ink collection in ink jet recording apparatus Sadao Kakeno, Minoru Ameyama, Kenichi Ichikawa, Tomoyuki Yamaguchi 1985-06-18
4451169 Paper loading apparatus 1984-05-29
4449135 Ink ejection head 1984-05-15
4429317 Ink ejection head Osamu Naruse, Tatsuya Furukawa, Tamio Ohori, Isokazu Furukawa, Sadao Kakeno 1984-01-31
4420150 Apparatus and method for separating a single sheet from a stack and conveying it 1983-12-13
4388627 Ink-jet printing head 1983-06-14
4369964 Sheet feed apparatus for printer or the like Koichiro Jinnai 1983-01-25