TH

Tetsuro Hirota

Ricoh Company: 35 patents #475 of 9,818Top 5%
Overall (All Time): #98,622 of 4,157,543Top 3%
35
Patents All Time

Issued Patents All Time

Showing 26–35 of 35 patents

Patent #TitleCo-InventorsDate
7914096 Image forming apparatus, landing position shift correction method, and landing position shift correction sheet member Takumi Hagiwara, Noboru Sawayama, Kenichi Kawabata, Mamoru Yorimoto, Tetsu Morino 2011-03-29
6331052 Ink jet printing apparatus Taeko Murai, Shuzo Matsumoto, Mitsumi Fujii, Tomoaki Nakano, Hideyuki Makita +2 more 2001-12-18
6147766 Printing apparatus for increasing efficiency in transmitting image data between internal control units Yoshiaki Hanyu, Tatsuhiko Oikawa 2000-11-14
6053597 Ink jet recording apparatus and method for automatically changing recording operation mode when interchangeable recording head unit is replaced 2000-04-25
5821953 Ink-jet head driving system Tomoaki Nakano 1998-10-13
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, Michio Umezawa +3 more 1998-05-19
4661822 Ink jet printer Shigeyuki Araki, Shizuo Yokoyama, Haruyoshi Masui, Toshitaka Hirata 1987-04-28
4644372 Ink jet printer 1987-02-17
4620249 Apparatus for driving a floppy disc Masayuki Suzaki, Tetsuo Kanno, Takeziro Koguchi 1986-10-28