MO

Makoto Obu

Ricoh Company: 45 patents #286 of 9,818Top 3%
Overall (All Time): #63,517 of 4,157,543Top 2%
46
Patents All Time

Issued Patents All Time

Showing 26–46 of 46 patents

Patent #TitleCo-InventorsDate
5848329 Image forming apparatus having a mounting/dismounting mechanism Yuichi Aoyama, Masaki Hiroi, Katsuaki Miyawaki, Nobuhiko Umezawa, Masami Hiramatsu 1998-12-08
5845186 Wet image forming apparatus including an intermediate transfer body having projections 1998-12-01
5754202 Ink jet recording apparatus Takuro Sekiya, Takayuki Yamaguchi, Mitsuru Shingyouchi, Michio Umezawa, Tetsuro Hirota +3 more 1998-05-19
5666616 Wet-type image forming apparatus for forming a condensed toner image Mie Yoshino, Takeo Tsukamoto, Seiichi Miyakawa, Yusuke Takeda, Masami Hiramatsu 1997-09-09
5652080 Methods and apparatus to duplicate images on various image carrying media using liquid carrier based developer Mie Yoshino, Takeo Tsukamoto 1997-07-29
5619243 Image recording and erasing method Yoshihiko Hotta, Akira Suzuki, Takashi Kitamura 1997-04-08
5612278 Reversible image recording method using reversible thermosensitive recording material Fumihito Masubuchi, Yoshihiko Hotta, Yusuke Takeda, Toshio Kawakubo, Katsuaki Miyawaki +1 more 1997-03-18
5610725 Communication system for managing data of resources of image forming unit Yasuo Kawada, Hidenori Sakai, Katsuhiro Echigo, Yasuhiro Kawashima, Hidetoshi Yano +1 more 1997-03-11
5517228 Apparatus for displaying a recording medium sheet and printing an image thereon Masaru Shimada, Itsuo Ikeda, Noriyoshi Tarumi, Hiroshi Goto 1996-05-14
5504590 Communication system for managing data of resources of image forming unit Yasuo Kawada, Hidenori Sakai, Katsuhiro Echigo, Yasuhiro Kawashima, Hidetoshi Yano +1 more 1996-04-02
5493365 Operating section for an image forming apparatus Hideaki Matsui, Nobuaki Tomidokoro, Shigeru Yoshiki, Shigeru Watanabe, Shinichi Kawahara +6 more 1996-02-20
5379058 Recording apparatus using a thermosensitive recording medium Yoshihiko Hotta, Fumihito Masubuchi, Katsuaki Miyawaki, Yusuke Takeda, Toshio Kawakubo 1995-01-03
5371522 Apparatus for erasing and recording data in a thermosensitive recording medium Katsuaki Miyawaki, Yusuke Takeda, Toshio Kawakubo, Yoshihiko Hotta, Fumihito Masubuchi 1994-12-06
5300952 Thermal image forming equipment forms image directly on image carrier or paper sheet Takeo Wada, Toshiyuki Kawanishi, Noriyoshi Tarumi, Masato Igarashi, Takashi Mori +2 more 1994-04-05
5235384 Image forming apparatus with replaceable process units Seiji Oka, Tomoji Ishikawa, Tsukuru Kai, Hisashi Ishijima, Hidetoshi Yano 1993-08-10
5208612 Image recording apparatus constituting of selectable units Minoru Suzuki, Koichi Noguchi, Takashi Mori, Akira Ishida, Koichiro Jinnai 1993-05-04
5051760 Direct image recording apparatus using toner Hisashi Shoji, Hidetoshi Yano, Shinsuke Kikui, Junichi Terai, Tomoko Ogawa 1991-09-24
4930438 Developing device using a single component developer Hiromi Demizu, Hidetoshi Yano, Ryubun Seimiya, Noriyoshi Tarumi 1990-06-05
4760422 Developing device using single component toner Ryubun Seimiya, Noriyoshi Tarumi, Hiromi Demizu, Hidetoshi Yano 1988-07-26
4696255 Developing apparatus Hidetoshi Yano, Ryubun Seimiya, Noriyoshi Tarumi, Hiromi Demizu 1987-09-29
4589730 Light transmission control apparatus using air bubbles 1986-05-20