HE

Hideaki Ema

Ricoh Company: 14 patents #1,578 of 9,818Top 20%
UN Unknown: 4 patents #4,220 of 83,584Top 6%
Overall (All Time): #356,681 of 4,157,543Top 9%
14
Patents All Time

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #TitleCo-InventorsDate
6656879 Method of reversible selective manifestation of different states of functional element Kyoji Tsutsui, Takehito Yamaguchi, Masaru Shimada, Hiroshi Goto, Ichiro Sawamura +5 more 2003-12-02
5741752 Transparent thermal recording medium Hiroshi Goto, Kiyoshi Sakai 1998-04-21
5739077 Transparent thermal recording medium Hiroshi Goto, Kiyoshi Sakai 1998-04-14
5432534 Reversible thermosensitive coloring composition, recording medium, recording method, and image display apparatus using the recording medium Shoji Maruyama, Hiroshi Goto, Eiichi Kawamura, Masaru Shimada, Keishi Kubo +5 more 1995-07-11
5395433 Reversible thermosensitive coloring composition, recording medium, recording method, and image display apparatus using the recording medium Shoji Maruyama, Hiroshi Goto, Eiichi Kawamura, Masaru Shimada, Keishi Kubo +5 more 1995-03-07
5296439 Reversible thermosensitive coloring recording medium, recording method, and image display apparatus using the recording medium Shoji Maruyama, Hiroshi Goto, Eiichi Kawamura, Masaru Shimada, Keishi Kubo +5 more 1994-03-22
4840922 Method of manufacturing masked semiconductor laser Hiroshi Kobayashi, Haruhiko Machida, Jun Akedo, Makoto Harigaya, Yasushi Ide 1989-06-20
4823001 Method of measuring the amount of movement of an object having uniformly periodic structure Hiroshi Kobayashi, Haruhiko Machida, Jun Akedo 1989-04-18
4603087 Fixing roll Yasuo Hirano, Kazuo Nojima 1986-07-29
4469771 Electrophotographic light-sensitive member with thin overlayer Haruo Hasegawa, Kenji Seki, Masahide Harada, Shiro Yamane 1984-09-04
4379820 Electrophotographic photoconductor of halogen-doped Se-Te alloy layers Hitoshi Nakamura, Hideyo Nishizima, Makoto Harigaya, Satoshi Otomura 1983-04-12
4286035 Halogen doped selenium-tellurium alloy electrophotographic photoconductor Hideyo Nishizima, Hiroshi Tamura, Hideki Akiyoshi 1981-08-25
4225648 Electrophotographic light-sensitive member Haruo Hasegawa, Kenji Seki, Masahide Harada, Shiro Yamane 1980-09-30
4191568 Photosensitive material for electrophotography with dye containing overlayer Satoshi Otomura, Chikara Imai, Kiyoshi Sakai 1980-03-04