KT

Kyoji Tsutsui

Ricoh Company: 44 patents #294 of 9,818Top 3%
MK Miyoshi Yushi Kabushiki Kaisha: 2 patents #14 of 28Top 50%
RC Richo Company: 1 patents #3 of 57Top 6%
Overall (All Time): #65,963 of 4,157,543Top 2%
45
Patents All Time

Issued Patents All Time

Showing 1–25 of 45 patents

Patent #TitleCo-InventorsDate
7553796 Phenol compound, reversible thermosensitive recording medium, reversible thermosensitive recording label, reversible thermosensitive recording member, image-processing apparatus and image-processing method Satoshi Yamamoto, Hiromi Furuya, Kyohji Okada 2009-06-30
7456132 Phenol compound, reversible thermosensitive recording medium, reversible thermosensitive recording label, reversible thermosensitive recording member, image-processing apparatus and imaging-processing method Satoshi Yamamoto, Hiromi Furuya, Kyohji Okada, Kunio Hayakawa, Shinya Kawahara +1 more 2008-11-25
6677273 Erasable recording material capable of inputting additional information written thereon and information recording system and information recording method using the recording material Masafumi Torii, Hiroaki Matsui, Hitoshi Hattori, Toshiyuki Furuta, Tomohiko Beppu 2004-01-13
6656879 Method of reversible selective manifestation of different states of functional element Takehito Yamaguchi, Hideaki Ema, Masaru Shimada, Hiroshi Goto, Ichiro Sawamura +5 more 2003-12-02
6579826 Reversible thermosensitive recording medium and image forming and erasing method using the recording medium Hiromi Furuya, Tadafumi Tatewaki, Satoshi Arai, Takeshi Shibuya 2003-06-17
6432518 Erasable recording material capable of inputting additional information written thereon and information recording system and information recording method using the recording material Masafumi Torii, Hiroaki Matsui, Hitoshi Hattori, Toshiyuki Furuta, Tomohiko Beppu 2002-08-13
6154243 Reversible thermal recording method and apparatus therefor Tadafumi Tatewaki, Hiromi Furuya, Fumio Kawamura, Atsushi Kutami, Masafumi Torii +2 more 2000-11-28
6090192 Reversible thermosensitive coloring composition and reversible thermosensitive recording medium using same Masafumi Torii, Hiroaki Matsui, Hiromi Furuya, Fumio Kawamura, Katsushi Sugiyama +4 more 2000-07-18
6090508 Optically anisotropic recording medium and method of recording and erasing information using the same Akio Kojima, Masafumi Ohta, Ryohei Miyake 2000-07-18
6090748 Reversible thermosensitive recording material and recording method and recording apparatus therefor Hiromi Furuya, Tadafumi Tatewaki, Masafumi Torii, Fumio Kawamura, Hiroaki Matsui +1 more 2000-07-18
6063173 Reversible thermosensitive coloring composition and reversible thermosensitive recording medium using the same Masafumi Torii, Hiromi Furuya, Masaru Shimada 2000-05-16
6001159 Reversible thermosensitive coloring composition and reversible thermosensitive recording medium using the same Hiromi Furuya, Masafumi Torii, Masaru Shimada 1999-12-14
5981429 Reversible thermosensitive recording medium Fumio Kawamura, Tadafumi Tatewaki, Hiromi Furuya 1999-11-09
5981115 Reversible thermosensitive recording material Hiromi Furuya, Tadafumi Tatewaki, Fumio Kawamura 1999-11-09
5955225 Reversible thermosensitive coloring composition and reversible thermosensitive recording medium using same Hiromi Furuya, Masafumi Torii, Masaru Shimada, Fumio Kawamura, Katsushi Sugiyama +4 more 1999-09-21
5942377 Reversible thermosensitive composition and reversible thermosensitive recording medium using same Masafumi Torii, Tadafumi Tatewaki, Hiroaki Matsui, Hiromi Furuya, Masaru Shimada +5 more 1999-08-24
5932516 Reversible thermosensitive coloring composition and reversible thermosensitive recording medium using the same Masafumi Torii, Hiromi Furuya, Masaru Shimada 1999-08-03
5891823 Reversible thermosensitive recording medium Masafumi Torii, Hiroaki Matsui, Hiromi Furuya, Fumio Kawamura, Katsushi Sugiyama +4 more 1999-04-06
5868821 Thermally reversible color forming composition and thermally reversible recording medium using the thermally reversible color forming composition Masafumi Torii, Shoji Maruyama, Fumio Kawamura, Hiromi Furuya, Katsuhisa Kamio +6 more 1999-02-09
5866505 Reversible thermosensitive coloring composition and reversible thermosensitive recording medium using the same Hiromi Furuya, Masafumi Torii, Masaru Shimada 1999-02-02
5703005 Thermosensitive coloring composition and reversible thermosensitive recording medium using same Masafumi Torii, Hiromi Furuya, Masaru Shimada 1997-12-30
5641724 Reversible thermosensitive coloring composition and a thermosensitive recording medium using thereof Takehito Yamaguchi, Masaru Shimada 1997-06-24
5585320 Reversible thermosensitive coloring recording method, recording medium and recording apparatus for the recording method Takehito Yamaguchi 1996-12-17
5552364 Reversible theromosensitive coloring recording method, recording medium and recording apparatus for the recording method Takehito Yamaguchi 1996-09-03
5534907 Reversible thermosensitive coloring recording method, recording medium and recording apparatus for the recording method Takehito Yamaguchi 1996-07-09