YK

Yukio Konagaya

Ricoh Company: 13 patents #1,714 of 9,818Top 20%
Overall (All Time): #390,096 of 4,157,543Top 10%
13
Patents All Time

Issued Patents All Time

Showing 1–13 of 13 patents

Patent #TitleCo-InventorsDate
6060425 Reversible thermosensitive recording material Kunichika Morohoshi, Yoshihiko Hotta, Makoto Kawaguchi, Fumihito Masubuchi, Nobuo Yamada +1 more 2000-05-09
5985077 Reversible thermosensitive recording medium and method of producing the same Takao Igawa, Fumihito Masubuchi, Akihide Itoh, Tohru Nogiwa 1999-11-16
5900900 Image recording method using reversible thermosensitive recording material and image display apparatus using the same Yoshihiko Hotta, Kunichika Morohoshi, Makoto Kawaguchi, Toru Nogiwa, Akira Suzuki +1 more 1999-05-04
5762998 Method of producing reversible thermosensitive recording medium Takao Igawa, Fumihito Masubuchi, Akihide Itoh, Tohru Nogiwa 1998-06-09
5643851 Reversible thermosensitive recording label and reversible thermosensitive recording card Takao Igawa, Akihide Ito, Tohru Nogiwa, Tsutomu Kagawa, Nobuo Yamada 1997-07-01
5625524 Reversible thermosensitive recording medium and method of producing the same Takao Igawa, Fumihito Masubuchi, Akihide Itoh, Tohru Nogiwa 1997-04-29
5556827 Method for producing reversible thermosensitive recording material Toru Nogiwa, Yoshihiko Hotta, Kunichika Morohoshi, Makoto Kawaguchi, Akira Suzuki +2 more 1996-09-17
5321239 Card processing method Fumihito Masubuchi, Yoshihiko Hotta, Kunichika Morohoshi, Makoto Kawaguchi, Toru Nogiwa +1 more 1994-06-14
5283220 Reversible thermosensitive recording material Makoto Kawaguchi, Yoshihiko Hotta, Kunichika Morohoshi, Toru Nogiwa, Akira Suzuki +3 more 1994-02-01
5219820 Reversible thermosensitive recording material and method of producing the same Kunichika Morohoshi, Yoshihiko Hotta, Makoto Kawaguchi, Toru Nogiwa, Akira Suzuki 1993-06-15
5158924 Reversible thermosensitive recording material and image display method of using the same Yoshihiko Hotta, Makoto Kawaguchi, Toru Nogiwa, Kunichika Morohoshi, Akira Suzuki +2 more 1992-10-27
5158926 Reversible thermosensitive recording material Yoshihiko Hotta, Makoto Kawaguchi, Kunichika Morohoshi, Toru Nogiwa, Akira Suzuki +1 more 1992-10-27
4833021 Non-impact electrothermic recording material Ryochi Shimura 1989-05-23