SH

Shigenobu Hirano

Ricoh Company: 47 patents #255 of 9,818Top 3%
Overall (All Time): #59,634 of 4,157,543Top 2%
47
Patents All Time

Issued Patents All Time

Showing 26–47 of 47 patents

Patent #TitleCo-InventorsDate
8937758 Electrochromic display device Sukchan Kim, Tohru Yashiro, Koh Fujimura, Hiroyuki Takahashi, Yoshihisa Naijo +2 more 2015-01-20
8902151 Controllable electrochromic display device Tohru Yashiro, Yoshihisa Naijo, Koh Fujimura, Akishige Murakami, Hiroyuki Takahashi +1 more 2014-12-02
8743048 Electrochromic display element, display device and information apparatus Hiroyuki Takahashi, Yoshinori Okada, Tohru Yashiro, Akishige Murakami, Yoshihisa Naijo 2014-06-03
8736941 Electrochromic display apparatus and method of manufacturing the same Yoshihisa Naijo, Tohru Yashiro, Masahiro Yanagisawa, Masahiro Masuzawa, Akishige Murakami +3 more 2014-05-27
8693939 Fixing device and image forming apparatus having an anti-tack agent applicator Hidenori Tomono, Yasuo Katano, Yukimichi Someya, Tsuneo Kurotori, Yuko Arizumi +3 more 2014-04-08
8687262 Ion conductor and electrochromic display device Tohru Yashiro, Koh Fujimura, Yoshihisa Naijo, Yoshinori Okada, Hiroyuki Takahashi +1 more 2014-04-01
8663893 Fixing solution, fixing method, fixing device, image forming method and image forming apparatus Yasuo Katano, Tsuneo Kurotori, Yukimichi Someya, Fuminari Kaneko, Yuko Arizumi +3 more 2014-03-04
8625186 Electrochromic compound, electrochromic composition, and display device Takashi Okada, Tsutomu Sato 2014-01-07
8593715 Electrochromic compound, electrochromic composition, and display element Tohru Yashiro, Yousuke Manabe, Satoshi Hayashi 2013-11-26
8531754 Electrochromic display element Koh Fujimura, Tohru Yashiro, Yoshihisa Naijo 2013-09-10
8463171 Fixing solution, fixing method, fixing device, image forming method and image forming apparatus Yasuo Katano, Tsuneo Kurotori, Yuko Arizumi, Shigeo Takeuchi, Hidekazu Yaginuma +3 more 2013-06-11
8384983 Electrochromic display device, fabrication method therefor, and driving method therefor Tohru Yashiro, Yoshihisa Naijo, Koh Fujimura, Masahiro Yanagisawa, Masahiro Masuzawa +1 more 2013-02-26
8080683 Electrochromic compound and electrochromic display device using the same Takeshi Shibuya, Hiroshi Kondo, Yuki Nakamura, Yukiko Abe, Tohru Yashiro 2011-12-20
7894118 Electrochromic compound, electrochromic composition and display device Takeshi Shibuya, Hiroshi Kondo, Yuki Nakamura, Yukiko Abe, Tohru Yashiro 2011-02-22
7830584 Organic-inorganic composite material and method for producing the same, and functional electrode and functional device Takeshi Shibuya 2010-11-09
7663797 Multicolor display element Takuji Kato, Hiroyuki Takahashi, Ikue Kawashima, Takeshi Shibuya 2010-02-16
7570412 Reversible recording material and displaying element Takeshi Shibuya 2009-08-04
7525716 Display device and display apparatus Hiroyuki Takahashi, Ikue Kawashima, Takeshi Shibuya 2009-04-28
7489432 Electrochromic display device and display apparatus Takeshi Shibuya, Satoshi Uchida, Yoshitaka Sanehira 2009-02-10
7474322 Image display medium, process for forming image, and multicolor image-forming apparatus Hiroyuki Takahashi, Ikue Kawashima 2009-01-06
7333259 Multicolor display element Takuji Kato, Hiroyuki Takahashi, Ikue Kawashima, Takeshi Shibuya 2008-02-19
7029833 Image display medium, process for forming image, and multicolor image-forming apparatus Hiroyuki Takahashi, Ikue Kawashima 2006-04-18