KY

Keiichiroh Yutani

Ricoh Company: 26 patents #784 of 9,818Top 8%
Overall (All Time): #152,786 of 4,157,543Top 4%
26
Patents All Time

Issued Patents All Time

Showing 1–25 of 26 patents

Patent #TitleCo-InventorsDate
11774826 Electrochromic element and electrochromic light control device Tohru Yashiro, Fuminari Kaneko, Tomoo Fukuda 2023-10-03
11754901 Electrochromic device, wearable device, and method for driving electrochromic device Tohru Yashiro, Fuminari Kaneko, Tohru Hasegawa, Naoki Ura 2023-09-12
11681196 Electrochromic device, control device of electrochromic device, and control method of electrochromic device Tohru Hasegawa 2023-06-20
11630365 Electrochromic element and production method thereof, electrochromic light-adjusting element, electrochromic light-adjusting lens, and electrochromic device Fuminari Kaneko, Yuto Matsuoka, Kayato Ohya, Tohru Yashiro, Tomoo Fukuda +1 more 2023-04-18
11474408 Electronic device, method for producing electronic device, and photochromatic lens unit Yasuhiro Takahashi, Tohru Yashiro, Tomoo Fukuda, Kohji Takeuchi, Tohru Hasegawa +2 more 2022-10-18
11237447 Electrochromic element Tomoo Fukuda, Hiroyuki Takahashi, Koh Fujimura, Tohru Yashiro, Takaaki Konno +1 more 2022-02-01
11221533 Electrochromic device Kohji Takeuchi, Tohru Yashiro, Takahiko Matsumoto, Sukchan Kim, Shun GOTO +2 more 2022-01-11
11209713 Electrochromic element and electrochromic dimming element Satoshi Yamamoto, Kazukiyo Nagai, Tamotsu Horiuchi, Sukchan Kim, Yoshinori Okada +10 more 2021-12-28
11106106 Electrochromic device, electronic dimming eyeglasses, augmented reality eyeglasses, and camera Noboru Sasa, Tohru Yashiro, Tomoo Fukuda, Masato Shinoda, Fuminari Kaneko 2021-08-31
11053267 Electrochromic compound, electrochromic composition, and display element Toshiya Sagisaka, Hiroyuki Takahashi, Takashi Okada, Shigenobu Hirano, Tohru Yashiro +7 more 2021-07-06
10626133 Electrochromic compound, electrochromic composition, and display element Toshiya Sagisaka, Hiroyuki Takahashi, Takashi Okada, Shigenobu Hirano, Tohru Yashiro +7 more 2020-04-21
10527905 Electrochromic element, display device and driving method thereof Fuminari Kaneko, Koh Fujimura, Hidekazu Yaginuma, Takahiko Matsumoto, Mamiko Inoue +1 more 2020-01-07
10495937 Electrochromic device and production method thereof Tohru Yashiro, Sukchan Kim, Satoshi Yamamoto, Takahiko Matsumoto, Fuminari Kaneko +2 more 2019-12-03
10281793 Electrochromic dimming device and electrochromic driving device Atsushi Ohshima, Shigenobu Hirano, Takahiko Matsumoto, Hidekazu Yaginuma, Kazuaki Tsuji +6 more 2019-05-07
10126623 Electrochromic device and electrochromic dimming device Shun GOTO, Tohru Yashiro, Kohji Takeuchi, Sukchan Kim, Takahiko Matsumoto +3 more 2018-11-13
10093693 Electrochromic compound, electrochromic composition, and display element Toshiya Sagisaka, Hiroyuki Takahashi, Takashi Okada, Shigenobu Hirano, Tohru Yashiro +7 more 2018-10-09
10012885 Electrochromic display device Yoshinori Okada, Yoshihisa Naijo, Tohru Yashiro, Shigenobu Hirano, Hiroyuki Takahashi +5 more 2018-07-03
9932522 Electrochromic compound, electrochromic composition, display element, and dimming element Daisuke Goto, Toshiya Sagisaka, Shigenobu Hirano, Satoshi Yamamoto, Mamiko Inoue +9 more 2018-04-03
9891497 Electrochromic device and method for producing electrochromic device Tohru Yashiro, Kohji Takeuchi, Sukchan Kim, Shun GOTO, Yuuma Usui +11 more 2018-02-13
9869918 Electrochromic apparatus, electrochromic element, and method of manufacturing electrochromic element Takahiko Matsumoto, Hidekazu Yaginuma, Koh Fujimura, Fuminari Kaneko, Mamiko Inoue +3 more 2018-01-16
9829762 Electrochromic display element, display device, information system, and electrochromic dimming lens Hiroyuki Takahashi, Tamotsu Horiuchi, Tohru Yashiro, Yoshinori Okada, Sukchan Kim +8 more 2017-11-28
9688706 Electrochromic compound, electrochromic composition, display element, and dimming element Mamiko Inoue, Masaomi Sasaki, Tohru Yashiro, Yoshinori Okada, Sukchan Kim +9 more 2017-06-27
9632385 Electrochromic display device with intermediate display electrode containing electrically conductive fine particle and a method for manufacturing such device Yoshinori Okada, Tohru Yashiro, Yoshihisa Naijo, Sukchan Kim, Shigenobu Hirano +5 more 2017-04-25
9500926 Electrochromic display element and image display device Koh Fujimura, Tohru Yashiro, Shigenobu Hirano, Hiroyuki Takahashi, Yoshinori Okada +3 more 2016-11-22
9304368 Electrochromic device and production method thereof Tohru Yashiro, Shigenobu Hirano, Toshiya Sagisaka, Mamiko Inoue, Hiroyuki Takahashi +6 more 2016-04-05