TH

Takayuki Hasumi

CC Citizen Watch Co.: 4 patents #269 of 1,225Top 25%
CC Citizen Holdings Co.: 3 patents #70 of 431Top 20%
📍 Nishitokyo, JP: #50 of 277 inventorsTop 20%
Overall (All Time): #747,059 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
8295128 Radio-controlled timepiece Moto Yamashita 2012-10-23
7961557 Analog electronic watch Teruhiko Fujii, Isao Kitazawa, Masaaki Namekawa, Takayuki Uchida, Takuji Ike 2011-06-14
7746731 Electronic device with solar cell Eiki Murakami, Takeo Mutoh, Kenji Shimoda 2010-06-29
6846998 Switch connecting structure for timepiece Shinichi Yamada, Kenji Shimoda 2005-01-25
6244742 Self-winding electric power generation watch with additional function Shinichi Yamada, Kenji Miyasaka, Kazuhide Kinoshita 2001-06-12
5898646 Watch with extended dial Masahiro Kasaya, Yasuo Kitajima 1999-04-27
5592443 Structure of a watch and assembling method thereof Masahiro Kasaya, Yasuo Kitajima 1997-01-07