YK

Yasuo Kitajima

CC Citizen Watch Co.: 12 patents #45 of 1,225Top 4%
📍 Nishitokyo, JP: #26 of 277 inventorsTop 10%
Overall (All Time): #406,081 of 4,157,543Top 10%
12
Patents All Time

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #TitleCo-InventorsDate
11650548 Timepiece Kenji Shimoda, Daisuke Tokunaga, Shinnosuke SAKATA, Koki Mine, Yuta Furudate +1 more 2023-05-16
11567454 Electromechanical transducer and electronic timepiece Kenji Shimoda, Shinnosuke SAKATA, Daisuke Tokunaga 2023-01-31
11101748 Method of manufacturing an electrostatic induction transducer, electrostatic induction transducer, and wristwatch Toshinari Maeda, Makoto Watanabe, Izumi Yamamoto 2021-08-24
10579019 Watch Hiroyuki Takahashi, Kyohei Miyajima, Yuichi Naito 2020-03-03
6477114 Electronic timepiece with calendar device Takeo Mutoh, Haruhiko Higuchi, Hiroyuki Koike 2002-11-05
6385136 Electronic timepiece with calendar month-end non-correction device Haruhiko Higuchi, Takeo Mutoh, Hiroyuki Koike 2002-05-07
6278661 Electronic timepiece with calendar month-end non-correction device Haruhiko Higuchi, Takeo Mutoh, Hiroyuki Koike 2001-08-21
6240052 Electronic watch with calendar Takeo Mutoh, Haruhiko Higuchi, Hiroyuki Koike 2001-05-29
5966344 Watch containing light transmitting metallic dial Toshio Umemoto, Masami Fukuda, Kenji Shimoda, Isamu Kobayashi, Yoshio Katsuki +1 more 1999-10-12
5898646 Watch with extended dial Masahiro Kasaya, Takayuki Hasumi 1999-04-27
5703837 Watch with light transmitting type display plate Toshio Umemoto, Masami Fukuda, Kenji Shimoda, Isamu Kobayashi, Yurie Udou 1997-12-30
5592443 Structure of a watch and assembling method thereof Masahiro Kasaya, Takayuki Hasumi 1997-01-07