MN

Masaaki Namekawa

CC Citizen Holdings Co.: 6 patents #24 of 431Top 6%
KC Kashima Oil Co.: 6 patents #6 of 44Top 15%
CC Citizen Watch Co.: 3 patents #353 of 1,225Top 30%
📍 Kiyose, JP: #9 of 104 inventorsTop 9%
Overall (All Time): #349,818 of 4,157,543Top 9%
14
Patents All Time

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #TitleCo-InventorsDate
9612579 Electronic clock Yu Takyo 2017-04-04
8848492 Electronic watch Yu Takyo 2014-09-30
8692518 Electronic apparatus Takayuki Uchida, Kohichi Satoh 2014-04-08
7961557 Analog electronic watch Teruhiko Fujii, Isao Kitazawa, Takayuki Uchida, Takayuki Hasumi, Takuji Ike 2011-06-14
7408845 Radio corrected clock Takashi Ihara, Masao Sakuyama, Akinari Takada 2008-08-05
7385876 Radio-controlled timepiece, electronic device, time correcting method and computer product Takashi Ihara, Akinari Takada, Masami Fukuda, Minoru Kobayashi 2008-06-10
7372779 Radio controlled timepiece and method of controlling the same Akinari Takada, Takashi Ihara, Masami Fukuda, Minoru Kobayashi 2008-05-13
7190745 Radio-controlled timepiece, standard frequency reception method, and electronic device Akinari Takada, Takashi Ihara 2007-03-13
5811028 Optically active dihydropyran derivative, and liquid crystal composition, liquid crystal device, and racemic mixture comprising the derivative Tatsushi Ishizuka, Mitsunori Takeda, Keizou Itoh 1998-09-22
5698137 Optically active dihydropyran derivative, and liquid crystal composition, liquid crystal device, and racemic mixture comprising the derivative Tatsushi Ishizuka, Mitsunori Takeda, Keizou Itoh 1997-12-16
5595684 Optically active tetrahydropyran derivative, liquid crystal composition, and liquid crystal device containing the same Keizou Itoh, Shinichi Nayuki, Mitsunori Takeda, Yoshinobu Murayama 1997-01-21
5443755 Optically active tetrahydropyrane derivatives, liquid crystal composition and liquid crystal device containing the same Shinichi Nayuki, Keizou Itoh, Mitsunori Takeda, Yoshinobu Murayama 1995-08-22
5368771 Optically active tetrahydropyrane derivatives, liquid crystal composition and liquid crystal device containing the same Shinichi Nayuki, Keizou Itoh, Mitsunori Takeda, Yoshinobu Murayama 1994-11-29
5296616 Optically active fluorine-containing compound Shinichi Nayuki, Keizou Itoh, Mitsunori Takeda, Yoshinobu Murayama 1994-03-22