RK

Ryota Koike

CC Citizen Watch Co.: 19 patents #15 of 1,225Top 2%
CC Citizen Holdings Co.: 1 patents #208 of 431Top 50%
Overall (All Time): #224,261 of 4,157,543Top 6%
20
Patents All Time

Issued Patents All Time

Showing 1–20 of 20 patents

Patent #TitleCo-InventorsDate
9212408 Decorative part with substrate and multi-layer hardening laminate Junji Satoh, Yoshitsugu Shibuya, Maki Hayakawa 2015-12-15
6419997 Guide bush and method of forming hard carbon film over the inner surface of the guide bush Yukio Miya, Osamu Sugiyama, Takashi Toida, Sosaku Kimura, Kunihiko Kokubo 2002-07-16
6337000 Guide bush and method of forming diamond-like carbon film over the guide bush Yukio Miya, Osamu Sugiyama, Takashi Toida 2002-01-08
6264209 Guide bush and method of forming diamond-like carbon film over the guide bush Yukio Miya, Osamu Sugiyama, Takashi Toida 2001-07-24
6217952 Method of forming films over inner surface of cylindrical member Osamu Sugiyama, Yukio Miya, Takashi Toida, Toshiichi Sekine 2001-04-17
6131533 Jig for forming hard carbon film over inner surface of guide bush using the jig Osamu Sugiyama, Yukio Miya, Takashi Toida, Toshiichi Sekine 2000-10-17
6126793 Method of forming films over inner surface of cylindrical member Osamu Sugiyama, Yukio Miya, Takashi Toida, Toshiichi Sekine 2000-10-03
6117496 Method of forming a hard carbon film over an inner surface of a guide bush using a jig Osamu Sugiyama, Yukio Miya, Takashi Toida, Toshiichi Sekine 2000-09-12
6096390 Method of forming a hard carbon film over the inner surface of a guide bush Yukio Miya, Osamu Sugiyama, Takashi Toida, Toshiichi Sekine 2000-08-01
6080445 Method of forming films over insulating material Osamu Sugiyama, Yukio Miya, Takashi Toida 2000-06-27
6056443 Guide bush and method of forming film over guide bush Yukio Miya, Osamu Sugiyama, Takashi Toida, Toshiichi Sekine 2000-05-02
6033533 Method of forming films over inner surface of cylindrical member Osamu Sugiyama, Yukio Miya, Takashi Toida, Toshiichi Sekine 2000-03-07
6020036 Method of forming hard carbon film over the inner surface of guide bush Osamu Sugiyama, Yukio Miya, Takashi Toida, Toshiichi Sekine 2000-02-01
5993680 Method of removing hard carbon film formed on inner circumferential surface of guide bush Osamu Sugiyama, Yukio Miya, Takashi Toida, Toshiichi Sekine 1999-11-30
5965217 Method of forming DLC films over inner surface of cylindrical member Osamu Sugiyama, Yukio Miya, Takashi Toida, Toshiichi Sekine 1999-10-12
5941647 Guide bush and method of forming hard carbon film over the inner surface of the guide bush Yukio Miya, Osamu Sugiyama, Takashi Toida, Toshiichi Sekine 1999-08-24
5939152 Method of forming hard carbon film over the inner surface of guide bush Osamu Sugiyama, Yukio Miya, Takashi Toida, Toshiichi Sekine 1999-08-17
5934321 Valve unit for water mixing valve Yukio Miya, Osamu Sugiyama, Takashi Toida 1999-08-10
5922418 Method of forming a DLC film over the inner surface of guide bush Yukio Miya, Osamu Sugiyama, Takashi Toida, Toshiichi Sekine 1999-07-13
5786570 Heating roller device Yukio Miya, Osamu Sugiyama, Takashi Toida, Yuji Fukazawa 1998-07-28