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Takeshi Koyano
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Polymer material for use in optical communication parts
Patent number
6,624,255
Issue date
Sep 23, 2003
Oki Electric Industry Co., Ltd.
Takeshi Koyano
G02 - OPTICS
Information
Patent Grant
Polymer pattern forming method
Patent number
6,372,411
Issue date
Apr 16, 2002
Oki Electric Industry Co., Ltd.
Takeshi Koyano
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Optical waveguide made of polymer material and a method of fabricat...
Patent number
6,327,415
Issue date
Dec 4, 2001
Oki Electric Industry Co., Ltd.
Takeshi Koyano
G02 - OPTICS
Information
Patent Grant
Diazonium salt for thermosensitive recording medium
Patent number
5,935,756
Issue date
Aug 10, 1999
Oki Electric Industry Co., Ltd.
Katsuaki Kaifu
C07 - ORGANIC CHEMISTRY
Patents Applications
last 30 patents
Information
Patent Application
BILL PROCESSING DEVICE, REGISTER DEVICE, CHANGE MACHINE, DISTRIBUTI...
Publication number
20110036682
Publication date
Feb 17, 2011
Oki Electric Industry Co., Ltd.
Takeshi Koyano
G07 - CHECKING-DEVICES
Information
Patent Application
Free Sample Distributing System, Free Sample Distributing Device, F...
Publication number
20100131096
Publication date
May 27, 2010
Oki Electric Industry Co., Ltd.
Takeshi Koyano
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Optical waveguide made of polymer material and a method of fabricat...
Publication number
20020021883
Publication date
Feb 21, 2002
Takeshi Koyano
G02 - OPTICS