Shuji Naka

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Huchu, JP

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Patents Grantslast 30 patents

Information Patent Grant
Radio wave watch
- Patent number 11,656,582
- Issue date May 23, 2023
- Citizen Watch Co., Ltd.
- Yoshiyasu Watanabe
- G04 - HOROLOGY
Information Patent Grant
Portable radio-controlled watch
- Patent number 11,150,612
- Issue date Oct 19, 2021
- Citizen Watch Co., Ltd.
- Shuji Naka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Liquid crystal optical element and optical pickup apparatus
- Patent number 8,451,421
- Issue date May 28, 2013
- Citizen Holdings Co., Ltd.
- Shuji Naka
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical pickup apparatus and liquid crystal optical element
- Patent number 8,098,352
- Issue date Jan 17, 2012
- Citizen Holdings Co., Ltd.
- Naoki Fujii
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
RADIO WAVE WATCH
- Publication number 20200319605
- Publication date Oct 8, 2020
- CITIZEN WATCH CO., LTD
- Yoshiyasu WATANABE
- G04 - HOROLOGY
Information Patent Application
PORTABLE RADIO-CONTROLLED WATCH
- Publication number 20200301371
- Publication date Sep 24, 2020
- CITIZEN WATCH CO., LTD.
- Ken KITAMURA
- G04 - HOROLOGY
Information Patent Application
RADIO-CONTROLLED WATCH
- Publication number 20200089170
- Publication date Mar 19, 2020
- Citizen Watch Co., Ltd.
- Ken KITAMURA
- G04 - HOROLOGY
Information Patent Application
PORTABLE RADIO-CONTROLLED WATCH
- Publication number 20190265655
- Publication date Aug 29, 2019
- Citizen Watch Co., Ltd.
- Shuji NAKA
- G04 - HOROLOGY
Information Patent Application
PORTABLE RADIO-CONTROLLED WATCH
- Publication number 20190094817
- Publication date Mar 28, 2019
- Citizen Watch Co., Ltd.
- Ken KITAMURA
- G04 - HOROLOGY
Information Patent Application
LIQUID CRYSTAL OPTICAL ELEMENT AND OPTICAL PICKUP APPARATUS
- Publication number 20090167965
- Publication date Jul 2, 2009
- Shuji Naka
- G02 - OPTICS
Information Patent Application
Optical pickup apparatus and liquid crystal optical element
- Publication number 20070211185
- Publication date Sep 13, 2007
- CITIZEN WATCH CO., LTD.
- Naoki Fujii
- G02 - OPTICS