Yoshikazu Munakata

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Nishi-ku, JP

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Patents Grantslast 30 patents

Information Patent Grant
Clip-on type eyeglasses
- Patent number 9,891,449
- Issue date Feb 13, 2018
- SUN-RAY CORPORATION
- Yoshikazu Munakata
- G02 - OPTICS
Information Patent Grant
Method for manufacturing bifocal lens
- Patent number 7,510,281
- Issue date Mar 31, 2009
- Sun-Ray Corporation
- Yoshikazu Munakata
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Sunglass with multistage stop function and attachment fitting thereof
- Patent number 7,063,419
- Issue date Jun 20, 2006
- Sunray Corporation
- Yoshikazu Munakata
- G02 - OPTICS
Information Patent Grant
Method for producing a dioptric photocromic semi-finished lens
- Patent number 5,800,744
- Issue date Sep 1, 1998
- Yoshikazu Munakata
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
EYEGLASS LENS, EYEGLASSES, AND EYEGLASS LENS MANUFACTURING METHOD
- Publication number 20220244572
- Publication date Aug 4, 2022
- Miyoshi Industrial Enterprise Inc.
- Kazuyuki MIYOSHI
- G02 - OPTICS
Information Patent Application
CLIP-ON TYPE EYEGLASSES
- Publication number 20170017096
- Publication date Jan 19, 2017
- SUN-RAY Corporation
- Yoshikazu Munakata
- G02 - OPTICS
Information Patent Application
Method for Manufacturing Bifocal Lens
- Publication number 20090086161
- Publication date Apr 2, 2009
- SUN-RAY Corporation
- Yoshikazu Munakata
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
SUNGLASS WITH MULTISTAGE STOP FUNCTION AND ATTACHMENT FITTING THEREOF
- Publication number 20060119786
- Publication date Jun 8, 2006
- Sunray Corporation and Sasamata Co., Ltd.
- Yoshikazu Munakata
- G02 - OPTICS