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Hirotoshi TAKAHASHI
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Okazaki-Shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Spectacle lens and spectacles
Patent number
11,966,102
Issue date
Apr 23, 2024
Tokai Optical Co., Ltd.
Hirotoshi Takahashi
G02 - OPTICS
Information
Patent Grant
Optical plastic product, and plastic spectacle lens and spectacles
Patent number
11,709,292
Issue date
Jul 25, 2023
Tokai Optical Co., Ltd.
Hirotoshi Takahashi
G02 - OPTICS
Information
Patent Grant
Optical product, plastic spectacle lens, and spectacles
Patent number
11,668,957
Issue date
Jun 6, 2023
Tokai Optical Co., Ltd.
Hirotoshi Takahashi
G02 - OPTICS
Information
Patent Grant
Plastic spectacle lens and spectacles
Patent number
11,422,287
Issue date
Aug 23, 2022
Tokai Optical Co., Ltd.
Koji Imai
G02 - OPTICS
Information
Patent Grant
ND filter with plastic base material, and ND filter with plastic ba...
Patent number
10,663,634
Issue date
May 26, 2020
Tokai Optical Co., Ltd.
Ryosuke Suzuki
G02 - OPTICS
Information
Patent Grant
Optical product, and spectacle lens and spectacles
Patent number
10,107,941
Issue date
Oct 23, 2018
Tokai Optical Co., Ltd.
Hirotoshi Takahashi
G02 - OPTICS
Information
Patent Grant
Optical product and spectacle lens
Patent number
10,101,502
Issue date
Oct 16, 2018
Tokai Optical Co., Ltd.
Hirotoshi Takahashi
G02 - OPTICS
Information
Patent Grant
Optical product, and spectacle lens and spectacles
Patent number
10,031,349
Issue date
Jul 24, 2018
Tokai Optical Co., Ltd.
Hirotoshi Takahashi
G02 - OPTICS
Information
Patent Grant
Optical product and spectacle plastic lens
Patent number
9,651,713
Issue date
May 16, 2017
Tokai Optical Co., Ltd.
Hirotoshi Takahashi
G02 - OPTICS
Information
Patent Grant
Plastic optical product and plastic lens for spectacles
Patent number
9,022,561
Issue date
May 5, 2015
Tokai Optical Co., Ltd.
Tsuyoshi Fukagawa
G02 - OPTICS
Information
Patent Grant
Optical product and spectacle plastic lens
Patent number
8,908,275
Issue date
Dec 9, 2014
Tokai Optical Co., Ltd.
Tsuyoshi Fukagawa
G02 - OPTICS
Information
Patent Grant
Optical member, plastic lens for eyeglasses, and method for manufac...
Patent number
8,746,878
Issue date
Jun 10, 2014
Tokai Optical Co., Ltd.
Tsuyoshi Fukagawa
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Optical product and eyeglass plastic lens
Patent number
8,746,880
Issue date
Jun 10, 2014
Tokai Optical Co., Ltd.
Tsuyoshi Fukagawa
G02 - OPTICS
Patents Applications
last 30 patents
Information
Patent Application
PLASTIC LENS FOR SPECTACLES
Publication number
20240019608
Publication date
Jan 18, 2024
Tokai Optical Co., Ltd.
Ryosuke SUZUKI
G02 - OPTICS
Information
Patent Application
PLASTIC OPTICAL PRODUCT AND PLASTIC SPECTACLE LENS
Publication number
20230258843
Publication date
Aug 17, 2023
Tokai Optical Co., Ltd.
Hirotoshi TAKAHASHI
G02 - OPTICS
Information
Patent Application
PLASTIC OPTICAL PRODUCT AND PLASTIC SPECTACLE LENS
Publication number
20230244003
Publication date
Aug 3, 2023
Tokai Optical Co., Ltd.
Hirotoshi TAKAHASHI
G02 - OPTICS
Information
Patent Application
SPECTACLE LENS AND SPECTACLES
Publication number
20210149221
Publication date
May 20, 2021
Tokai Optical Co., Ltd.
Hirotoshi TAKAHASHI
G02 - OPTICS
Information
Patent Application
OPTICAL PLASTIC PRODUCT, AND PLASTIC SPECTACLE LENS AND SPECTACLES
Publication number
20200132886
Publication date
Apr 30, 2020
Tokai Optical Co., Ltd.
Hirotoshi TAKAHASHI
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
PLASTIC SPECTACLE LENS AND SPECTACLES
Publication number
20190369291
Publication date
Dec 5, 2019
Tokai Optical Co., Ltd.
Koji IMAI
G02 - OPTICS
Information
Patent Application
OPTICAL PRODUCT, PLASTIC SPECTACLE LENS, AND SPECTACLES
Publication number
20190155058
Publication date
May 23, 2019
Tokai Optical Co., Ltd.
Hirotoshi TAKAHASHI
G02 - OPTICS
Information
Patent Application
ND FILTER WITH PLASTIC BASE MATERIAL, AND ND FILTER WITH PLASTIC BA...
Publication number
20180348414
Publication date
Dec 6, 2018
Tokai Optical Co., Ltd.
Ryosuke SUZUKI
G02 - OPTICS
Information
Patent Application
OPTICAL PRODUCT AND SPECTACLE LENS
Publication number
20170097521
Publication date
Apr 6, 2017
Tokai Optical Co., Ltd.
Takuro YOSHIDA
G02 - OPTICS
Information
Patent Application
OPTICAL PRODUCT, AND SPECTACLE LENS AND SPECTACLES
Publication number
20160306190
Publication date
Oct 20, 2016
Tokai Optical Co., Ltd.
Hirotoshi TAKAHASHI
G02 - OPTICS
Information
Patent Application
OPTICAL PRODUCT, AND SPECTACLE LENS AND SPECTACLES
Publication number
20160306194
Publication date
Oct 20, 2016
Tokai Optical Co., Ltd.
Hirotoshi TAKAHASHI
G02 - OPTICS
Information
Patent Application
OPTICAL PRODUCT AND SPECTACLE LENS
Publication number
20160124118
Publication date
May 5, 2016
Tokai Optical Co., Ltd.
Hirotoshi TAKAHASHI
G02 - OPTICS
Information
Patent Application
OPTICAL PRODUCT AND SPECTACLE PLASTIC LENS
Publication number
20150192701
Publication date
Jul 9, 2015
Tokai Optical Co., Ltd.
Hirotoshi TAKAHASHI
G02 - OPTICS
Information
Patent Application
OPTICAL PRODUCT AND SPECTACLE PLASTIC LENS
Publication number
20130135742
Publication date
May 30, 2013
Tokai Optical Co., Ltd.
Tsuyoshi FUKAGAWA
G02 - OPTICS
Information
Patent Application
PLASTIC OPTICAL PRODUCT AND PLASTIC LENS FOR SPECTACLES
Publication number
20130050636
Publication date
Feb 28, 2013
Tokai Optical Co., Ltd.
Tsuyoshi FUKAGAWA
G02 - OPTICS
Information
Patent Application
OPTICAL PRODUCT AND EYEGLASS PLASTIC LENS
Publication number
20120069295
Publication date
Mar 22, 2012
Tokai Optical Co., Ltd.
Tsuyoshi FUKAGAWA
G02 - OPTICS
Information
Patent Application
OPTICAL MEMBER, PLASTIC LENS FOR EYEGLASSES, AND METHOD FOR MANUFAC...
Publication number
20120062833
Publication date
Mar 15, 2012
Tokai Optical Co., Ltd.
Tsuyoshi FUKAGAWA
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
OPTICAL PRODUCT AND SPECTACLE PLASTIC LENS
Publication number
20120033175
Publication date
Feb 9, 2012
Tokai Optical Co., Ltd.
Tsuyoshi Fukagawa
G02 - OPTICS