Tetsuya Sadahiro

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Light-guide plate, area light source device, display device, manufa...
- Patent number 12,092,853
- Issue date Sep 17, 2024
- Dai Nippon Printing Co., Ltd.
- Kohei Komizo
- G02 - OPTICS
Information Patent Grant
Light-guide plate, area light source device, display device, manufa...
- Patent number 11,513,276
- Issue date Nov 29, 2022
- Dai Nippon Printing Co., Ltd.
- Kohei Komizo
- G02 - OPTICS
Information Patent Grant
Reflection screen and image display system
- Patent number 9,285,669
- Issue date Mar 15, 2016
- Dai Nippon Printing Co., Ltd.
- Tetsuya Sadahiro
- G02 - OPTICS
Information Patent Grant
Reflection screen and image display system
- Patent number 9,030,736
- Issue date May 12, 2015
- Dai Nippon Printing Co., Ltd.
- Tetsuya Sadahiro
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Optical sheet and display device
- Patent number 8,891,169
- Issue date Nov 18, 2014
- Dai Nippon Printing Co., Ltd.
- Tsuyoshi Kashiwagi
- B32 - LAYERED PRODUCTS
Information Patent Grant
Surface light source device, optical member, and display device
- Patent number 8,696,187
- Issue date Apr 15, 2014
- Dai Nippon Printing Co., Ltd.
- Masahiro Goto
- G02 - OPTICS
Information Patent Grant
Transmission screen for interactive board
- Patent number 8,634,136
- Issue date Jan 21, 2014
- Dai Nippon Printing Co., Ltd.
- Kazunobu Ogawa
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
LIGHT-GUIDE PLATE, AREA LIGHT SOURCE DEVICE, DISPLAY DEVICE, MANUFA...
- Publication number 20240345308
- Publication date Oct 17, 2024
- DAI NIPPON PRINTING CO., LTD.
- Kohei KOMIZO
- G02 - OPTICS
Information Patent Application
LIGHT-GUIDE PLATE, AREA LIGHT SOURCE DEVICE, DISPLAY DEVICE, MANUFA...
- Publication number 20240077665
- Publication date Mar 7, 2024
- DAI NIPPON PRINTING CO., LTD.
- Kohei KOMIZO
- G02 - OPTICS
Information Patent Application
LIGHT-GUIDE PLATE, AREA LIGHT SOURCE DEVICE, DISPLAY DEVICE, MANUFA...
- Publication number 20230055455
- Publication date Feb 23, 2023
- DAI NIPPON PRINTING CO., LTD.
- Kohei KOMIZO
- G02 - OPTICS
Information Patent Application
LIGHT-GUIDE PLATE, AREA LIGHT SOURCE DEVICE, DISPLAY DEVICE, MANUFA...
- Publication number 20210088710
- Publication date Mar 25, 2021
- DAI NIPPON PRINTING CO., LTD.
- Kohei KOMIZO
- G02 - OPTICS
Information Patent Application
REFLECTION SCREEN AND IMAGE DISPLAY SYSTEM
- Publication number 20150077849
- Publication date Mar 19, 2015
- DAI NIPPON PRINTING CO. , LTD.
- Tetsuya SADAHIRO
- G02 - OPTICS
Information Patent Application
REFLECTION SCREEN AND IMAGE DISPLAY SYSTEM
- Publication number 20140092471
- Publication date Apr 3, 2014
- DAI NIPPON PRINTING CO., LTD.
- Tetsuya SADAHIRO
- G02 - OPTICS
Information Patent Application
SURFACE LIGHT SOURCE DEVICE, OPTICAL MEMBER, AND DISPLAY DEVICE
- Publication number 20120020081
- Publication date Jan 26, 2012
- DAI NIPPON PRINTING CO., LTD.
- Masahiro Goto
- G02 - OPTICS
Information Patent Application
OPTICAL SHEET AND DISPLAY DEVICE
- Publication number 20110216416
- Publication date Sep 8, 2011
- Tsuyoshi Kashiwagi
- G02 - OPTICS
Information Patent Application
TRANSMISSION SCREEN FOR INTERACTIVE BOARD
- Publication number 20110122493
- Publication date May 26, 2011
- Dai Nippon Printing Co., Ltd.
- Kazunobu Ogawa
- G02 - OPTICS

Tetsuya Sadahiro

Person

Patents Grantslast 30 patents

Light-guide plate, area light source device, display device, manufa...

Light-guide plate, area light source device, display device, manufa...

Reflection screen and image display system

Reflection screen and image display system

Optical sheet and display device

Surface light source device, optical member, and display device

Transmission screen for interactive board

Patents Applicationslast 30 patents

LIGHT-GUIDE PLATE, AREA LIGHT SOURCE DEVICE, DISPLAY DEVICE, MANUFA...

LIGHT-GUIDE PLATE, AREA LIGHT SOURCE DEVICE, DISPLAY DEVICE, MANUFA...

LIGHT-GUIDE PLATE, AREA LIGHT SOURCE DEVICE, DISPLAY DEVICE, MANUFA...

LIGHT-GUIDE PLATE, AREA LIGHT SOURCE DEVICE, DISPLAY DEVICE, MANUFA...

REFLECTION SCREEN AND IMAGE DISPLAY SYSTEM

REFLECTION SCREEN AND IMAGE DISPLAY SYSTEM

SURFACE LIGHT SOURCE DEVICE, OPTICAL MEMBER, AND DISPLAY DEVICE

OPTICAL SHEET AND DISPLAY DEVICE

TRANSMISSION SCREEN FOR INTERACTIVE BOARD