Masafumi Sakaguchi

Person

Suwa-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Display device and method of adjusting optical system of display de...
- Patent number 11,947,124
- Issue date Apr 2, 2024
- Seiko Epson Corporation
- Masatoshi Yonekubo
- G02 - OPTICS
Information Patent Grant
Display device and light-guiding device
- Patent number 10,871,651
- Issue date Dec 22, 2020
- Seiko Epson Corporation
- Toshiyuki Noguchi
- G02 - OPTICS
Information Patent Grant
Polarizing plate, liquid crystal device, and electronic apparatus
- Patent number 7,623,200
- Issue date Nov 24, 2009
- Seiko Epson Corporation
- Masafumi Sakaguchi
- G02 - OPTICS
Information Patent Grant
Electro-optical device, and projector and electronic apparatus incl...
- Patent number 7,616,270
- Issue date Nov 10, 2009
- Seiko Epson Corporation
- Hidekazu Hirabayashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Projector
- Patent number 7,390,095
- Issue date Jun 24, 2008
- Seiko Epson Corporation
- Kanji Yoshida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Projector
- Patent number 7,329,007
- Issue date Feb 12, 2008
- Seiko Epson Corporation
- Joji Karasawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Game machine and monitor system
- Patent number 7,275,993
- Issue date Oct 2, 2007
- Seiko Epson Corporation
- Toshiyuki Hosaka
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Light transmission sheet, rear projection type projector, light tra...
- Patent number 7,256,935
- Issue date Aug 14, 2007
- Seiko Epson Corporation
- Masafumi Sakaguchi
- G02 - OPTICS
Information Patent Grant
Transmissive screen and rear projector
- Patent number 7,167,306
- Issue date Jan 23, 2007
- Seiko Epson Corporation
- Masafumi Sakaguchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Projector
- Patent number 7,156,523
- Issue date Jan 2, 2007
- Seiko Epson Corporation
- Hidemasa Yamakawa
- G02 - OPTICS
Information Patent Grant
Method of forming a colored layer on a microlens substrate, a micro...
- Patent number 7,061,682
- Issue date Jun 13, 2006
- Seiko Epson Corporation
- Hideto Yamashita
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Transmissive screen and rear projector
- Patent number 7,012,744
- Issue date Mar 14, 2006
- Seiko Epson Corporation
- Masafumi Sakaguchi
- G02 - OPTICS
Information Patent Grant
Transmissive screen and rear projector
- Patent number 6,947,212
- Issue date Sep 20, 2005
- Seiko Epson Corporation
- Joji Karasawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Head-mounted virtual image display device having switching means en...
- Patent number 5,739,797
- Issue date Apr 14, 1998
- Seiko Epson Corporation
- Joji Karasawa
- G02 - OPTICS
Information Patent Grant
Virtual vision display
- Patent number D380032
- Issue date Jun 17, 1997
- Seiko Epson Corporation
- Makoto Kobayashi
- D21 - Games, toys, and sports goods

Patents Applicationslast 30 patents

Information Patent Application
FIBER STRUCTURE MANUFACTURING APPARATUS
- Publication number 20250019878
- Publication date Jan 16, 2025
- SEIKO EPSON CORPORATION
- Hirofumi NAKATA
- D10 - INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEX...
Information Patent Application
FIBER STRUCTURE MANUFACTURING APPARATUS
- Publication number 20250018609
- Publication date Jan 16, 2025
- SEIKO EPSON CORPORATION
- Hirofumi NAKATA
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
DISPLAY DEVICE AND METHOD OF ADJUSTING OPTICAL SYSTEM OF DISPLAY DE...
- Publication number 20210063756
- Publication date Mar 4, 2021
- SEIKO EPSON CORPORATION
- Masatoshi YONEKUBO
- G02 - OPTICS
Information Patent Application
DISPLAY DEVICE AND LIGHT-GUIDING DEVICE
- Publication number 20190235249
- Publication date Aug 1, 2019
- SEIKO EPSON CORPORATION
- Toshiyuki NOGUCHI
- G02 - OPTICS
Information Patent Application
DISPLAY DEVICE
- Publication number 20090161029
- Publication date Jun 25, 2009
- SEIKO EPSON CORPORATION
- Masafumi SAKAGUCHI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
POLARIZING PLATE, LIQUID CRYSTAL DEVICE, AND ELECTRONIC APPARATUS
- Publication number 20080062356
- Publication date Mar 13, 2008
- SEIKO EPSON CORPORATION
- Masafumi Sakaguchi
- G02 - OPTICS
Information Patent Application
POLARIZING PLATE, LIQUID CRYSTAL DEVICE, AND ELECTRONIC APPARATUS
- Publication number 20080055522
- Publication date Mar 6, 2008
- SEIKO EPSON CORPORATION
- Masafumi SAKAGUCHI
- G02 - OPTICS
Information Patent Application
Electro-optical device, and projector and electronic apparatus incl...
- Publication number 20070195222
- Publication date Aug 23, 2007
- SEIKO EPSON CORPORATION
- Hidekazu Hirabayashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
A SUBSTRATE WITH CONCAVE PORTIONS, A MICROLENS SUBSTRATE, A TRANSMI...
- Publication number 20060203333
- Publication date Sep 14, 2006
- SEIKO EPSON CORPORATION
- Hideto Yamashita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Projector
- Publication number 20060077357
- Publication date Apr 13, 2006
- SEIKO EPSON CORPORATION
- Kanji Yoshida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Projector
- Publication number 20060072209
- Publication date Apr 6, 2006
- SEIKO EPSON CORPORATION
- Joji Karasawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Projector
- Publication number 20060050396
- Publication date Mar 9, 2006
- SEIKO EPSON CORPORATION
- Hidemasa Yamakawa
- G02 - OPTICS
Information Patent Application
Light transmissive screen, rear type projector, and method of desig...
- Publication number 20050213208
- Publication date Sep 29, 2005
- SEIKO EPSON CORPORATION
- Masafumi Sakaguchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Method of forming a colored layer on a microlens substrate, a micro...
- Publication number 20050168817
- Publication date Aug 4, 2005
- Hideto Yamashita
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
Substrate with concave portions, a microlens substrate, a transmiss...
- Publication number 20050002094
- Publication date Jan 6, 2005
- Hideto Yamashita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Transmissive screen and rear projector
- Publication number 20040141234
- Publication date Jul 22, 2004
- SEIKO EPSON CORPORATION
- Masafumi Sakaguchi
- G02 - OPTICS
Information Patent Application
Light transmission sheet, rear projection type projector, light tra...
- Publication number 20040114229
- Publication date Jun 17, 2004
- SEIKO EPSON CORPORATION
- Masafumi Sakaguchi
- G02 - OPTICS
Information Patent Application
Game machine and monitor system
- Publication number 20040105003
- Publication date Jun 3, 2004
- Toshiyuki Hosaka
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
Transmissive screen and rear projector
- Publication number 20040075898
- Publication date Apr 22, 2004
- SEIKO EPSON CORPORATION
- Masafumi Sakaguchi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Transmissive screen and rear projector
- Publication number 20040075900
- Publication date Apr 22, 2004
- SEIKO EPSON CORPORATION
- Masafumi Sakaguchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Transmissive screen and rear projector
- Publication number 20040070845
- Publication date Apr 15, 2004
- SEIKO EPSON CORPORATION
- Joji Karasawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Masafumi Sakaguchi

Person

Patents Grantslast 30 patents

Display device and method of adjusting optical system of display de...

Display device and light-guiding device

Polarizing plate, liquid crystal device, and electronic apparatus

Electro-optical device, and projector and electronic apparatus incl...

Projector

Projector

Game machine and monitor system

Light transmission sheet, rear projection type projector, light tra...

Transmissive screen and rear projector

Projector

Method of forming a colored layer on a microlens substrate, a micro...

Transmissive screen and rear projector

Transmissive screen and rear projector

Head-mounted virtual image display device having switching means en...

Virtual vision display

Patents Applicationslast 30 patents

FIBER STRUCTURE MANUFACTURING APPARATUS

FIBER STRUCTURE MANUFACTURING APPARATUS

DISPLAY DEVICE AND METHOD OF ADJUSTING OPTICAL SYSTEM OF DISPLAY DE...

DISPLAY DEVICE AND LIGHT-GUIDING DEVICE

DISPLAY DEVICE

POLARIZING PLATE, LIQUID CRYSTAL DEVICE, AND ELECTRONIC APPARATUS

POLARIZING PLATE, LIQUID CRYSTAL DEVICE, AND ELECTRONIC APPARATUS

Electro-optical device, and projector and electronic apparatus incl...

A SUBSTRATE WITH CONCAVE PORTIONS, A MICROLENS SUBSTRATE, A TRANSMI...

Projector

Projector

Projector

Light transmissive screen, rear type projector, and method of desig...

Method of forming a colored layer on a microlens substrate, a micro...

Substrate with concave portions, a microlens substrate, a transmiss...

Transmissive screen and rear projector

Light transmission sheet, rear projection type projector, light tra...

Game machine and monitor system

Transmissive screen and rear projector

Transmissive screen and rear projector

Transmissive screen and rear projector