Hirofumi Okubo

Person

Matsumoto-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Projection optical apparatus that is removable installed in a light...
- Patent number 12,072,615
- Issue date Aug 27, 2024
- Seiko Epson Corporation
- Hirofumi Okubo
- G02 - OPTICS
Information Patent Grant
Fixing device, projection optical device, and projector
- Patent number 11,921,407
- Issue date Mar 5, 2024
- Seiko Epson Corporation
- Naoto Takehana
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Projection optical apparatus having reinforcing member and projector
- Patent number 11,415,868
- Issue date Aug 16, 2022
- Seiko Epson Corporation
- Hirofumi Okubo
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Projection optical apparatus and projector
- Patent number 11,019,313
- Issue date May 25, 2021
- Seiko Epson Corporation
- Hirofumi Okubo
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Centering mechanism, lens unit, projection system, and projector
- Patent number 10,942,327
- Issue date Mar 9, 2021
- Seiko Epson Corporation
- Hirofumi Okubo
- G02 - OPTICS
Information Patent Grant
Position detection device, optical device, light source device, and...
- Patent number 9,933,695
- Issue date Apr 3, 2018
- Seiko Epson Corporation
- Hirofumi Okubo
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
PROJECTION OPTICAL APPARATUS AND PROJECTOR
- Publication number 20240329505
- Publication date Oct 3, 2024
- SEIKO EPSON CORPORATION
- Hirofumi OKUBO
- G02 - OPTICS
Information Patent Application
FIXING DEVICE, PROJECTION OPTICAL DEVICE, AND PROJECTOR
- Publication number 20220229351
- Publication date Jul 21, 2022
- SEIKO EPSON CORPORATION
- Naoto TAKEHANA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
PROJECTION OPTICAL APPARATUS AND PROJECTOR
- Publication number 20220206242
- Publication date Jun 30, 2022
- SEIKO EPSON CORPORATION
- Hirofumi OKUBO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
MOUNTING MEMBER AND PROJECTION OPTICAL APPARATUS
- Publication number 20220155550
- Publication date May 19, 2022
- SEIKO EPSON CORPORATION
- Takahiro TAKIZAWA
- G02 - OPTICS
Information Patent Application
PROJECTION OPTICAL APPARATUS AND PROJECTOR
- Publication number 20200401033
- Publication date Dec 24, 2020
- SEIKO EPSON CORPORATION
- Hirofumi OKUBO
- G02 - OPTICS
Information Patent Application
PROJECTION OPTICAL APPARATUS AND PROJECTOR
- Publication number 20200404231
- Publication date Dec 24, 2020
- SEIKO EPSON CORPORATION
- Hirofumi OKUBO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
PROJECTION OPTICAL DEVICE AND PROJECTOR
- Publication number 20200249450
- Publication date Aug 6, 2020
- SEIKO EPSON CORPORATION
- Hirofumi OKUBO
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
CENTERING MECHANISM, LENS UNIT, PROJECTION SYSTEM, AND PROJECTOR
- Publication number 20190293897
- Publication date Sep 26, 2019
- SEIKO EPSON CORPORATION
- Hirofumi OKUBO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
POSITION DETECTION DEVICE, OPTICAL DEVICE, LIGHT SOURCE DEVICE, AND...
- Publication number 20170205699
- Publication date Jul 20, 2017
- SEIKO EPSON CORPORATION
- Hirofumi Okubo
- G02 - OPTICS

Hirofumi Okubo

Person

Patents Grantslast 30 patents

Projection optical apparatus that is removable installed in a light...

Fixing device, projection optical device, and projector

Projection optical apparatus having reinforcing member and projector

Projection optical apparatus and projector

Centering mechanism, lens unit, projection system, and projector

Position detection device, optical device, light source device, and...

Patents Applicationslast 30 patents

PROJECTION OPTICAL APPARATUS AND PROJECTOR

FIXING DEVICE, PROJECTION OPTICAL DEVICE, AND PROJECTOR

PROJECTION OPTICAL APPARATUS AND PROJECTOR

MOUNTING MEMBER AND PROJECTION OPTICAL APPARATUS

PROJECTION OPTICAL APPARATUS AND PROJECTOR

PROJECTION OPTICAL APPARATUS AND PROJECTOR

PROJECTION OPTICAL DEVICE AND PROJECTOR

CENTERING MECHANISM, LENS UNIT, PROJECTION SYSTEM, AND PROJECTOR

POSITION DETECTION DEVICE, OPTICAL DEVICE, LIGHT SOURCE DEVICE, AND...