Koji SHIOKAWA

Person

Azumino-Shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Projection system and projector
- Patent number 12,235,465
- Issue date Feb 25, 2025
- Seiko Epson Corporation
- Hitoshi Hirano
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Projection system and projector with first optical system and secon...
- Patent number 12,007,678
- Issue date Jun 11, 2024
- Seiko Epson Corporation
- Yasuyuki Kiyama
- G02 - OPTICS
Information Patent Grant
Projection system and projection-type image display apparatus
- Patent number 11,435,565
- Issue date Sep 6, 2022
- Seiko Epson Corporation
- Koji Shiokawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Projection system and projector
- Patent number 10,895,719
- Issue date Jan 19, 2021
- Seiko Epson Corporation
- Toshihiko Sakai
- G02 - OPTICS
Information Patent Grant
Projection system and projector with light-shielding mask
- Patent number 10,782,510
- Issue date Sep 22, 2020
- Seiko Epson Corporation
- Takateru Mori
- G02 - OPTICS
Information Patent Grant
Projector
- Patent number 10,754,231
- Issue date Aug 25, 2020
- Seiko Epson Corporation
- Takanori Fukuyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Projection optical system and projection type image display device
- Patent number 10,574,935
- Issue date Feb 25, 2020
- Seiko Epson Corporation
- Koji Shiokawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Projection system and projection-type image display apparatus
- Patent number 10,571,786
- Issue date Feb 25, 2020
- Seiko Epson Corporation
- Shoichiro Toyoda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Projection optical system and projection image display device
- Patent number 10,539,766
- Issue date Jan 21, 2020
- Seiko Epson Corporation
- Koji Shiokawa
- G02 - OPTICS
Information Patent Grant
Projection lens and projector
- Patent number 10,503,057
- Issue date Dec 10, 2019
- Seiko Epson Corporation
- Naoto Takehana
- G02 - OPTICS
Information Patent Grant
Projection system and projection-type image display apparatus
- Patent number 10,473,902
- Issue date Nov 12, 2019
- Seiko Epson Corporation
- Koji Shiokawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Wide field angle projection system and projection-type image displa...
- Patent number 9,740,086
- Issue date Aug 22, 2017
- Seiko Epson Corporation
- Koji Shiokawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Projection system and projection-type image display apparatus
- Patent number 9,348,124
- Issue date May 24, 2016
- Seiko Epson Corporation
- Koji Shiokawa
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL SYSTEM AND PROJECTOR
- Publication number 20230054195
- Publication date Feb 23, 2023
- SEIKO EPSON CORPORATION
- Hitoshi HIRANO
- G02 - OPTICS
Information Patent Application
PROJECTION SYSTEM AND PROJECTOR
- Publication number 20230049785
- Publication date Feb 16, 2023
- SEIKO EPSON CORPORATION
- Hitoshi HIRANO
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
PROJECTION SYSTEM AND PROJECTOR
- Publication number 20220206252
- Publication date Jun 30, 2022
- SEIKO EPSON CORPORATION
- Yasuyuki KIYAMA
- 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
PROJECTION SYSTEM AND PROJECTION-TYPE IMAGE DISPLAY APPARATUS
- Publication number 20200088977
- Publication date Mar 19, 2020
- SEIKO EPSON CORPORATION
- Koji SHIOKAWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
PROJECTION SYSTEM AND PROJECTOR
- Publication number 20200081230
- Publication date Mar 12, 2020
- SEIKO EPSON CORPORATION
- Toshihiko SAKAI
- G02 - OPTICS
Information Patent Application
PROJECTION SYSTEM AND PROJECTOR
- Publication number 20190361208
- Publication date Nov 28, 2019
- SEIKO EPSON CORPORATION
- Takateru MORI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
PROJECTION LENS AND PROJECTOR
- Publication number 20190235362
- Publication date Aug 1, 2019
- SEIKO EPSON CORPORATION
- Naoto TAKEHANA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
PROJECTION OPTICAL SYSTEM AND PROJECTION TYPE IMAGE DISPLAY DEVICE
- Publication number 20190166329
- Publication date May 30, 2019
- SEIKO EPSON CORPORATION
- Koji SHIOKAWA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
PROJECTION SYSTEM AND PROJECTION-TYPE IMAGE DISPLAY APPARATUS
- Publication number 20190072838
- Publication date Mar 7, 2019
- SEIKO EPSON CORPORATION
- Shoichiro TOYODA
- G02 - OPTICS
Information Patent Application
PROJECTOR
- Publication number 20190064641
- Publication date Feb 28, 2019
- SEIKO EPSON CORPORATION
- Takanori FUKUYAMA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
PROJECTION OPTICAL SYSTEM AND PROJECTION IMAGE DISPLAY DEVICE
- Publication number 20180164554
- Publication date Jun 14, 2018
- SEIKO EPSON CORPORATION
- Koji SHIOKAWA
- G02 - OPTICS
Information Patent Application
PROJECTION SYSTEM AND PROJECTION-TYPE IMAGE DISPLAY APPARATUS
- Publication number 20170351070
- Publication date Dec 7, 2017
- SEIKO EPSON CORPORATION
- Koji SHIOKAWA
- G02 - OPTICS
Information Patent Application
PROJECTION SYSTEM AND PROJECTION-TYPE IMAGE DISPLAY APPARATUS
- Publication number 20160216494
- Publication date Jul 28, 2016
- SEIKO EPSON CORPORATION
- Koji SHIOKAWA
- G02 - OPTICS
Information Patent Application
PROJECTION SYSTEM AND PROJECTION-TYPE IMAGE DISPLAY APPARATUS
- Publication number 20150205082
- Publication date Jul 23, 2015
- SEIKO EPSON CORPORATION
- Koji SHIOKAWA
- G02 - OPTICS

Koji SHIOKAWA

Person

Patents Grantslast 30 patents

Projection system and projector

Projection system and projector with first optical system and secon...

Projection system and projection-type image display apparatus

Projection system and projector

Projection system and projector with light-shielding mask

Projector

Projection optical system and projection type image display device

Projection system and projection-type image display apparatus

Projection optical system and projection image display device

Projection lens and projector

Projection system and projection-type image display apparatus

Wide field angle projection system and projection-type image displa...

Projection system and projection-type image display apparatus

Patents Applicationslast 30 patents

OPTICAL SYSTEM AND PROJECTOR

PROJECTION SYSTEM AND PROJECTOR

PROJECTION SYSTEM AND PROJECTOR

PROJECTION OPTICAL DEVICE AND PROJECTOR

PROJECTION SYSTEM AND PROJECTION-TYPE IMAGE DISPLAY APPARATUS

PROJECTION SYSTEM AND PROJECTOR

PROJECTION SYSTEM AND PROJECTOR

PROJECTION LENS AND PROJECTOR

PROJECTION OPTICAL SYSTEM AND PROJECTION TYPE IMAGE DISPLAY DEVICE

PROJECTION SYSTEM AND PROJECTION-TYPE IMAGE DISPLAY APPARATUS

PROJECTOR

PROJECTION OPTICAL SYSTEM AND PROJECTION IMAGE DISPLAY DEVICE

PROJECTION SYSTEM AND PROJECTION-TYPE IMAGE DISPLAY APPARATUS

PROJECTION SYSTEM AND PROJECTION-TYPE IMAGE DISPLAY APPARATUS

PROJECTION SYSTEM AND PROJECTION-TYPE IMAGE DISPLAY APPARATUS