Yuuki OKA

Person

Kanagawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Detection apparatus and method of detecting object comprising a cir...
- Patent number 11,899,107
- Issue date Feb 13, 2024
- Ricoh Company, Ltd.
- Takumi Satoh
- G01 - MEASURING TESTING
Information Patent Grant
Lighting module, distance measuring device, movable body, and light...
- Patent number 11,563,304
- Issue date Jan 24, 2023
- Ricoh Company, Ltd.
- Yuuki Oka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Drive circuit and light emitting device
- Patent number 11,363,694
- Issue date Jun 14, 2022
- Ricoh Company, Ltd.
- Tsuyoshi Ueno
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Drive circuit, light emitting device, distance measurement apparatu...
- Patent number 11,240,894
- Issue date Feb 1, 2022
- Ricoh Company, Ltd.
- Yuuki Oka
- G01 - MEASURING TESTING
Information Patent Grant
Drive circuit and light emitting device
- Patent number 11,109,459
- Issue date Aug 31, 2021
- Ricoh Company, Ltd.
- Tsuyoshi Ueno
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Drive circuit and light emitting device
- Patent number 10,530,123
- Issue date Jan 7, 2020
- Ricoh Company, Ltd.
- Yuuki Oka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Fixing device and image forming apparatus incorporating same
- Patent number 9,964,904
- Issue date May 8, 2018
- Ricoh Company, Ltd.
- Yuuki Oka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus
- Patent number 9,128,449
- Issue date Sep 8, 2015
- Ricoh Company, Ltd.
- Masataka Akaishi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
LIGHT SOURCE MODULE, DISTANCE-MEASURING APPARATUS, AND MOBILE OBJECT
- Publication number 20220299607
- Publication date Sep 22, 2022
- Yuuki OKA
- G01 - MEASURING TESTING
Information Patent Application
OPTICAL ELEMENT, OPTICAL DEVICE, DISTANCE MEASUREMENT APPARATUS, AN...
- Publication number 20220137188
- Publication date May 5, 2022
- Ricoh Company, Ltd.
- Takumi SATOH
- G01 - MEASURING TESTING
Information Patent Application
LIGHTING MODULE, DISTANCE MEASURING DEVICE, MOVABLE BODY, AND LIGHT...
- Publication number 20220037853
- Publication date Feb 3, 2022
- RICOH COMPANY, LTD.
- Yuuki Oka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
DRIVE CIRCUIT AND LIGHT EMITTING DEVICE
- Publication number 20210360758
- Publication date Nov 18, 2021
- RICOH COMPANY, LTD.
- Tsuyoshi UENO
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
DETECTION APPARATUS AND METHOD OF DETECTING OBJECT
- Publication number 20210124046
- Publication date Apr 29, 2021
- Takumi SATOH
- G01 - MEASURING TESTING
Information Patent Application
DRIVE CIRCUIT, LIGHT EMITTING DEVICE, DISTANCE MEASUREMENT APPARATU...
- Publication number 20200178361
- Publication date Jun 4, 2020
- Yuuki Oka
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
DRIVE CIRCUIT AND LIGHT EMITTING DEVICE
- Publication number 20200160777
- Publication date May 21, 2020
- Ricoh Company, Ltd.
- Tsuyoshi UENO
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Application
DRIVE CIRCUIT AND LIGHT EMITTING DEVICE
- Publication number 20180269651
- Publication date Sep 20, 2018
- RICOH COMPANY, LTD.
- Yuuki OKA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20150010319
- Publication date Jan 8, 2015
- RICOH COMPANY, LTD.
- Masataka AKAISHI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20140305925
- Publication date Oct 16, 2014
- RICOH COMPANY, LTD.
- Yuuki OKA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Person

Patents Grantslast 30 patents

Detection apparatus and method of detecting object comprising a cir...

Lighting module, distance measuring device, movable body, and light...

Drive circuit and light emitting device

Drive circuit, light emitting device, distance measurement apparatu...

Drive circuit and light emitting device

Drive circuit and light emitting device

Fixing device and image forming apparatus incorporating same

Fixing device and image forming apparatus

Patents Applicationslast 30 patents

LIGHT SOURCE MODULE, DISTANCE-MEASURING APPARATUS, AND MOBILE OBJECT

OPTICAL ELEMENT, OPTICAL DEVICE, DISTANCE MEASUREMENT APPARATUS, AN...

LIGHTING MODULE, DISTANCE MEASURING DEVICE, MOVABLE BODY, AND LIGHT...

DRIVE CIRCUIT AND LIGHT EMITTING DEVICE

DETECTION APPARATUS AND METHOD OF DETECTING OBJECT

DRIVE CIRCUIT, LIGHT EMITTING DEVICE, DISTANCE MEASUREMENT APPARATU...

DRIVE CIRCUIT AND LIGHT EMITTING DEVICE

DRIVE CIRCUIT AND LIGHT EMITTING DEVICE

FIXING DEVICE AND IMAGE FORMING APPARATUS

FIXING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME