Akira Yokoyama

Person

Tochigi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical apparatus
- Patent number 11,269,157
- Issue date Mar 8, 2022
- Canon Kabushiki Kaisha
- Akira Yokoyama
- G02 - OPTICS
Information Patent Grant
Lens apparatus
- Patent number 10,203,468
- Issue date Feb 12, 2019
- Canon Kabushiki Kaisha
- Akira Yokoyama
- G02 - OPTICS
Information Patent Grant
Stop mechanism, lens apparatus using the same, and image pickup app...
- Patent number 9,671,674
- Issue date Jun 6, 2017
- Canon Kabushiki Kaisha
- Akira Yokoyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Optical accessory adapter
- Patent number 9,285,659
- Issue date Mar 15, 2016
- Canon Kabushiki Kaisha
- Akira Yokoyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Nameplate attachment structure, camera platform apparatus, and came...
- Patent number 8,695,258
- Issue date Apr 15, 2014
- Canon Kabushiki Kaisha
- Yoshifumi Kori
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Driving force transmitting device and camera platform device using...
- Patent number 8,480,318
- Issue date Jul 9, 2013
- Canon Kabushiki Kaisha
- Akira Yokoyama
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Magnetic coupling and camera platform using magnetic coupling
- Patent number 8,016,493
- Issue date Sep 13, 2011
- Canon Kabushiki Kaisha
- Akira Yokoyama
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Drive transmission device and optical apparatus using same
- Patent number 6,822,809
- Issue date Nov 23, 2004
- Canon Kabushiki Kaisha
- Akira Yokoyama
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL APPARATUS, IMAGE PICKUP APPARATUS, AND PROJECTION APPARATUS
- Publication number 20240061154
- Publication date Feb 22, 2024
- Canon Kabushiki Kaisha
- AKIRA YOKOYAMA
- G02 - OPTICS
Information Patent Application
LENS BARREL, LENS APPARATUS AND IMAGE PICKUP APPARATUS
- Publication number 20220269039
- Publication date Aug 25, 2022
- Canon Kabushiki Kaisha
- Yuusuke Hirai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL APPARATUS
- Publication number 20190137729
- Publication date May 9, 2019
- Canon Kabushiki Kaisha
- Akira YOKOYAMA
- G02 - OPTICS
Information Patent Application
LENS APPARATUS
- Publication number 20170059809
- Publication date Mar 2, 2017
- Canon Kabushiki Kaisha
- Akira YOKOYAMA
- G02 - OPTICS
Information Patent Application
STOP MECHANISM, LENS APPARATUS USING THE SAME, AND IMAGE PICKUP APP...
- Publication number 20160161829
- Publication date Jun 9, 2016
- Canon Kabushiki Kaisha
- Akira YOKOYAMA
- G02 - OPTICS
Information Patent Application
OPTICAL ACCESSORY ADAPTER
- Publication number 20140233937
- Publication date Aug 21, 2014
- Canon Kabushiki Kaisha
- Akira YOKOYAMA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
NAMEPLATE ATTACHMENT STRUCTURE, CAMERA PLATFORM APPARATUS, AND CAME...
- Publication number 20120304517
- Publication date Dec 6, 2012
- Canon Kabushiki Kaisha
- Yoshifumi KORI
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Application
DRIVING FORCE TRANSMITTING DEVICE AND CAMERA PLATFORM DEVICE USING...
- Publication number 20110243549
- Publication date Oct 6, 2011
- Canon Kabushiki Kaisha
- Akira YOKOYAMA
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
LICENSE MANAGEMENT SYSTEM, LICENSE MANAGEMENT METHOD, AND COMPUTER...
- Publication number 20110202433
- Publication date Aug 18, 2011
- Akira YOKOYAMA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
MAGNETIC COUPLING AND CAMERA PLATFORM USING MAGNETIC COUPLING
- Publication number 20080207336
- Publication date Aug 28, 2008
- Canon Kabushiki Kaisha
- Akira Yokoyama
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Generating and providing device management data via network
- Publication number 20050165810
- Publication date Jul 28, 2005
- Akira Yokoyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Drive transmission device and optical apparatus using same
- Publication number 20020060856
- Publication date May 23, 2002
- Akira Yokoyama
- G02 - OPTICS

Akira Yokoyama

Person

Patents Grantslast 30 patents

Optical apparatus

Lens apparatus

Stop mechanism, lens apparatus using the same, and image pickup app...

Optical accessory adapter

Nameplate attachment structure, camera platform apparatus, and came...

Driving force transmitting device and camera platform device using...

Magnetic coupling and camera platform using magnetic coupling

Drive transmission device and optical apparatus using same

Patents Applicationslast 30 patents

OPTICAL APPARATUS, IMAGE PICKUP APPARATUS, AND PROJECTION APPARATUS

LENS BARREL, LENS APPARATUS AND IMAGE PICKUP APPARATUS

OPTICAL APPARATUS

LENS APPARATUS

STOP MECHANISM, LENS APPARATUS USING THE SAME, AND IMAGE PICKUP APP...

OPTICAL ACCESSORY ADAPTER

NAMEPLATE ATTACHMENT STRUCTURE, CAMERA PLATFORM APPARATUS, AND CAME...

DRIVING FORCE TRANSMITTING DEVICE AND CAMERA PLATFORM DEVICE USING...

LICENSE MANAGEMENT SYSTEM, LICENSE MANAGEMENT METHOD, AND COMPUTER...

MAGNETIC COUPLING AND CAMERA PLATFORM USING MAGNETIC COUPLING

Generating and providing device management data via network

Drive transmission device and optical apparatus using same