Koichi Sakuma

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Utsunomiya-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Lens apparatus, image pickup apparatus, processing apparatus, and c...
- Patent number 11,187,870
- Issue date Nov 30, 2021
- Canon Kabushiki Kaisha
- Koichi Sakuma
- G02 - OPTICS
Information Patent Grant
Converter lens and camera apparatus including the same
- Patent number 11,181,716
- Issue date Nov 23, 2021
- Canon Kabushiki Kaisha
- Koichi Sakuma
- G02 - OPTICS
Information Patent Grant
Zoom lens, image pickup apparatus, and extender lens unit
- Patent number 11,156,810
- Issue date Oct 26, 2021
- Canon Kabushiki Kaisha
- Koichi Sakuma
- G02 - OPTICS
Information Patent Grant
Zoom lens and image pickup apparatus including the same
- Patent number 10,197,780
- Issue date Feb 5, 2019
- Canon Kabushiki Kaisha
- Koichi Sakuma
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
LENS APPARATUS, IMAGE PICKUP APPARATUS, PROCESSING APPARATUS, AND C...
- Publication number 20200081222
- Publication date Mar 12, 2020
- Canon Kabushiki Kaisha
- Koichi Sakuma
- G02 - OPTICS
Information Patent Application
ZOOM LENS, IMAGE PICKUP APPARATUS, AND EXTENDER LENS UNIT
- Publication number 20200081232
- Publication date Mar 12, 2020
- Canon Kabushiki Kaisha
- Koichi Sakuma
- G02 - OPTICS
Information Patent Application
CONVERTER LENS AND CAMERA APPARATUS INCLUDING THE SAME
- Publication number 20180372991
- Publication date Dec 27, 2018
- Canon Kabushiki Kaisha
- Koichi Sakuma
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ZOOM LENS AND IMAGE PICKUP APPARATUS INCLUDING THE SAME
- Publication number 20180113288
- Publication date Apr 26, 2018
- Canon Kabushiki Kaisha
- Koichi Sakuma
- G02 - OPTICS