Hajime AKIBA

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Chiba, JP

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Patents Grantslast 30 patents

Information Patent Grant
Carrier core material for electrophotographic developer and method...
- Patent number 11,112,716
- Issue date Sep 7, 2021
- Powdertech Co., Ltd.
- Hiroki Sawamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Carrier, electrophotographic developer, and method of manufacturing...
- Patent number 10,248,039
- Issue date Apr 2, 2019
- Powdertech Co., Ltd.
- Hiroki Sawamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
CARRIER CORE MATERIAL FOR ELECTROPHOTOGRAPHIC DEVELOPER AND METHOD...
- Publication number 20200241435
- Publication date Jul 30, 2020
- POWDERTECH CO., LTD.
- Hiroki SAWAMOTO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CARRIER, ELECTROPHOTOGRAPHIC DEVELOPER, AND METHOD OF MANUFACTURING...
- Publication number 20180074426
- Publication date Mar 15, 2018
- POWDERTECH CO., LTD.
- Hiroki SAWAMOTO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY