Koichi Okamoto

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Miyagi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of manufacturing soft magnetic dust core
- Patent number 12,030,122
- Issue date Jul 9, 2024
- JFE Steel Corporation
- Naomichi Nakamura
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Piezoelectric transformer
- Patent number 5,998,909
- Issue date Dec 7, 1999
- Tokin Corporation
- Katsunori Kumasaka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Piezoelectric transformer wrapped by wrapping member of soft insula...
- Patent number 5,847,490
- Issue date Dec 8, 1998
- Tokin Corporation
- Katsunori Kumasaka
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
MAGNETIC BODY AND MAGNETIC ELEMENT
- Publication number 20240006102
- Publication date Jan 4, 2024
- TOKIN CORPORATION
- Satoru MATSUZAWA
- B22 - CASTING POWDER METALLURGY
Information Patent Application
METHOD OF MANUFACTURING SOFT MAGNETIC DUST CORE
- Publication number 20210031268
- Publication date Feb 4, 2021
- JFE STEEL CORPORATION
- Naomichi NAKAMURA
- B22 - CASTING POWDER METALLURGY
Information Patent Application
METHOD OF MANUFACTURING SOFT MAGNETIC DUST CORE AND SOFT MAGNETIC D...
- Publication number 20180361474
- Publication date Dec 20, 2018
- JFE STEEL CORPORATION
- Naomichi NAKAMURA
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
METHOD OF MANUFACTURING SOFT MAGNETIC DUST CORE AND SOFT MAGNETIC D...
- Publication number 20180169759
- Publication date Jun 21, 2018
- JFE STEEL CORPORATION
- Naomichi NAKAMURA
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...