Fumio Kokai

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Ibaraki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Magnetic recording medium and production thereof
- Patent number 4,737,415
- Issue date Apr 12, 1988
- Hitachi Maxell, Ltd.
- Minoru Ichijo
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Nano-graphite spherical material and method for preparation thereof
- Publication number 20050079354
- Publication date Apr 14, 2005
- Sumio Iijima
- B82 - NANO-TECHNOLOGY
Information Patent Application
Carbon nano-horn and method for preparation thereof
- Publication number 20040241445
- Publication date Dec 2, 2004
- Masako Yudasaka
- B82 - NANO-TECHNOLOGY
Information Patent Application
Carbon nanohorn adsorbent and process for producing the same
- Publication number 20040048744
- Publication date Mar 11, 2004
- Sumio Iijima
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL