Akifumi Yamawaki

Person

Naruto, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Alkaline storage battery and process for the production thereof
- Patent number 6,682,848
- Issue date Jan 27, 2004
- Sanyo Electric Co., LTD
- Takayuki Yano
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
NON-SINTERED NICKEL ELECTRODE WITH EXCELLENT OVER-DISCHARGE CHARACT...
- Patent number 6,632,568
- Issue date Oct 14, 2003
- Akifumi Yamawaki
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Nickel-metal hydride storage cell having a high capacity and an exc...
- Patent number 6,368,748
- Issue date Apr 9, 2002
- Sanyo Electric Co., Ltd.
- Masao Takee
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Alkali storage cell employing a spongelike metal substrate
- Patent number 6,274,275
- Issue date Aug 14, 2001
- Sanyo Electric Company, Ltd.
- Akifumi Yamawaki
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Alkali storage cell employing a spongelike metal substrate
- Patent number 5,940,946
- Issue date Aug 24, 1999
- Sanyo Electric Co., Ltd.
- Akifumi Yamawaki
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Manufacturing method of an active material suitable for non-sintere...
- Patent number 5,702,762
- Issue date Dec 30, 1997
- Sanyo Electric Co., Ltd.
- Yoshitaka Baba
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Nickel active material for use in alkali storage cells and its manu...
- Patent number 5,691,086
- Issue date Nov 25, 1997
- Sanyo Electric Co., Ltd.
- Yoshitaka Baba
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Non-sintered nickel electrode with excellent over-discharge charact...
- Patent number 5,688,616
- Issue date Nov 18, 1997
- Sanyo Electric Co., Ltd.
- Akifumi Yamawaki
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Non-sintered nickel electrode with excellent over-discharge charact...
- Patent number 5,672,447
- Issue date Sep 30, 1997
- Sanyo Electric Co., Ltd.
- Akifumi Yamawaki
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Nickel electrode active material; a nickel electrode and a nickel a...
- Patent number 5,629,111
- Issue date May 13, 1997
- Sanyo Electric Co. Ltd.
- Akifumi Yamawaki
- H01 - BASIC ELECTRIC ELEMENTS

Akifumi Yamawaki

Person

Patents Grantslast 30 patents

Alkaline storage battery and process for the production thereof

NON-SINTERED NICKEL ELECTRODE WITH EXCELLENT OVER-DISCHARGE CHARACT...

Nickel-metal hydride storage cell having a high capacity and an exc...

Alkali storage cell employing a spongelike metal substrate

Alkali storage cell employing a spongelike metal substrate

Manufacturing method of an active material suitable for non-sintere...

Nickel active material for use in alkali storage cells and its manu...

Non-sintered nickel electrode with excellent over-discharge charact...

Non-sintered nickel electrode with excellent over-discharge charact...

Nickel electrode active material; a nickel electrode and a nickel a...