Patents by Inventor Mayumi Iwagawa

Mayumi Iwagawa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

Electrode material for electrochemical capacitor, electrochemical capacitor comprising the same, and method for the production of the same

Patent number: 6562313

Abstract: An electrode material for an electrochemical capacitor having a large capacity, having a titanium oxide compound such as titanium oxide, hydrated titanium oxide or their hydrogenated products, and at least one oxidizable and reducible metal element contained in the titanium oxide compound.

Type: Grant

Filed: May 16, 2001

Date of Patent: May 13, 2003

Assignee: Hitachi Maxell, Ltd.

Inventors: Yoshio Takasu, Yasushi Murakami, Mitsuo Ueno, Shigeo Aoyama, Mayumi Iwagawa, Kiyoshi Sato, Seiichi Asada
Electrode material for electrochemical capacitor, electrochemical capacitor comprising the same, and method for the production of the same

Publication number: 20010038519

Abstract: An electrode material for an electrochemical capacitor having a large capacity, having a titanium oxide compound such as titanium oxide, hydrated titanium oxide or their hydrogenated products, and at least one oxidizable and reducible metal element contained in the titanium oxide compound.

Type: Application

Filed: May 16, 2001

Publication date: November 8, 2001

Applicant: Hitachi Maxell, Ltd.

Inventors: Yoshio Takasu, Yasushi Murakami, Mitsuo Ueno, Shigeo Aoyama, Mayumi Iwagawa, Kiyoshi Sato, Seiichi Asada
Electrode material for electrochemical capacitor, electrochemical capacitor comprising the same, and method for the production of the same

Patent number: 6275371

Abstract: An electrode material for an electrochemical capacitor having a large capacity, having a titanium oxide compound such as titanium oxide, hydrated titanium oxide or their hydrogenated products, and at least one oxidizable and reducible metal element contained in the titanium oxide compound.

Type: Grant

Filed: August 11, 1999

Date of Patent: August 14, 2001

Assignee: Hitachi Maxwell, Ltd.

Inventors: Takasu Yoshio, Yasushi Murakami, Mitsuo Ueno, Shigeo Aoyama, Mayumi Iwagawa, Kiyoshi Sato, Seiichi Asada

Electrode material for electrochemical capacitor, electrochemical capacitor comprising the same, and method for the production of the same

Electrode material for electrochemical capacitor, electrochemical capacitor comprising the same, and method for the production of the same

Electrode material for electrochemical capacitor, electrochemical capacitor comprising the same, and method for the production of the same