Patents by Inventor Hirotaka Kozawa

Hirotaka Kozawa 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).

Ink jet head cartridge, ink tank cartridge using degradeable plastic as part of construction or package thereof and ink jet apparatus having fitting part for the cartridges

Patent number: 5381172

Abstract: An ink tank comprising a bag type container which store ink and a case which houses the container, wherein at least one part of the ink tank is made of a degradable plastic.

Type: Grant

Filed: December 5, 1991

Date of Patent: January 10, 1995

Assignee: Canon Kabushiki Kaisha

Inventors: Toshihiko Ujita, Hirotaka Kozawa

Ink jet head cartridge, ink tank cartridge using degradeable plastic as part of construction or package thereof and ink jet apparatus having fitting part for the cartridges