Ink jet head having heat accumulation layer and protection...

Details Ink jet head having heat accumulation layer and protection... Ink jet head having heat accumulation layer and protection...

2007-05-15

2007-05-15

Stephens, Juanita D. (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S056000, C347S063000

Reexamination Certificate

active

11012186

ABSTRACT:
A base member for an ink jet head in which a heat accumulation layer, a heat generating member generating heat energy used to discharge ink, and protection film for protecting the heat generating member are formed in succession on a substrate, characterized in that the heat resistance value of a portion of the heat accumulation layer which is under the heat generating member is two times or greater and less than five times as great as the heat resistance value of a portion of the protection film which is on the heat generating member.

REFERENCES:
patent: 4567493 (1986-01-01), Ikeda et al.
patent: 4723129 (1988-02-01), Endo et al.
patent: 6412920 (2002-07-01), Matsumoto et al.
patent: 6435660 (2002-08-01), Ozaki et al.
patent: 6474790 (2002-11-01), Kaneko
patent: 2001-171127 (2001-06-01), None
patent: 2002-011886 (2002-01-01), None
*Counterpart U.S. patent also cited (see text of IDS).
Patent Abstracts of Japan, vol. 1997, No. 11, Nov. 28, 1997 (JP 9-187936, Jul. 22, 1997).
Patent Abstracts of Japan, vol. 2000, No. 23, Feb. 10, 2001 (JP 2001-171127, Jun. 26, 2001).
Patent Abstracts of Japan, vol. 2002, No. 05, May 3, 2002 (JP 2002-011886, Jan. 15, 2002).

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