Stock material or miscellaneous articles – Composite – Of quartz or glass
Patent
1996-06-12
2000-11-21
Speer, Timothy M.
Stock material or miscellaneous articles
Composite
Of quartz or glass
428469, 501 4, 501 15, 501 74, 501 75, 501 78, 65 331, 65 335, 65 339, B32B 1700
Patent
active
061500275
ABSTRACT:
Provided are a glass such as a sealing glass which contains a rare earth element and crystalline particles, a structure made by sealing with said sealing glass, a magnetic head made by bonding using said sealing glass, and a magnetic recording and reproducing apparatus on which said magnetic heads are mounted. According to the glass of the present invention, magnetic heads, and other structures can be bonded at low temperatures and a high bond strength can be attained, and thus, magnetic heads having high-speed sliding properties and magnetic recording and reproducing apparatuses of high reliability can be obtained. The glass can be also used for heat resistant parts such as a pannel glass for a cathode-ray tube and the like.
REFERENCES:
patent: 4537862 (1985-08-01), Francel
patent: 4816949 (1989-03-01), Yamada
patent: 4855261 (1989-08-01), Mizuno
patent: 5204293 (1993-04-01), Amundson, Jr.
patent: 5224001 (1993-06-01), Mizuno
patent: 5245492 (1993-09-01), Mizuno
patent: 5284706 (1994-02-01), O'Donnelly
Inada Kenkichi
Kumasaka Noriyuki
Naito Takashi
Namekawa Takashi
Takahashi Ken
Hitachi Ltd
Speer Timothy M.
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