Quartz fin heat retaining tube

The ornamental design for a quartz fin heat retaining tube, as shown.

FIG. 1: a perspective view of a quartz fin heat retaining tube.

FIG. 2: a top plan view thereof.

FIG. 3: a front elevational view thereof.

FIG. 4: a cross sectional view taken along line 4--4 in FIG. 3.

FIG. 5: a cross sectional view taken along line 5--5 in FIG. 3.

FIG. 6: a left side view thereof.

FIG. 7: a right side view thereof.

FIG. 8: a bottom plan view thereof.

FIG. 9: a rear elevational view thereof; and,

FIG. 10: a reference figure showing the using state.

Patent	Priority	Assignee	Title
D615936,	Mar 06 2009	Tokyo Electron Limited	Pedestal of heat insulating cylinder for manufacturing semiconductor wafers
D793974,	Sep 29 2015	KOKUSAI ELECTRIC CORPORATION	Heater for semiconductor thermal process
D793975,	Sep 29 2015	KOKUSAI ELECTRIC CORPORATION	Heater for semiconductor thermal process
D795209,	Sep 29 2015	KOKUSAI ELECTRIC CORPORATION	Heater for semiconductor thermal process

Patent	Priority	Assignee	Title
5303671,	Feb 07 1992	Tokyo Electron Limited	System for continuously washing and film-forming a semiconductor wafer
D361752,	Sep 17 1993	Tokyo Electron Kabushiki Kaisha; Tokyo Electron Tohoku Kabushiki Kaisha	Wafer boat or rack for holding semiconductor wafers
D380454,	May 30 1995	Tokyo Electron Limited	Wafer boat

Executed on	Assignor	Assignee	Conveyance	Frame	Reel	Doc
Jul 24 1997		Tokyo Elctron Limited	(assignment on the face of the patent)
Nov 08 1997	ISHII, KATSUTOSHI	Tokyo Electron Limited	ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS	008846	0073	pdf

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