Osram-Melco Ltd.

Fuji Photo Film Company, Limited

Mitsuhiro Ikeda

Takashi Osawa

Masaomi Takeda

Koji Kokufu

Sei Kawahara

Toshiya Komai

At the end of life of a fluorescent lamp having a base to which a pin is press-fitted, it is an object to prevent the pin from dropping or slanting, etc. A fluorescent lamp includes a base having a base body and a pin press-fitted to a hole formed on the base body. A pin retaining force (a pin torque of the base) Fe after use by which the base body retains the pin is at least 0.08 Nm after the fluorescent lamp is burned for a rated life, and a rate Fe/Fi of an initial pin retaining force Fi by which the base body retains the pin before use of the fluorescent lamp and the pin retaining force Fe after use is at least 0.66.

Fluorescent lamp and base with press-fit hole

Fluorescent lamp and ferrule

When a laminate product is manufactured by extruding a thermoplastic resin on a substrate for coating, a space enclosed between a member for cooling the thermoplastic resin and a non-cooled thermoplastic resin film is kept within an atmosphere having a high permeability with respect to the thermoplastic resin film. Occurrence of craters in the laminated resin film is reduced.

Method of manufacturing laminate product

Growing community of inventors

Shizuoka, Japan

Mitsuhiro Ikeda