Ushio Denki Kabushiki Kaisha

Daicel Corporation

Hiroyuki Fujii

Yukiharu Tagawa

Mitsuru Ikeuchi

Yasuyuki Akai

Youji Suzuki

Kenji Imamura

Tetsu Takemura

The present invention provides a solvent composition for use in an ink for producing an electronic device using a printing method, the solvent composition being capable of improving the printing accuracy of the ink, being fired at low temperatures, and suppressing the amount of ash remaining after firing to a very low amount. The solvent composition for electronic device production of the present invention is for use in an ink for producing an electronic device by a printing method, and contains a miscible product of: a solvent and a compound represented by Formula (1) below. In Formula (1), R represents the same or different aliphatic hydrocarbon groups having 1 or more carbon atoms. 

Solvent composition for electronic device production

In a light source unit which has a discharge lamp which is located in a differential pressure passage system, an arrangement in which the discharge lamp and a concave reflector can be cooled with high efficiency is achieved by a discharge lamp being attached in the neck of a concave reflector which is located essentially horizontally, and at the same time, in the differential pressure passage system. Furthermore, at least one cooling air discharge opening is located in the neck area of the concave reflector; translucent glass covers the front opening of the concave reflector; and at least one cooling air injection opening is located in the area of the front opening of the concave reflector and has directional accuracy with reference to the inside of the concave reflector.

Light source device for projection apparatus

To provide a lamp device that is a point light source, that withstands high pressure, and that produces high-intensity light, a high-frequency excitation point light source lamp device has been devised having a discharge vessel made of a transparent, non-conductive material and having an expanded part forming a discharge space and with tubules joined to the expanded part; at least one discharge concentrator, that concentrates the electrical field within the discharge space of the expanded part, which is supported in a tubule with an end within the discharge space; and a high-frequency supply external to the lamp for providing excitation energy that excites a discharge of the concentrator.

High-frequency excitation point light source lamp device

Growing community of inventors

Himeji, Japan

Hiroyuki Fujii