Agency of Industrial Science and Technology

Ministry of International Trade & Industry

Ebara Corporation

Seikosha Co., Ltd.

Director-general of Agency of Industrial Science and Technology

Japan As Represented by Director General of Agency of Industrial Science

Akira Yabe

Takao Taketani

Hiroyuki Niino

Masashi Shimoyama

Hirokazu Ono

Nobuhiro Kondo

Tomoaki Takahashi

Kentaro Kikuchi

Toshio Matsumura

Yoshinaga Takahashi

A method of processing a photosensitive glass includes exposing. Photosensitive glass by radiation from a laser whose oscillation wavelength lies within the range of wavelengths of exposing light to which the glass responds. Then, the exposed portions 1c are thermally developed and etched. Since a laser beam propagates with a high rectilinearity, the front and rear surfaces of thick photosensitive glass can be exposed without producing dimensional errors. Therefore, the etching accuracy is improved. Especially, where the front and rear surfaces of photosensitive glass are etched, both surfaces can be processed so as to form the same shape in them accurately. In addition, because almost all the energy of the laser radiation is used for exposure of the photosensitive glass, the energy is not wasted and so the efficiency is high.

Method of processing photosensitive glass

Method of forming a thin electroconductive film

A device for generating jets in which two electrodes are disposed in a liquid. One of the electrodes is a plane electrode and the other is disposed at a predetermined distance from the plane electrode and has a plurality of space areas. The space areas are alternately large and small. When a high voltage is applied between the two electrodes, jets are generated from the large space areas.

Device for generating jet with electric field

A method for promoting a boiling heat transfer by applying an electric field to a heat exchange medium, comprises making the relaxation time of an electric charge of a heat exchange medium used equal to or smaller than the characteristic time with respect to motion of bubbles generated by the heat transfer surface in the heat exchange medium to maximize the maximum boiling heat flux.

Augmentation method of boiling heat transfer by applying electric fields

Growing community of inventors

Ibaraki, Japan

Akira Yabe