Ideal Star Inc.

Hiroyuki Sagami

Yasuhiko Kasama

Kenji Omote

Kuniyoshi Yokoo

Morihiko Saida

Haruna Oizumi

Yuzo Mizobuchi

Takayuki Kuwabara

Kohshin Takahashi

Takashi Saita

Kazuaki Mizokami

Takeo Furukawa

Provided is a hole-blocking layer which has excellent basic characteristics such as high photoelectric conversion efficiency, while exhibiting excellent productivity. The hole-blocking layer is produced by a process that has a step of bringing an aqueous solution containing hydrogen peroxide and titanium (IV) oxysulfate into contact with the surface of a member on which the hole-blocking layer is to be formed, and holding the contact between the aqueous solution and the member at 50 to 120&#xb0; C., so that an amorphous titanium oxide precursor precipitates on the surface of the member; and a step of drying the amorphous titanium oxide precursor that has precipitated on the member.

Hole blocking layer and method for producing same, and photoelectric conversion element comprising the hole blocking layer and method for manufacturing same

A gas sensor, which is extremely compact to be arranged for separated gas piping in semiconductor device manufacturing equipment, a gas measuring system using such gas sensor, and a gas detection module for the gas measuring system. The gas sensor has a gas detection device containing a dielectric semiconductor, the electric conductivity of the gas detection device varying in response to the degree of adsorption of gases to the gas detection device, a capacitive element connected in series to the gas detection device, and a pair of electrodes which are connected to electric terminals of an electric element comprising the gas detection device and the capacitive element, wherein the gas sensor is capable of detecting the degree of adsorption of gases to the gas detection device from an electrical response to a voltage which is applied to the electrodes and which periodically varies and reverses in polarity.

Gas sensor, gas measuring system using the gas sensor, and gas detection module for the gas sensor

Growing community of inventors

Sendai, Japan

Hiroyuki Sagami