5 patents
Utility
Pyranometer
16 Nov 23
A pyranometer is provided which can measure the precise amount of solar radiation/solar irradiance continuously and stably while suppressing the generation of dew or frost by a simple configuration even in changing external environment.
Toshikazu HASEGAWA, Satoshi NISHIKAWA, Masayuki YAMADA
Filed: 10 May 22
Utility
Optical Receiver for Meteorological Lidar
13 Jan 22
An optical receiver for a meteorological lidar capable of accurate measurement of scattered light generated by emitting a laser beam of the UVC range (wavelength of 200 to 280 nm) into the air, without using a diffraction grating, is provided.
Toshikazu HASEGAWA, Eiji TAKEUCHI, Makoto TSUKAMOTO, Masanori YABUKI
Filed: 25 Dec 19
Utility
Meteorological Lidar
16 Dec 21
A meteorological lidar performs highly precise meteorological observation by primarily removing elastically scattered light and by detecting rotational Raman-scattered light without filtering it out.
Toshikazu HASEGAWA, Eiji TAKEUCHI, Makoto TSUKAMOTO, Masanori YABUKI
Filed: 15 Oct 19
Utility
Meteorological Lidar
28 Oct 21
A meteorological lidar capable of measuring vertical distributions of temperature, water vapor concentration, aerosol, wind direction/wind speed, ozone concentration, CO2 concentration, etc., stably and continuously day and night is provided.
Toshikazu HASEGAWA, Eiji TAKEUCHI, Makoto TSUKAMOTO, Masanori YABUKI
Filed: 7 Oct 19
Utility
Thermal Conductivity Measuring Device, Thermal Conductivity Measuring Method and Vacuum Evaluation Device
27 Nov 19
The object of the invention is to provide a thermal conductivity measuring device that comprises a heat generator arranged in such a way as to come into contact with an object to be measured for thermal conductivity, a heat resistant material arranged in such a way as to come into contact with the heat generator, at least one pair of differential thermocouples for measuring a voltage value caused by the difference in temperature of two points of the heat resistant material, the temperature being generated by allowing heat to flow from the heat generator, and a calculating device for calculating the time rate of change of output voltage of the differential thermocouples and then calculating the thermal conductivity of the object to be measured on the basis of the calculated time rate of change.
Toshikazu HASEGAWA, Yukihiro GOTO, Isamu CHIBA
Filed: 28 Nov 16
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