Panasonic Intellectual Property Management Co., Ltd.

Japan Synthetic Rubber Co., Ltd.

Nippon Paint Compnay, Ltd.

Nabel Co., Ltd.

Kenji Yasuda

Hiroshi Nakai

Yuji Fujii

Takashi Kayaba

Yuki Anan

Yukihide Takahashi

Kazunori Kanda

Hisaichi Muramoto

Hozumi Sato

Kunihiro Harada

Takashi Nishioka

Shuichi Matsumoto

Koichi Ueda

Kunio Nambu

Katsuo Koshimura

Toyoaki Ohashi

Tadahiro Kakiuchi

Hiroshige Iguchi

Taiti Gyoutoku

Yuji Nakabayashi

Akihisa Adachi

Masato Satou

Aoi Watanabe

Yasuaki Yokoyama

Kouichi Takemura

Yasuo Koba

Hirokazu Gotou

Ryuji Iwamoto

Hideaki Morihana

Yoshihiro Ueda

Hideki Kinoshita

Yudai Ishizaki

Kazuki Shiota

Yukio Sakaguchi

Yasuharu Kawano

Masayuki Endoh

Masanori Nakamura

Takanori Kamimura

Kenta Uchida

Akiyoshi Kawauchi

Anan Yuki

Kayaba Takashi

Omoto Yukihiro

A gas safety device includes: a flow path; a flow rate measurement unit for measuring a flow rate of gas in the flow path; an absolute pressure sensor inside the flow path for measuring an absolute pressure of the gas; an absolute pressure sensor outside the flow path for measuring an absolute pressure of atmospheric pressure; a gas pressure determination unit for measuring a change in gas supply pressure from the absolute pressure of the gas and the absolute pressure of atmospheric pressure measured by the absolute pressure sensor and the absolute pressure sensor, respectively; a shutoff valve for shutting off the flow path; and a control circuit for: (i) controlling the flow rate measurement unit; and (ii) causing the shutoff valve to shut off the flow path when determining an abnormality from the flow rate of the gas or the change in gas supply pressure.

Gas safety device

An ultrasonic flowmeter includes a measurement flow path and a pair of ultrasonic sensors arranged upstream and downstream on a first surface of the measurement flow path. In addition, the ultrasonic flowmeter includes a flow rate calculator that detects a flow rate of a fluid to be measured based on a propagation time until ultrasonic signals transmitted from one of the ultrasonic sensors propagate with one or more reflections on a second surface of the measurement flow path facing the first surface, and are received by the other one of the ultrasonic sensors. Furthermore, the measurement flow path has an inner wall surface provided with a draft of a mold for integral molding, and the ultrasonic sensors are fixed to the measurement flow path, incident angles of ultrasonic signals transmitted from the ultrasonic sensors on reflection surface of the second surface where the ultrasonic signals are reflected being equal.

Ultrasonic flowmeter with a flow path inner wall surface with a draft of a mold for integral molding

An ultrasonic flowmeter includes flow path that has a rectangular cross section and through which a fluid to be measured flows, and partition plate that divides flow path into measurement flow path and non-measurement flow paths. In addition, the ultrasonic flowmeter includes a pair of ultrasonic sensors that are arranged upstream and downstream of a surface forming flow path and transmitting and receiving ultrasonic signals, and a flow rate calculator that detects a flow rate of the fluid to be measured based on a propagation time. The ultrasonic flowmeter includes openings that connect measurement flow path, non-measurement flow paths, and a space where the ultrasonic sensors is located, and the ultrasonic sensors mainly propagate ultrasonic waves only to measurement flow path through openings.

Ultrasonic flowmeter having a partition plate dividing the flow path into a measurement flow path and a non-measurement flow path

A gas safety device includes flow path, shutoff valve that shuts off flow path, flow rate measurement unit that measures a flow rate of gas, gas-side absolute pressure sensor that measures absolute pressure of the gas, atmosphere-side absolute pressure sensor that measures absolute pressure of atmospheric pressure, and pressure value transition detector that detects a transition state of the absolute pressure measured by gas-side absolute pressure sensor. Further provided are sensor drive controller that controls driving of atmosphere-side absolute pressure sensor in accordance with a value of pressure transition in pressure value transition detector, and gas pressure determination unit that calculates gas supply pressure from a difference between pressure values measured when the two sensors are driven. Control circuit is further provided to shut off flow path with shutoff valve when determining anomaly from a flow rate measured by flow rate measurement unit and gas supply pressure calculated by gas pressure determination unit.

An ultrasonic flow meter includes measurement flow path where a cross section of a flow path through which a fluid to be measured flows is rectangular, one or more partition plates that divide measurement flow path into a plurality of layered flow paths, and a pair of ultrasonic sensors that are disposed upstream and downstream on the layered flow paths and are capable of transmitting and receiving an ultrasonic signal. In addition, the ultrasonic flow meter includes a flow rate measuring unit that detects a flow rate of the fluid to be measured based on a propagation time, the propagation time being a time period from when one of the ultrasonic sensors transmits the ultrasonic signal to cause the ultrasonic signal to propagate through the fluid to be measured until when an other one of the ultrasonic sensors receives the ultrasonic signal.

Ultrasonic flow meter having one or more integrally molded partition plates dividing the measurement path and having thinner upstream and downstream edges

A gas safety device includes: flow path through which a gas flows; ultrasonic sensor for measuring a flow rate of the gas flowing through flow path; flow rate calculator that calculates a flow rate measurement data pieces from a measurement value of the flow rate measured by ultrasonic sensor; and leakage detector that detects a minor leakage of the gas. The gas safety device further includes: pulsation recognizer that recognizes that pulsation is occurring when a fluctuation in the flow rate measuring data pieces calculated by flow rate calculator is greater than or equal to a predetermined value; and pulsating flow rate corrector that corrects, when pulsation recognizer determines that the pulsation is occurring, the flow rate measurement data piece by a predetermined value. Furthermore, when pulsation recognizer determines that the pulsation is occurring, leakage detector determines whether a leakage is present using the flow rate measurement data piece corrected by pulsating flow rate corrector.

Flow sensor

Flow meter

Flow rate measurement is performed with a propagation time by using a pair of ultrasonic wave oscillators which is provided in flow path through which a fluid to be measured flows, and is disposed so as to transmit and receive an ultrasonic wave signal by causing the ultrasonic wave signal to be reflected on an inner wall of flow path at least once. In addition, adjustment of an amplification rate is periodically performed by amplifier, which amplifies the ultrasonic wave signal received by each of the ultrasonic wave oscillators to a predetermined amplitude, and a difference between a previous amplification rate and a current amplification rate is a predetermined value or more, and the instantaneous flow rate calculated by flow rate calculation unit is a predetermined flow rate or less, the reference voltage is adjusted by reference voltage setting unit. With the configuration, the propagation time can be stably measured and deterioration of the maximum amplitude is prevented.

Flow rate measurement device

A flow rate measurement device includes a turbulence reduction component having opening portions and disposed between a measurement channel and a pair of hole portions across which a pair of ultrasonic transceivers are disposed from the measurement channel. The pair of opening portions of the turbulence reduction component each have frame pieces which are substantially identical in width. This makes it possible to reduce, with small attenuation of ultrasound, the occurrence of turbulence that is attributable to entrained flows in the pair of hole portions and is a cause of measurement error, thereby ensuring measurement accuracy.

A hatching egg inspection apparatus includes: a plurality of light emitter, the light emitter being disposed two dimensionally at prescribed positions; light receiver, which are provided in a one-to-one relationship with the light emitter and each of which receives light from the corresponding light emitter; and an egg container, which is for arraying in advance a hatching egg between each of the light emitter and the light receiver corresponding thereto. Each hatching egg is inspected by the corresponding light receiver that receives, among the lights from all the light emitter, transmitted light that transmitted through the interior of the hatching egg. When one light emitter of the plurality of light emitter is emitting light, other of the light emitter within a prescribed range centered on the one light emitter do not emit light.

Hatching egg inspection apparatus with vibration isolation

A flow meter device includes: an inlet portion, into which a fluid flows; an outlet portion, from which the fluid flows out; a plurality of measurement passage portions provided parallel to each other between the inlet portion and the outlet portion; and at least one flow rate measurement unit, each flow rate measurement unit being configured to measure a flow rate of the fluid that flows through a passage in a corresponding one of the measurement passage portions. Shapes of passages in the respective measurement passage portions coincide with each other. The plurality of measurement passage portions include: the one measurement passage portion(s), which is/are each provided with the flow rate measurement unit; and the other measurement passage portion(s), which is/are not provided with the flow rate measurement unit.

Flow meter device

Hatching egg inspection apparatus and hatching egg inspecting method using a central and outer light emitter

The present invention provides a photosensitive resin composition which is superior in water-developing properties, resilience, strength of resin plate after exposure, elongation at break, and transparency of resin plate. The composition comprises:

Water-developing photosensitive resin composition

Growing community of inventors

Kyoto, Japan

Kenji Yasuda