Citizen Watch Company, Ltd.

Citizen Electronics Co., Ltd.

Citizen Holdings Company, Ltd.

Max Co., Ltd.

Mitsubishi Electric Corporation

Suntory Holdings Limited

San-ei Kagaku Co., Ltd.

Takashi Akiyama

Masafumi Ide

Kanetaka Sekiguchi

Masami Kikuchi

Yuichi Akiba

Yuki Ochiai

Shigehisa Watanabe

Koji Nakagawa

Takashi Toida

Tatsuro Yamada

Koichi Hoshino

Yasushi Kaneko

Keisuke Sakai

Satoshi Goto

Rintaro Takahashi

Ryo Tamura

Rintarou Takahashi

Sachiko Kawada

Takeshi Morijiri

Takashi Shimura

Masashi Watanabe

Katsuo Matsuyama

Hidekazu Arai

Takanori Ban

Hisashi Fukasawa

Shinya Ito

Yasushi Nakagawa

Masahiko Hasegawa

Susumu Hayashi

Yuki Nishikawa

Shigeru Yokoi

Yasushi Horiuchi

Isao Ochi

Masatoshi Sasuga

Tsutomu Ohara

Go Kira

Masatoshi Aihara

Ken Kobayashi

Kazunobu Katase

Yoshihiro Hosokawa

Atsushi Tonosaki

Yoshihisa Hirayama

Naoyoshi Tohyama

Masafuni Ide

Yukio Kamiishi

Hideo Ushioda

Watanabe Masashi

Shuichi Harada

Ryoichi Watanabe

Dai Sawada

Masahiro Aigami

Kunitaka Kobayashi

Takao Houjyou

Tatsuya Murase

Yuki Ochial

A binding machine includes a first main body, a second main body and a bridge part. The first main body houses a binding part which twists a wire and a driving part which drives the binding part. The second main body is provided with a handle part including an operation trigger. The bridge part connects the first main body and the second main body to each other.

Binding machine

A resin made container includes a spout portion to/from which a cap can be attached/detached, a shoulder portion continuous with the spout portion, a body portion continuous with the shoulder portion and a bottom portion continuous with the body portion and disposed at a lowermost part. A decompression absorption portion provided in form of a recess in the body portion includes a bulging area protruding to the outer side of the container.

Resin made container

Provided herein are: a movable part that is provided with coils placed correspondingly to magnets arranged in an arc shape, a pressure sensor, vertical-side hydrostatic pads, and a lateral-side hydrostatic plate and lateral-side hydrostatic pads caused to move in a manner matched to the shape of the magnets; and a stationary part that is provided with a base on which the magnets and vertical-side hydrostatic plates being opposite to the vertical-side hydrostatic pads are placed, a wall on which a lateral-side hydrostatic pad being opposite to the lateral-side hydrostatic plate is placed, a wall on which a lateral-side hydrostatic plate being opposite to the lateral-side hydrostatic pads is placed, and a wall to which an actuator coupled to the pressure sensor through a ball joint.

Thrust measuring device

An LED drive circuit in which a bright change of an LED is suppressed even if the voltage of a full-wave rectified waveform fluctuates is provided. The LED drive circuit includes a bridge rectifier circuit, an LED string made up by a plurality of LEDs being connected in series and supplied with a current from the bridge rectifier circuit, and a current limiting circuit that has a current input terminal and a current output terminal connected onto a path that starts from the bridge rectifier circuit and returns to the bridge rectifier circuit via the LED string, which limits a current that flows through the LED string to an upper limit current value or smaller, and further, which decreases the upper limit current value in accordance with the amount of rise in the voltage when the voltage at the current input terminal viewed from the current output terminal rises.

LED drive circuit

Provided is an LED drive circuit whereby the light emission color is easily changed when dimming by adjusting the current that drives the LED. The LED drive circuit has: a variable constant current source; a first LED row having a plurality of LEDs connected in series and emitting light in a first light emission color; a second LED row having a plurality of LEDs connected in series and emitting light in a second light emission color; and a current limiting circuit including a current detection element and a switch element. The LED drive circuit is characterized by: the threshold voltage for the first LED row being larger than the threshold voltage for the second LED row; the first LED row and the second LED row being connected in parallel to the variable constant current source; and the current limiting circuit limiting the current flowing to the second LED row, on the basis of the current flowing to the current detection element via the first LED row.

The LED drive circuit has a rectifying circuit that rectifies an alternating-current voltage, an LED string including a plurality of LEDs connected in series, a first switch whose one end is connected to a cathode of an LED in a last stage of the LED string, a capacitor whose one end is connected to the other end of the first switch, a second switch that is connected between one end of the capacitor and the anode of the LED in the first stage of the LED string, and a third switch that is connected between the cathode of the LED in the last stage of the LED string and a second terminal of the rectifying circuit, and which turns on when the full-wave rectified voltage is lower than a charge start voltage and turns off when the full-wave rectified voltage is higher than or equal to the charge start voltage.

LED drive circuit including a plurality of LEDs connected in series

An LED module according to the present invention includes: a mounting substrate; a first LED group including a plurality of LEDs mounted in a first light-emitting area extending in a first direction on the mounting substrate; a second LED group including a plurality of LEDs mounted in a second light-emitting area located outside the first light-emitting area; a dam material surrounding a periphery of the second light-emitting area; a first fluorescent resin coating the first LED group and causing the first light-emitting area to emit light having a first color temperature; and a second fluorescent resin coating at least the second LED group and causing the second light-emitting area to emit light having a second color temperature higher than the first color temperature, and viscosity of the first fluorescent resin is higher than viscosity of the second fluorescent resin.

LED module

The purpose of the present invention is to reduce the size and thickness of an LED module. The LED module includes a circuit substrate, at least two supply terminals, a plurality of LED dies, a plurality of FET die, a constant current circuit, a dam member, a fluorescent resin, a resistor network, and a bypass circuit, wherein the constant current circuit includes one of the plurality of FET die and the bypass circuit includes other of the plurality of FET die, a portion of the dam enclosing the LED block region forms a portion of the dam enclosing the circuit block region, and the dam member enclosing the LED block region has a annular shape and the dam member enclosing the circuit block region has a rectangular shape except for said portion of the dam member.

Packaging of LED chips and driver circuit on the same substrate

The purpose of the present invention is to provide an LED driving circuit with which it is possible to easily manage the color temperature by adjusting light. An LED driving circuit, characterized in having: a first LED group in which a plurality of first LEDs are serially connected, the first LED group contributing to emission of light having a first color temperature; a second LED group in which a plurality of second LEDs are serially connected, the second LED group contributing to emission of light having a second color temperature; a third LED group in which a plurality of second LEDs are serially connected, the second LED group contributing to emission of light having the second color temperature; and a control unit for switching, in response to an increase in a rectified output voltage, from illumination of only the first LED group to illumination of only the second LED group and then from illumination of only the second LED group to illumination of the second LED group and the third LED group, the number of first LEDs included in the first LED group being less than the number of second LEDs included in the second LED group.

LED driver circuit

An LED illuminator configured to further reduce total harmonic distortion is provided. The LED illuminator has: a first LED string including a first partial LED string and a second partial LED string; a second LED string including a third partial LED string and a fourth partial LED string; a first switching circuit configured to switch between a state where only the first partial LED string is connected to a rectifier and a state where the first partial LED string and the second partial LED string connected in series are connected to the rectifier as a full-wave rectified voltage waveform that is output from the rectifier increases/decreases; and a second switching circuit configured to switch between a state where only the third partial LED string is connected to the rectifier and a state where the third partial LED string and the fourth partial LED string connected in series are connected to the rectifier, and the switching timing by the first switching circuit and the switching timing by the second switching circuit are set so as to differ from each other.

LED illumination device

In a first aspect of the present inventive subject matter, a light-emitting device includes a substrate; a light-emitting element electrically connected to the substrate and arranged in a light-emitting area that is positioned on an upper surface of the substrate; and an electronic part that is electrically connected to the substrate and arranged outside the light-emitting area on the upper surface of the substrate, the electronic part obliquely protruding from an edge of the upper surface of the substrate.

Light-emitting device and lighting appliance including the light-emitting device

Light-emitting diode

Growing community of inventors

Sayama, Japan

Takashi Akiyama