Seiko Epson Corporation

Symetrix Corporation

Junichi Karasawa

Takashi Kumagai

Satoru Kodaira

Satoru Ito

Kunio Watanabe

Kazuhiro Maekawa

Hisanobu Ishiyama

Takashi Fujise

Noboru Itomi

Shuji Kawaguchi

Eiji Natori

Kazuo Tanaka

Masahiko Moriguchi

Takeshi Kijima

Takayuki Saiki

Hiromu Miyazawa

Koji Ohashi

Yasuaki Hamada

Katsuhiko Maki

Kazumasa Hasegawa

Hiroyuki Takamiya

Eiju Hirai

Takeo Kawase

Masao Nakayama

Masayoshi Todorokihara

Vikram Joshi

Takanori Aimono

Mayumi Ueno

Yoshihiro Hokari

Keiichi Inoue

Masami Hashimoto

Tomoya Arai

Takeshi Kumagai

Takuro Yasuda

Kazushi Omote

Keiko Ando

Yoshinobu Asako

A plurality of wall surfaces that constitute inner walls of the pressure compartment includes a surface of the recessed portion and the first wall surface, and an angle formed by the first surface and the first wall surface is greater than 90&#xb0; and less than 180&#xb0;.

Liquid ejecting head and liquid ejecting apparatus

In a liquid ejection control device, an ejection tube section type acquisition unit discriminates an ejection tube section type of an ejection tube section mounted in a main body section, and acquires a fitted correspondence relationship fitting the discriminated ejection tube section type. A voltage amplitude setting unit sets a voltage amplitude of a drive voltage waveform so as to cause kinetic energy to meet an energy instruction value input by using an energy dial based on a rising index value related to rising of the drive voltage waveform and a repetitive frequency instruction value input by using a repetitive frequency dial with reference to the fitted correspondence relationship.

Liquid ejection control device, liquid ejection system, and control method

In a liquid ejection control device, an ejection tube section type acquisition unit discriminates an ejection tube section type of an ejection tube section mounted in a main body section, and acquires a fitted correspondence relationship fitting the discriminated ejection tube section type. A voltage amplitude setting unit sets a voltage amplitude of a drive voltage waveform so as to cause momentum to meet a momentum instruction value input by using a momentum dial based on a rising index value related to rising of the drive voltage waveform and a repetitive frequency instruction value input by using a repetitive frequency dial with reference to the fitted correspondence relationship.

A liquid ejection control apparatus, which controls a drive voltage waveform applied to a piezoelectric element so as to control ejection of a pulsed liquid jet, includes a first operation unit that receives input of an index value for setting a position of an inflection point in a rising portion of the drive voltage waveform, and a control unit that sets the position of the inflection point in the rising portion of the drive voltage waveform according to the index value so as to control changing of the drive voltage waveform.

Liquid ejection control apparatus, liquid ejection system, and control method

A liquid ejection control apparatus, which controls a drive voltage waveform applied to a piezoelectric element so as to control ejection of a pulsed liquid jet, includes a first operation unit that receives input of an index value for setting a flow velocity peak timing of a main jet of the pulsed liquid jet, and a control unit that sets a rising portion of the drive voltage waveform according to the index value so as to control changing of the drive voltage waveform.

In a liquid ejection control apparatus, an operation unit includes an energy dial used to input an energy indication value related to kinetic energy of a pulsed liquid jet ejected from a liquid ejection device, and a repetition frequency dial used to input a repetition frequency indication value related to the number of times of ejection per unit time of the pulsed liquid jet. A control unit includes a rising waveform shape setting section which sets a rising waveform shape of a drive voltage waveform so that the kinetic energy has the energy indication value on the basis of voltage amplitude of the drive voltage waveform and the repetition frequency indication value. The repetition frequency dial may be omitted, and a repetition frequency may be fixed to a predetermined value.

In a liquid ejection control device, an operation unit includes an energy dial for inputting an energy instructing value related to kinetic energy of a pulsed liquid jet ejected from a liquid ejection device, and a repetitive frequency dial for inputting a repetitive frequency instructing value related to the number of times ejection of the pulsed liquid occurs per unit time. In addition, a controller includes a voltage magnitude setting section that sets voltage magnitude of the drive voltage waveform such that the kinetic energy becomes the energy instructing value, based on a rising index value related to rising of the drive voltage waveform and the repetitive frequency instructing value.

In a liquid ejection control device, an operation unit includes a momentum dial for inputting a momentum instructing value related to momentum of a pulsed liquid jet ejected from a liquid ejection device, and a repetitive frequency dial for inputting a repetitive frequency instructing value related to the number of times ejection of the pulsed liquid occurs per unit time. In addition, a controller includes a rising frequency setting section that sets a rising frequency as a rising index value related to rising of a drive voltage waveform such that the momentum becomes the momentum instructing value, based on voltage magnitude of the drive voltage waveform and the repetitive frequency instructing value.

In a liquid ejection control device, an operation unit includes a momentum dial for inputting a momentum instructing value related to momentum of a pulsed liquid jet ejected from a liquid ejection device, and a repetitive frequency dial for inputting a repetitive frequency instructing value related to the number of times ejection of the pulsed liquid occurs per unit time. In addition, a controller includes a voltage magnitude setting section that sets voltage magnitude of the drive voltage waveform such that the momentum becomes the momentum instructing value, based on a rising index value related to rising of the drive voltage waveform and the repetitive frequency instructing value.

In a liquid ejection control device, an operation unit includes an energy dial for inputting an energy instructing value related to kinetic energy of a pulsed liquid jet ejected from a liquid ejection device, and a repetitive frequency dial for inputting a repetitive frequency instructing value related to the number of times ejection of the pulsed liquid occurs per unit time. In addition, a controller includes a rising frequency setting section that sets rising frequency as a rising index value related to rising of a drive voltage waveform such that the kinetic energy becomes the energy instructing value, based on voltage magnitude of the drive voltage waveform and the repetitive frequency instructing value.

A fluid ejection device includes: a pressure chamber; an actuator having a displacement plane that varies the volume of the pressure chamber; a delivery channel pipe communicating with the pressure chamber; a first reflection surface of pressure wave formed as part of a paraboloid of revolution that reflects a plane pressure wave by displacement of the actuator, the plane pressure wave propagating through the pressure chamber; and a second reflection surface of pressure wave formed as part of a paraboloid of revolution or an ellipsoid of revolution which is disposed so as to face the first reflection surface of pressure wave, wherein the first reflection surface of pressure wave and the second reflection surface of pressure wave have a common first focus, and a pressure wave reflected from the second reflection surface of pressure wave propagates through the delivery channel pipe and ejects fluid.

Fluid ejection device and medical device

The present invention provides an organic semiconductor element which has a low hygroscopic property and whose property is hardly deteriorated with time and an electronic device and electronic equipment each provided with such an organic semiconductor element and having high reliability. The organic semiconductor element of the present invention includes: a source electrode; a drain electrode; a gate electrode; a gate insulating layer; an organic semiconductor layer; and a buffer layer (another insulating layer), wherein at least one of the gate insulating layerand the buffer layercontains an insulating polymer with a main chain having both end portions and including repeating units represented by the following general formula (1) or (2): 

Organic semiconductor element, method of manufacturing organic semiconductor element, electronic device, electronic equipment and insulating layer forming composition

An integrated circuit device includes at least one data driver block for driving data lines, a plurality of control transistors TCand TC, each of the control transistors being provided corresponding to each output line of the data driver block and controlled by using a common control signal, and a pad arrangement region in which data driver pads Pand Pfor electrically connecting the data lines and the output lines QLand QLof the data driver block are disposed. The control transistors TCand TCare disposed in the pad arrangement region.

Integrated circuit device and electronic instrument

An integrated circuit device includes first to Nth circuit blocks CBto CBN, a first interface region disposed along a fourth side and on the Dside of the first to Nth circuit blocks CBto CBN, and a second interface region disposed along a second side and on the Dside of the first to Nth circuit blocks CBto CBN. A local line LLG formed using a wiring layer lower than an Ith layer is provided between the adjacent circuit blocks as at least one of a signal line and a power supply line. Global lines GLG and GLD formed using the Ith or higher wiring layer are provided along the direction Dover the circuit block disposed between the nonadjacent circuit blocks as at least one of a signal line and a power supply line.

Growing community of inventors

Tatsuno-machi, Japan

Junichi Karasawa