Matsushita Electric Industrial Co., Ltd.

Panasonic Corporation

Mita Industrial Co., Ltd.

Osaka University

Koichi Baba

Masaharu Oyama

Masaichiro Tatekawa

Kouji Ikeda

Koji Ikeda

Hideki Tatematsu

Akihiro Yasuda

Koji Matsuo

Noriyuki Tajima

Shigemitsu Tani

Masashi Tomita

Takeshi Watanabe

Tsuyoshi Inoue

Kenichi Satake

Kikunosuke Tsuji

Keisuke Fujimoto

Kohji Nishida

Setsuo Hori

Kei Ohkubo

Hiroshi Uyama

Masayuki Isayama

Yukio Arai

Haruyasu Asahara

Yoko Ohba

Taka-Aki Asoh

Shizuka Koh

The present invention provides a new method for producing a lens to be fitted to an eye in a simple manner at a low cost. In order to achieve the aforementioned object, the present invention provides a method for producing a lens to be fitted to an eye, including the step of: hydrophilizing a surface of a polymer lens by reacting with a compound radical, wherein the compound radical is a radical containing one element selected from the group consisting of Group 15 elements and Group 16 elements, and a Group 17 element.

Method for producing lens to be fitted to eye and lens to be fitted to eye

A fixing device capable of suitable fixing even after moving to a print mode by reducing overshoot at moving to a print mode, and an image forming device using this. A mode switching unit informs a set or switched print mode to a calorie control unit and a rotation speed control unit. The calorie control unit controls supply power to a fixing roller, a heating roller and a fixing belt, that is a heating output from a heating means consisting of the fixing roller, the heating roller and the fixing belt according to a print mode informed from the mode switching unit. Therefore, the image fixing temperature of a non-fixed image at the heating means can be maintained at a specified temperature corresponding to a print mode.

Fixing device having a variable rotation speed rotatable heating section and image forming device

A heating apparatus that enables an abnormally high temperature detection section that detects, when a heating element heated by means of electromagnetic induction reaches an abnormally high temperature, this abnormally high temperature, to operate speedily and reliably irrespective of the material and temperature characteristic of the heating element in a low-cost and compact configuration. In this apparatus, thermostatis disposed on the same side as exciting coilwith respect to heat generating beltand between winding bundles of a conductor wire of exciting coil. This allows coil guideto hold both thermostatand exciting coiland allows these wires and terminals to be concentrated on one location, thus making it possible to reduce the number of parts and assembling man-hours and configure the body of the apparatus in a low-cost and compact configuration. Furthermore, thermostatoperates reliably when heat generating beltreaches an abnormally high temperature irrespective of whether the material of heat generating beltis a magnetic member or not and whether the temperature of heat generating belthas exceeded a Curie temperature or not.

Heating apparatus, fixing apparatus and image forming apparatus

As a cooling mechanism that cools the entire paper passage area of a heat-producing belt, a rotational drive method of the heat-producing belt is employed and the heat-producing belt is cooled by rotational cooling by being made to idle when paper is not being passed through. An excitation apparatus and the above-described cooling mechanism are controlled so that recording paper is not passed through and the heat-producing belt is cooled while being heated over the heating width when the small-size recording paper is passed through until the temperature detected by a paper non-passage area temperature detecting sensor is at or below a predetermined fixing temperature. This fixing apparatus enables an excessive rise in temperature of a paper non-passage area of the heat-producing belt to be efficiently eliminated, and the temperature distribution of heat-producing belt to be made uniform in a short time.

Fixing device and temperature control method

An ink jet head includes: actuators each including a scanning electrode, a piezoelectric element and a recording electrode and arranged in a matrix pattern of n rows by m columns (where n and m are natural numbers equal to or greater than two) in terms of electrical circuit; and a driving circuit for supplying a scanning signal to the scanning electrodes for each column, while supplying a recording signal to each row of the recording electrodes in synchronization with the scanning signal. The actuators are geometrically arranged in n rows by m columns. A relay terminal, extending in a vertical direction, is provided in at least one inter-column space between vertical columns of the actuators for relaying signals from the driving circuit to the recording electrodes and the scanning electrodes. The recording electrodes and the scanning electrodes are connected to the relay terminal via lead wires extending in a horizontal direction.

Applying voltages to an ink jet printhead

An ink jet recording apparatus includes an ink jet head, a reference pulse generation circuit, and switch circuits. The reference pulse generation circuit is a circuit for generating, at a predetermined cycle, a first reference pulse Pbased on which a driving pulse is produced. A preliminary pulse Pis for vibrating an ink meniscus in the tip portion of a nozzle. A discharge pulse Pis for discharging an ink droplet through the nozzle. The switch circuits selectively input, to piezoelectric actuators, the preliminary pulse Pand the discharge pulse Pgenerated by the reference pulse generation circuit.

Ink jet recording apparatus

An ink jet recording apparatus includes: a head body provided with a nozzle and a pressure chamber; an actuator including a piezoelectric element and an electrode for applying a voltage across the piezoelectric element; and a driving circuit for supplying a driving signal to the electrode of the actuator. The driving signal includes, in one printing cycle, a pulse signal applied with an interval that is shorter than a predetermined pulse interval being equal to a Helmholtz period of a head, and a pulse signal applied with an interval that is longer than the predetermined pulse interval.

Ink jet head and ink jet recording apparatus

An ink jet recording apparatus includes: a head body provided with a nozzle and a pressure chamber; an actuator including a piezoelectric element and an electrode for applying a voltage across the piezoelectric element; and a driving circuit for supplying a driving signal to the electrode of the actuator. The driving circuit always supplies an auxiliary pulse signal in every printing cycle. When ink is to be discharged, the driving circuit supplies, after the auxiliary pulse signal is supplied, an ink discharge pulse signal for driving the actuator so that the ink is discharged and so that an ink meniscus vibration in the nozzle is resonant with that caused by the auxiliary pulse signal.

A printing head for an ink jet printer is provided with a plurality of ink jet sets. Each of the ink jets. Each of the ink jets includes an ink nozzle through which ink is ejected; a pressure chamber communicated with the ink nozzle and having a diaphragm made of a flexible plate; and a piezoelectric member bonded on an outside of the diaphragm for deforming the diaphragm to eject ink through the ink nozzle from the pressure chamber. The piezoelectric member includes a layer, having titanium an upper PZT layer chemically bonded on an upper surface of the titanium layer and polarized in a first direction; and a lower PZT layer chemically bonded on a lower surface of the titanium layer and polarized in a second direction opposite to the first direction. The titanium layer includes an interconnecting member and titanium members interconnected to each other by the interconnecting member forming a single titanium plate comb having teeth corresponding to the titanium members extending from two sides of the interconnecting member.

Printing head for an ink jet printer with titanium plate comb

Growing community of inventors

Osaka, Japan

Koichi Baba