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Hiromatsu, JP
Hidenori Hiromatsu, Utsunomiya-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20110041962 | Spring steel with improved hardenability and pitting resistance - The present invention provides a spring steel that has superior hardenability, undergoes less pitting in a corrosive environment, and can achieve higher stress and toughness. More specifically, the present invention provides a high-strength and high-toughness spring steel with improved hardenability and pitting resistance, containing, in mass percent, 0.40 to 0.70% carbon, 0.05 to 0.50% silicon, 0.60 to 1.00% manganese, 1.00 to 2.00% chromium, 0.010 to 0.050% niobium, 0.005 to 0.050% aluminum, 0.0045 to 0.0100% nitrogen, 0.005 to 0.050% titanium, 0.0005 to 0.0060% boron, no more than 0.015% phosphorus and no more than 0.010% sulfur, the remainder being composed of iron and unavoidable impurities, the steel having a tensile strength of at least 1700 MPa in 400° C. tempering after quenching and a Charpy impact value of at least 40 J/cm | 02-24-2011 |
Kenji Hiromatsu, Chiba JP
| Patent application number | Description | Published |
|---|---|---|
| 20080204782 | IMAGE READING APPARATUS AND IMAGE READING METHOD - An image reading apparatus is provided which includes a contact image sensor comprised of a plurality of sensor chips arranged in series, an analog image processor for processing an analog image signal from the contact image sensor, a unit for conducting black shading correction for each pixel and a unit for conducting white shading correction for each pixel. The image reading apparatus further includes a unit for digitally monitoring a black offset value corresponding to each chip with respect to the signal that has been processed by the analog image processor and a unit for adding and subtracting a black offset variation amount for each chip in the previous stage of the unit for conducting black shading correction for each pixel, and corrects black offset based on an instruction of a control unit. | 08-28-2008 |
| 20080303934 | IMAGE SENSOR AND IMAGE READING APPARATUS - A structure which meets a high-quality reading requirement and realizes high-speed color reading when the reading section of a color image forming apparatus adopts a color contact image sensor using CCDs as reading element arrays is disclosed. The image sensor of a color image reading section uses a color contact image sensor in which a plurality of CCDs are aligned as reading element arrays in the main scanning direction. In this case, each CCD has one analog shift register for RGB time-division reading, and three R, G, and B reading apertures arranged parallel to each other at a pitch corresponding to the reading resolution. The pixel pitch in the main scanning direction is constant. | 12-11-2008 |
| 20080316544 | IMAGE READING APPARATUS - Disclosed is an image reading apparatus including: an original transporting device for transporting an original; an image reader for reading an image of the original in a first reading region or a second reading region while transporting the original by the original transporting device; and a correcting device for correcting image data read in the second reading region by the image reader so as to give the image data the same white level as image data read in the first reading region based on the ratio of the white level of the second reading region to that of the first reading region. | 12-25-2008 |
| 20090073519 | IMAGE SCANNING APPARATUS, IMAGE SCANNING METHOD, AND PROGRAM FOR USE IN IMAGE SCANNING APPARATUS - A color image-scanning device has a fixed scan mode and a flow scan mode. In the fixed scan mode, a document is scanned while maintaining the document at a fixed location on a platen glass. In the flow scan mode, a document is fed from an automatic document feeder and is scanned while moving the document. In each of these modes, images are scanned in a main scanning direction and a sub scanning direction. Color registration errors in the main and sub scanning direction caused by an optical factor are corrected in accordance with correction values stored in a memory. Respective correction values for each of the main and sub scanning directions are acquired by scanning a test chart in each of the fixed-scan mode and the flow-scan mode and stored in the memory. Proper correction values are read from the memory depending on the scanning mode selected, and color registration errors are corrected in accordance with the read correction value. | 03-19-2009 |
Kuniaki Hiromatsu, Yokohama City JP
| Patent application number | Description | Published |
|---|---|---|
| 20100072645 | METHOD FOR PRODUCING ACTIVE GLASS NANOPARTICLES BY LASER ABLATION - A method for producing active glass nanoparticles that exhibit upconversion is described. The method employs pulsed-laser ablation of an active glass substrate using, for example, a high repetition rate ultra-short pulse duration laser under normal atmospheric conditions or in a liquid environment. | 03-25-2010 |
Takahiro Hiromatsu, Tokyo JP
| Patent application number | Description | Published |
|---|---|---|
| 20110177436 | MASK BLANK AND METHOD OF MANUFACTURING A TRANSFER MASK - A mask blank includes a transparent substrate and a light-shielding film formed on the transparent substrate. The light-shielding film is made of a material composed mainly of a metal that is dry-etchable with a chlorine-based gas. A resist film is used to form a transfer pattern in the light-shielding film. An etching mask film is formed on an upper surface of the light-shielding film and is made of a material containing a transition metal, silicon, and at least one of nitrogen and oxygen. A content ratio of the transition metal to a total of the transition metal and the silicon in the etching mask film is less than 9%. | 07-21-2011 |
Takashi Hiromatsu, Chiba JP
| Patent application number | Description | Published |
|---|---|---|
| 20090102088 | METHOD FOR MOLDING WASTE PLASTIC AND METHOD FOR THERMAL DECOMPOSITION OF PLASTIC - Exemplary embodiments of the present invention can be directed to producing high-density pellets by molding waste plastic and to producing high-strength coke by mixing the pellets with coal and dry-distilling the mixture in a coke oven. As feedstock is used waste plastic that contains polyethylene, polypropylene and polystyrene, which are plastics that soften at a low temperature, at a total rate of about 50% or greater. The waste plastic is molded using a molding method of extruding it from a nozzle of a screw-type stuffing machine. In the method of this invention, the waste plastic can be heated to about 180˜260° C. in the molding machine and gas in the molding machine is sucked out. By this operation, the polyethylene, polypropylene and/or polystyrene are made molten and the amount of gas in the plastic is reduced. The plastic in this state is compression-molded by extrusion from a nozzle of about 15˜60 mm diameter. The plastic molding obtained can be cut into chunks and cooled with a water cooler within about 3 seconds after cutting. | 04-23-2009 |
Yoshinori Hiromatsu, Toride-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20090184451 | CLAMP APPARATUS - A clamp apparatus includes a clamp unit capable of retaining a workpiece, a cylinder driven under the supply of a pressure fluid, and a drive force transmission mechanism, which is capable of transmitting a drive force from the cylinder to the clamp unit. The drive force transmission mechanism includes a guide body disposed displaceably inside of a body, two pairs of rollers retained rotatably on both side surfaces of the guide body, and a spindle inserted through a second link groove of the guide body that rotatably supports a clamp arm. The clamp arm is rotatably operated and is capable of clamping the workpiece under a displacement action of the guide body. | 07-23-2009 |