Patents by Inventor Hiroyuki Aoki
Hiroyuki Aoki has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 5650844Abstract: The contrast of an LCD panel is accurately measured with a small number of CCD pixels when measuring the LCD panel using a CCD camera. Therefore, a CCD area sensor is used in the CCD camera in this invention. An LCD driver section displays a calibration pattern or test patterns on the LCD panel to be inspected. An image measuring section performs A/D conversion on the contrast detected by the CCD pixels, and a CCD address setting means of the LCD pixels specifies the positions of the LCD pixels and the positions of the corresponding CCD pixels using luminescent spots of a calibration pattern. The address setting means determines the sampling addresses of each of the LCD pixels from the addresses of the luminescent spots using real number calculations. A presampling processing means converts the measured image to an image with the same number of pixels as the pattern on the LCD panel by means of linear interpolation.Type: GrantFiled: July 14, 1995Date of Patent: July 22, 1997Assignee: Advantest CorporationInventors: Hiroyuki Aoki, Yoshihisa Matsumura
-
Patent number: 5592185Abstract: An antenna apparatus comprises a dielectric substrate, an earth conductor mounted on one surface of the substrate and forming a microstrip transmission line, an upper conductor mounted on the other surface of the substrate and forming a microstrip transmission line, an antenna element formed integrally with the microstrip transmission lines, and a delayed wave opening situated in the earth conductor in confronting relationship with the upper conductor.Type: GrantFiled: September 25, 1995Date of Patent: January 7, 1997Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Yasuhiro Itabashi, Kazuhito Miyashita, Yoshiyuki Chatani, Takayoshi Furuno, Hiroaki Miyashita, Toshio Masujima, Makoto Matsunaga, Takashi Katagi, Hiroyuki Aoki, Tetsuo Haruyama
-
Patent number: 5519485Abstract: The present invention relates to a stereo image measuring apparatus for displaying stereo images and effecting three-dimensional measurement and a correlation process on a screen for displaying the stereo images, and particularly to a stereo image measuring apparatus for making it possible to easily take hold of measuring points and to effect a correlation process after feature points have been extracted in the vicinity of the position where each cursor exists. Corresponding points for other image, which correspond to measuring points for one image, are searched. Each of display units serves so as to apply marks on the determined corresponding points based on the measured points and the result of the correlation process.Type: GrantFiled: August 2, 1993Date of Patent: May 21, 1996Assignee: Kabushiki Kaisha TopconInventors: Hitoshi Ohtani, Fumio Ohtomo, Hiroyuki Aoki
-
Patent number: 5494978Abstract: A stabilized polysilazane obtained by reacting an inorganic polysilazane having a number average molecular weight of about 100 to about 100,000 with an alcohol, an organic acid, an ester, a ketone, an aldehyde, a mercaptan, or an alkysilazane preferably at a molar ratio of from 50/50 to 99.99/0.01 is described.Type: GrantFiled: November 30, 1994Date of Patent: February 27, 1996Assignee: Tonen CorporationInventors: Yasuo Shimizu, Yuuji Tashiro, Hiroyuki Aoki, Masaaki Ichiyama, Hayato Nishii, Toshihide Kishi, Kouji Okuda, Takeshi Isoda
-
Patent number: 5410199Abstract: A vertically carrying apparatus comprising a carrying capsule that has a space for accommodating an object which is to be carried, the capsule incorporating a horizontal superconducting coil, and armature coils that are vertically arranged side by side outside the carrying capsule, wherein upward thrust force is obtained by a correlation between a persistent current that flows in the superconducting coil and magnetic fields that are produced around the armature coils.The vertically carrying apparatus further comprises a coil support device which includes the superconducting coil, a coil support member that supports the superconducting coil, a helium vessel that accommodates the superconducting coil and the coil support member and that also supports the coil support member through an oscillation preventing member, and a vacuum vessel that accommodates and supports the helium vessel.Type: GrantFiled: October 25, 1990Date of Patent: April 25, 1995Assignees: Doryokuro Kakunenryo Kaihatsu Jigyodan, Mitsubishi Heavy Industries, Ltd.Inventors: Manabu Kinugasa, Tomoyuki Mizushina, Hiroyuki Aoki, Toshihide Nakano, Takuya Kimura, Kazuyoshi Hayakawa, Kenichi Matsunaga
-
Patent number: 5354586Abstract: A tubular liner for lining the inner wall of a pipe such as sewer pipe made up of a flexible tubular resin-absorbent fabric to be impregnated with a thermosetting liquid resin and a tubular plastic film welded on the external surface of the tubular resin-absorbent fabric; also disclosed are the methods for making such tubular liner and for impregnating such tubular liner with the thermosetting liquid resin, and in particular the impregnation method is characterized by using a plurality of vacuum suction hoses.Type: GrantFiled: December 7, 1992Date of Patent: October 11, 1994Assignees: Shonan Gosei-Jushi Seisakusho K.K., Yokoshima & Company, OAR Inc.Inventors: Yasuhiro Yokoshima, Hiroyuki Aoki
-
Patent number: 5280729Abstract: To obtain stable linear torque-output characteristics over a wide torque range in a magnetostrictive torque detecting apparatus having a shaft to be measured, an exciting coil for magnetically exciting the shaft, and a detecting coil for detecting magnetostrictive components generated in the shaft distorted by a torque, the shaft is particularly composed of a substrate shaft portion made of a high yield point material and a shape anisotropic layer portion made of a high magnetostrictive material metallographically welded on an outer surface of the substrate shaft. The welded shape anisotropic layer portion is formed with two symmetrical groups of concave/convex portions each arranged at regular angular intervals on the outer circumferential surface thereof at an inclination angle with respect to the axial direction of the shaft.Type: GrantFiled: April 14, 1992Date of Patent: January 25, 1994Assignees: Nissan Motor Co., Ltd., Daido Steel Co., Ltd.Inventors: Hiroyuki Aoki, Munekatsu Shimada, Itaru Shibata, Mikiya Shinohara, Masashi Mizuno, Shinichiro Yahagi, Masaru Nagata, Nobuyuki Matsui, Shigeo Hanashima
-
Patent number: 5151390Abstract: Inorganic fibers having a high strength and a high modulus of elasticity at a high temperature are provided. The inorganic fibers are amorphous inorganic silicon nitirde-based fibers composed of silicon and nitrogen, optionally with oxygen, carbon and hydrogen, and having atomic ratio between above respective elements of N/Si=0.3 to 3, O/Si=up to 15, C/Si=up to 7 and H/Si=up to 15, wherein ratios of X-ray scattering intensity thereof to that of air at 1.degree. and 0.5.degree. are from 1 to 20 respectively and the silicon nitride-based fiber is still amorphous after heating in an inactive atmosphere at 1200.degree. C. for 1 hour. Composites of a metal, a ceramics, and a high molecular weight organic compound reinforced with the above fibers are also provided.Type: GrantFiled: July 18, 1991Date of Patent: September 29, 1992Assignee: Toa Nenryo Kogyo Kabushiki KaishaInventors: Hiroyuki Aoki, Tadashi Suzuki, Toshio Katahata, Mutsuo Haino, Genshiro Nishimura, Hiroshi Kaya, Kozaburo Tamura, Takeshi Isoda
-
Patent number: 5128286Abstract: A shaped body is disclosed which comprises substantially amorphous, silicon nitride-based ceramic containing Si, N and B as essential components and O, C and H as optional components in amounts providing the following atomic ratios:N/Si: 0.05 to 2.5,B/Si: 0.01-3,O/Si: 2.0 or less,C/Si: 1.5 or less, andH/Si: 0.1 or less.Type: GrantFiled: June 18, 1990Date of Patent: July 7, 1992Assignee: Tonen CorporationInventors: Osamu Funayama, Mikiro Arai, Hiroyuki Aoki, Yuuji Tashiro, Toshio Katahata, Kiyoshi Sato, Takeshi Isoda, Tadashi Suzuki, Ichiro Kohshi
-
Patent number: 5121199Abstract: In a color image signal evaluating apparatus and method, a color image signal corresponding to each pixel position on a display screen is converted by a color signal converter to an I signal and a Q signal, which are stored, as pixel data, in first and second image memories, each at an address corresponding to the pixel position. The I signal and Q signal read out of the first and second image memories are differentiated by first and second differentiators, respectively, with respect to the directions of pixel arrays to thereby obtain an I-signal differentiated value and a Q-signal differentiated value at each pixel position. A vector-composed value of the I-signal differentiated value and the Q-signal differentiated value at each pixel position is calculated and is stored in a third image memory.Type: GrantFiled: November 29, 1990Date of Patent: June 9, 1992Assignee: Advantest CorporationInventor: Hiroyuki Aoki
-
Patent number: 5107711Abstract: A torque sensor provides a specific property for a shaft member so as to improve sensitivity and so as to minimize hysteresis in measurement of the torque exerted thereon. The shaft member is provided specific composition achieving the desired level of sensitivity without increasing the hysteresis. In the alternative, the shaft member is processed in order to provide the desired property.Type: GrantFiled: March 6, 1989Date of Patent: April 28, 1992Assignees: Nissan Motor Company, Limited, Daidotokushuko KabushikigaishaInventors: Hiroyuki Aoki, Shinichiro Yahagi, Takanobu Saito
-
Patent number: 5094315Abstract: A scooter having an improved seat, fuel tank and storage compartment arrangement. The seat is divided into a front portion and a rear portion with the rear portion being hinged and affording access to a storage compartment positioned beneath it with the opening closed by the rear seat portion being inclined at an acute angle to the horizontal. A fuel tank is positioned beneath the front seat and has a fill neck which is accessible through an opening at the side of the seat. This opening is closed by a closure member that is moveable between a closed position and an opened position. Either directly or remotely positioned latching arrangements are disclosed for the closure member.Type: GrantFiled: June 21, 1990Date of Patent: March 10, 1992Assignee: Yamaha Hatsudoki Kabushiki KaishaInventors: Norio Taki, Hiroyuki Aoki
-
Patent number: 5052117Abstract: A gear measuring apparatus comprises detecting device for outputting detection signals, an X-direction linear travel system for making the detecting device travel linearly in an X direction perpendicular to a radial line and rotation device for rotating the detecting device by causing the X-direction linear travel system to rotate around the rotation center of the gear. The gear measuring apparatus further comprises control device for interlocking the rotation and the X-direction linear travel of the detecting device so that a probe draws the standard involute tooth form, because the detecting device, which are set to an initial position, are rotated at only an extremely small angle .theta. by the rotation device, and at the same time the detecting device are made to travel linearly by .theta..multidot.(Dp.multidot.cos.alpha.).multidot.Type: GrantFiled: April 19, 1990Date of Patent: October 1, 1991Assignee: Hitachi Construction Machinery Co., Ltd.Inventors: Keizou Kubodera, Toshiaki Takeda, Hiroyuki Aoki
-
Patent number: 5032551Abstract: Silicon nitride based ceramic fibers containing Si, N, O and at least one metal M in amounts providing the atomic ratios N/Si of 0.3 to 3, O/Si of 0.0001 to 15 and M/Si of 0.001 to 5 and exhibiting an X-ray small angle scattering such that the ratio of the intensity of the small angle scattering of the fibers to that of air is 1 to 20. The ceramic fibers are produced by spinning of a polymetallosilazane into fibers and calcining the spun fibers and are useful as reinforcing fibers for composite artices having a metal or resin matrix.Type: GrantFiled: March 2, 1989Date of Patent: July 16, 1991Assignee: Toa Nenryo Kogyo Kabushiki KaishaInventors: Yuuji Tashiro, Osamu Funayama, Mikiro Arai, Hiroyuki Aoki, Takeshi Isoda, Hiroshihi Kaya, Tadashi Suzuki, Toshio Katahata, Mutsuo Haino, Genshiro Nishimura
-
Patent number: 4991447Abstract: A torque detecting device has a measuring shaft, an excitation device and a detector for detecting a magnetostriction passing through said measuring shaft. The device is able to measure the torque with accuracy even if a temperature gradient is produced in the axial direction of the measuring shaft by making the measuring shaft from a material having specified electromagnetic characteristics at least in a part in which said magnetostrictive force is detected.Type: GrantFiled: November 2, 1989Date of Patent: February 12, 1991Assignees: Daido Tokushuko Kabushiki Kaisha, Nissan Motor Company LimitedInventors: Shinichiro Yahagi, Hiroyuki Aoki, Takanobu Saito
-
Patent number: 4989460Abstract: A magnetostriction type torque sensor employs a plurality of detector coils arranged in axial arrangement along an objective rotary body. The detector coils are so designed and arranged as to compensate influence of temperature, particularly the error caused due to axial temperature gradient caused in the objective rotary body.Type: GrantFiled: December 23, 1988Date of Patent: February 5, 1991Assignees: Nissan Motor Company, Limited, Daidotokushuko KabushikikaishaInventors: Masashi Mizuno, Katsuhiro Kojima, Yoji Ozawa, Takanobu Saito, Munekatsu Shimada, Masaaki Katsumata, Hiroyuki Aoki
-
Patent number: 4964308Abstract: In a device for measuring torsional torque applied to a fixed or revolving shaft made of a magnetic material by producing a magnetic circuit in which the flux path includes a section of the shaft and detecting a magnetostrictive change induced by the torque, the surface of said section of the shaft is formed with a series of parallel grooves and/or lands or protuberances inclining at a suitable angle with the longitudinal axis of the shaft to thereby cause magnetic flux in the surface layer of the shaft to extend approximately in the direction of tensile or compressive stress produced by the torque. It is preferred to form a first series of parallel grooves extending sprially and inclining 45.degree. with said axis in one section of the shaft and a second series of parallel and spiral grooves inclining 45.degree. with said axis and reverse to the first series of grooves in another section of the shaft to detect a difference between magnetostrictive changes in the respective sections.Type: GrantFiled: January 31, 1989Date of Patent: October 23, 1990Inventors: Shouichi Edo, Hiroyuki Aoki
-
Patent number: 4840073Abstract: A torque detecting device has a measuring shaft and a magnetic circuit incorporating the measuring shaft into a magnetic path which includes a device for detecting a magnet-ostrictive force passing through said measuring shaft. The device is able to increase the output sensitivity, decrease the rotative fluctuation of output and decrease the hysteresis by making the measuring shaft forming the magnetic path from an iron base alloy having a specific composition.Type: GrantFiled: September 25, 1987Date of Patent: June 20, 1989Assignees: Nissan Motor Company Ltd., Daido Tokushuko Kabushiki KaishaInventors: Hiroyuki Aoki, Shinichiro Yahagi, Takanobu Saito
-
Patent number: 4833926Abstract: To simultaneously measure the magnitudes and directions of both axial and torsional stresses produced in a shaft made of magnetostrictive material and provided with first and second sensing segment areas formed in mirror symmetrical arrangement along an outer circumferential surface thereof, the magnetostrictive stress measurement apparatus comprises a first coil provided around the first sensing segment area; a first bridge circuit for detecting change in inductance of the first coil; and a second coil provided around the second sensing segment area; a second bridge circuit for detecting change in inductance of the second coil; and a calculator for calculating an addition of a first inductance change detected by the first bridge circuit and a second inductance change detected by the second bridge circuit to detect an axial stress and a subtraction between the first and second inductance changes to detect a torsional stress.Type: GrantFiled: July 28, 1988Date of Patent: May 30, 1989Assignee: Nissan Motor Co., Ltd.Inventors: Masaki Todoroki, Masasi Watanabe, Hiroyuki Aoki
-
Patent number: D305748Type: GrantFiled: February 9, 1987Date of Patent: January 30, 1990Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Akiyoshi Kaneko, Masamoto Ito, Hiroyuki Aoki