Patents by Inventor Seiji Matsumoto
Seiji Matsumoto 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).
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Publication number: 20020090204Abstract: The slicing circuit is provided with a data bus 8, a control register 1, a text RAM 2, a digital arithmetic and logic unit 3, a timing control circuit 4, an A/D converter 5, a SYNC separator 6, and a PLL circuit 7.Type: ApplicationFiled: April 2, 2001Publication date: July 11, 2002Inventor: Seiji Matsumoto
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Patent number: 6370319Abstract: A digital recording apparatus receives an analog signal containing picture and/or voice information, through an analog transmission line, and digitally records the analog signal. The analog signal is digitally recorded in a form containing electronic watermark information within a first portion of the analog signal containing the picture and/or voice information while adding copy control information indicating permission of free copying to a second portion of the analog signal not containing the picture and/or voice information when the detected electronic watermark information indicates permission of free copying. Digital recording of the analog signal is prohibited when the detected electronic watermark information indicates prohibition of copying, and the analog signal is digitally recorded with the copy control information indicating prohibition of subsequent recording added to the second portion of the analog signal when no electronic watermark information is detected.Type: GrantFiled: May 25, 1999Date of Patent: April 9, 2002Assignee: Yamaha CorporationInventors: Seiji Matsumoto, Masamichi Furukawa
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Patent number: 6335391Abstract: A latex adhesive for rubber/metal adhesion, which contains a copolymer consisting of, based on the weight of the copolymer, (A) 90.0 to 97.0% by weight of 2,3-dichloro-1,3-butadiene units, (B) 1.5 to 5.0% by weight of 1,2-dichloro-1,3-butadiene units, and (C) 1.5 to 5.0% by weight of 1,3-dichloro-1,3-butadiene units. The latex adhesive is prepared by polymerizing a monomer mixture consisting of the stated amounts of the monomers (A), (B) and (C) in the presence of a free-radical initiator, preferably a redox catalyst system, by an emulsion polymerization procedure. The latex adhesive has good mechanical stability and exhibits enhanced adhesion for rubber/metal adhesion.Type: GrantFiled: March 9, 2000Date of Patent: January 1, 2002Assignee: Tosoh CorporationInventors: Seiji Matsumoto, Tsuneo Hironaka, Shinji Ozoe, Tamotsu Sato
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Patent number: 6320829Abstract: Copying of digital data from a digital recording medium is controlled so as to prevent unauthorized copying. The digital data is transmitted from a transmitter-side apparatus to a receiver-side apparatus through interfaces thereof in a system of a plurality of digital apparatuses connected to each other through a bus and mutually authenticated. The interfaces permit transmission and receiving of the digital data only between the authenticated apparatuses. Copy control information indicating a copy restriction level is added to main data of the digital data recorded on the digital recording medium such that the main data contains a first portion containing at least one of picture information and voice information, and a second portion containing the copy control information. Electronic watermark information is added to the second portion of the main data. An error correction code is added to the main data, and then intentional error information having a particular pattern is added to the digital data.Type: GrantFiled: May 25, 1999Date of Patent: November 20, 2001Assignee: Yamaha CorporationInventors: Seiji Matsumoto, Masamichi Furukawa
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Patent number: 6318887Abstract: A light source arrangement for a battery-powered light source unit of an endoscope comprises an optically transparent base board, a single light emitting element such as a bare LED arranged at the center of and in close proximity to the back of the transparent base board or a plurality of light emitting elements such as bare LEDs arranged in close proximity to the back of the transparent base board at regular angular intervals and regular distances from the center of the transparent base board, and a reflector disposed behind the transparent base board so as to reflect light emanating backward from the light emitting element or elements toward the transparent base board.Type: GrantFiled: August 3, 1999Date of Patent: November 20, 2001Assignee: Fuji Photo Optical Co., Ltd.Inventor: Seiji Matsumoto
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Patent number: 6260994Abstract: A light source arrangement for a battery-powered light source unit of an endoscope comprises a cylindrical housing, a base disposed at one end of the housing, a plurality of LEDs connected to a flexible circuit board supported on the base and a focusing lens. A light guide for directing light emanating from the LEDs. The light guide comprises a reflective surface formed on an inner wall of the housing, a reflector having a concave reflective surface which is disposed at one end of the housing so as to surround the LEDs or a micro-lens array disposed in front of the LEDs with each micro lens aligned with the LED.Type: GrantFiled: August 3, 1999Date of Patent: July 17, 2001Assignee: Fuji Photo Optical Co., Ltd.Inventors: Seiji Matsumoto, Etsuo Nakano, Suwao Sato
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Patent number: 6057813Abstract: A microcomputer has a plurality of on screen display devices in one chip. Under control of a CPU, display tasks are respectively controlled in the on screen display devices in an independent manner, thereby obtaining a desired display screen on which the display tasks are simultaneously displayed. The microcomputer has a function of controlling priorities of display of the display tasks, and that of controlling occurrence of interrupt and existence of a mask in display of the display tasks. A desired display screen on which the display tasks are simultaneously displayed is obtained by combining these control functions.Type: GrantFiled: September 30, 1994Date of Patent: May 2, 2000Assignee: Mitsubishi Denki Kabushiki KaishaInventor: Seiji Matsumoto
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Patent number: 6018946Abstract: An exhaust manifold made of plate metal in which sufficient strength and rigidity can be ensured, lightening of the weight is intended by making walls thin as a whole, and early activation of a catalyst is easy. The exhaust manifold is one for a multi-cylinder internal combustion engine having two groups of cylinders selected so that exhaust strokes are not successive. The exhaust manifold includes two exhaust pipe sections containing exhaust pipes communicating with the cylinders of one of the groups respectively, confluence sections where the exhaust pipes in each of the exhaust pipe sections join respectively, and a gathering section where the confluence sections join.Type: GrantFiled: September 9, 1997Date of Patent: February 1, 2000Assignee: Honda Giken Kogyo Kabushiki KaishaInventor: Seiji Matsumoto
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Patent number: 5928100Abstract: A planetary gear has a lower hole which communicates with a radial groove formed in a carrier plate formed at a position near the end portion of an outer peripheral surface of a pinion shaft on a radially inner side thereof. In the inside of the pinion shaft, an internal lubricating oil path is formed which makes an inner wall of the lower hole communicate with an axial center portion of the outer peripheral surface of the pinion shaft on a radially outer side thereof. The lower hole is perforated in an oblique direction with respect to the axis line of the pinion shaft so that a bottom portion of the lower hole is positioned nearer to the end portion than an aperture portion of pinion shaft.Type: GrantFiled: June 26, 1997Date of Patent: July 27, 1999Assignee: Jatco CorporationInventors: Isamu Ohtake, Yuji Suzuki, Seiji Matsumoto
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Patent number: 5929839Abstract: An image display control apparatus which can achieve multicolor display for each font. It includes a first memory for storing red, green and blue pattern codes forming an image pattern, a second memory in which bitmap type image pattern data corresponding to the pattern codes have been stored, first, second and third buffers for temporarily storing the image pattern data, first, second and third serial output circuits for serially outputting data delivered from the first, second and third buffers, and a display control circuit for controlling such that the red, green and blue image pattern data are sequentially stored in the first, second and third buffers.Type: GrantFiled: December 30, 1996Date of Patent: July 27, 1999Assignee: Mitsubishi Denki Kabushiki KaishaInventor: Seiji Matsumoto
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Patent number: 5816107Abstract: A swinging base 12 is provided on top of a stationary base 11 such as to be capable of rotating by means of a bearing 13. A reduction gear 15 is provided in a depression portion 14 formed on the top surface of the stationary base 11. A motor 16 having a rotational shaft 17 connected to the reduction gear is provided on the swinging base. A cable support portion 21 which is rotatably supported by means of a bearing 18 provided on an axis A is provided inside the stationary base 11. The cable support portion 21 supports cables C. A through hole 23 is formed in the bottom of the swinging base 12. An arcuate aperture portion 24 is formed in the stationary base 11. The cables C are passed through the aperture portion 24 and the through hole 23. With this invention, cables which are installed in industrial robots can be supported without receiving excessive forces.Type: GrantFiled: November 18, 1996Date of Patent: October 6, 1998Assignee: Tokico Ltd.Inventors: Shingi Takahashi, Seiji Matsumoto
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Patent number: 5803900Abstract: A light source device for an endoscope provided with a noncircular opening which is capable of stabilizing the rate of change of the quantity of illuminating light with the quantity of movement of the stop blade and thereby preventing the hunting phenomenon of the stop blade in close-up or the like. The device comprises: a gate portion with a noncircular opening for linearly changing the quantity of light from the light source formed therein; a stop blade for controlling the quantity of light passing through the noncircular opening of the gate portion; and a motor for driving the stop blade. The noncircular opening has two V-shaped portions having different opening angles. The stop blade is provided with a circular auxiliary opening for passing part of the light therethrough.Type: GrantFiled: December 3, 1997Date of Patent: September 8, 1998Assignee: Fuji Photo Optical Co., Ltd.Inventors: Seiji Matsumoto, Etsuo Nakano, Suwao Satoh
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Patent number: 5712663Abstract: A character font generating apparatus comprising character ROM for storing font data of a character in a form of a plurality of horizontal lines each of which consists of a predetermined number of dots, a shift register with a data storing portion including the same number of flip-flops as the predetermined number, which stores data in parallel in response to a storing timing signal and outputs the stored data in serial in synchronization with a transfer clock signal, italic generation timing circuit for generating storing timing signals to be supplied to the shift register such that each of the storing timing signals is generated for each horizontal line of the font data stored in the character ROM on a different timing from timing of the other storing timing signals with respect to a time when a scan of a line is started, and display control circuit for controlling a data transfer from the character ROM to the shift register such that dot data of each horizontal line of a font data stored in the character RType: GrantFiled: May 15, 1995Date of Patent: January 27, 1998Assignee: Mitsubishi Denki Kabushiki KaishaInventor: Seiji Matsumoto
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Patent number: 5698633Abstract: A chloroprene rubber composition comprising the following polymers A and B in such a proportion that A is from 20 to 70 wt % and B is from 30 to 80 wt %:A: a chloroprene polymer obtained by polymerization of chloroprene containing from 0 to 50 wt % of a comonomer copolymerizable with chloroprene, said polymer having a number average molecular weight of from 500 to 20,000; and B: a chloroprene polymer obtained by polymerization of chloroprene containing from 0 to 50 wt % of a comonomer copolymerizable with chloroprene, whereby with a 0.1 wt % tetrahydrofuran solution of said polymer, the weight of the polymer permeated through a filter having a pore diameter of 0.50 .mu.m is less than 0.90 time of the weight of the polymer permeated through a filter having a pore diameter of 1.0 .mu.m.Type: GrantFiled: November 22, 1995Date of Patent: December 16, 1997Assignee: Tosoh CorporationInventors: Seiji Matsumoto, Tamotsu Sato
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Patent number: 5636515Abstract: A sealing structure in an exhaust system of an internal combustion engine includes a gasket which is clamped between a cylinder head and a flange fastened to the cylinder head and which has a sealing portion surrounding an exhaust port opening into a side of the cylinder head, and an exhaust pipe which is curved and coupled to the flange and which is in communication with the exhaust port. In this sealing structure, the sealing portion of the gasket is formed into an endless shape to surround said exhaust port, such that the distance between the sealing portion and a peripheral edge of the exhaust port, at least at a location substantially corresponding to a projected position of the exhaust pipe on the flange, is larger than the distance at other locations. Thus, it is possible to prevent or minimize the deterioration of the sealing portion of the gasket due to heat, while avoiding an increase in size of the section associated with the exhaust system.Type: GrantFiled: July 21, 1995Date of Patent: June 10, 1997Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Seiji Matsumoto, Junichi Nakade, Hiroaki Hishida
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Patent number: 5600949Abstract: An exhaust gas-purifying system for an internal combustion engine includes a catalyzer arranged in the exhaust system of the engine. The catalyzer is provided with a heater for heating the same. An ECU controls the operation of the heater. The ECU is responsive to operating conditions of the engine detected by engine operating parameter sensors, for restraining the operation of the heater.Type: GrantFiled: September 2, 1994Date of Patent: February 11, 1997Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Hiroaki Kato, Yuichi Shimasaki, Akihisa Saito, Takashi Komatsuda, Toshikazu Oketani, Seiji Hatcho, Seiji Matsumoto, Takuya Aoki, Yukio Miyashita
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Patent number: 5584177Abstract: An adsorber temperature-estimating device for an internal combustion engine comprises an adsorber arranged in the exhaust passage, for adsorbing an unburnt gas component present in exhaust gases emitted from the engine. Operating parameter sensors detect operating parameters of the engine, and an ECU estimates the temperature of the adsorber, based on the detected operating parameters. An exhaust gas-purifying system for the engine comprises the adsorber, a catalytic converter arranged in the exhaust passage at a location downstream of the adsorbing means, for purifying exhaust gases, and a secondary air supply pump for supplying secondary air to the exhaust passage at a location upstream of the catalytic converter. The ECU controls an amount of secondary air to be supplied to the exhaust passage, based on the estimated temperature calculated by the adsorber temperature-estimating device.Type: GrantFiled: December 28, 1994Date of Patent: December 17, 1996Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Toshikazu Oketani, Tetsu Teshirogi, Yuichi Shimasaki, Seiji Hatcho, Seiji Matsumoto, Takuya Aoki, Akihisa Saito, Takashi Komatsuda, Hiroaki Kato, Yukio Miyashita
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Patent number: 5555724Abstract: An adsorbing capacity determining apparatus is provided for determining the adsorbing capacity of an unburned component adsorbing device in an exhaust system for an internal combustion engine. The adsorbing capacity determining apparatus comprises upstream and downstream air-fuel ratio detectors, respectively coupled upstream and downstream from the unburned component adsorbing device, a temperature sensor for sensing the temperature of the unburned component adsorbing means and a computer for determining the adsorption capacity as a function of the outputs of the system and downstream air-fuel ratio detectors, when the temperature is within a predetermined range.Type: GrantFiled: January 25, 1995Date of Patent: September 17, 1996Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Seiji Hatcho, Yuichi Shimasaki, Takuya Aoki, Seiji Matsumoto, Hiroaki Kato, Takashi Komatsuda, Akihisa Saito, Toshikazu Oketani
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Patent number: 5544482Abstract: An exhaust gas-purifying system for an internal combustion engine has an adsorbing device arranged in an exhaust passage thereof for adsorbing or desorbing unburnt component contained in exhaust gases. An exhaust gas recirculation passage branches off from the exhaust passage at a branch point downstream of the adsorbing device and extending to an intake passage of the engine for returning exhaust gases flowing through the adsorbing device to the intake passage. The path of exhaust gases is changed to selectively introduce the exhaust gases containing the unburnt components into the exhaust gas recirculation passage. The adsorbing capacity of the adsorbing device is checked based on a manner of change in an air-fuel ratio of exhaust gases detected when the exhaust gases are introduced into the exhaust gas recirculation passage.Type: GrantFiled: March 16, 1995Date of Patent: August 13, 1996Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Seiji Matsumoto, Takuya Aoki, Yuichi Shimasaki, Seiji Hatcho, Toshikazu Oketani, Yukio Miyashita, Akihisa Saito, Takashi Komatsuda, Hiroaki Kato
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Patent number: 5512647Abstract: A copolymer rubber which consists essentially of (A) from 70 to 99 wt % of a cyano group-containing acrylate of the formula (I): ##STR1## wherein R.sup.1 is a C.sub.2-6 alkylene group or --CH.sub.2 CH.sub.2 OCH.sub.2 CH.sub.2 --,(B) from 1 to 30 wt % of an .alpha.,.beta.-unsaturated nitrile,(C) from 0 to 10 wt % of at least one monomer selected from the following monomers:a) an active halogen group-containing monomerb) an epoxy group-containing monomerc) a carboxyl group-containing monomerd) a diene compounde) a (meth)acrylate having an ethylenically unsaturated bond in its side chain, and(D) from 0 to 15 wt % of other ethylenically unsaturated monomer which is copolymerizable with each of the above components (A), (B) and (C), andwhich has a Mooney viscosity (ML.sub.1+4 (100.degree. C.)) of at least 5.Type: GrantFiled: May 31, 1994Date of Patent: April 30, 1996Assignee: Tosoh CorporationInventors: Shinji Ozoe, Seiji Matsumoto, Kazumi Furuta