Patents by Inventor Masaru Ishikawa
Masaru Ishikawa 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: 20010022562Abstract: An apparatus for displaying a stereoscopic two-dimensional picture includes a display unit having a flat image display screen for displaying a two-dimensional picture containing a stereoscopic image; and an image transmitting panel placed parallel to and apart from the image display screen. The image transmitting panel has a microlens array of a plurality of lenses and an effective area larger than that of the stereoscopic image contained in the two-dimensional picture, and a lens frame area surrounding a perimeter of the effective area of the microlens array. The image transmitting panel generates an image-formation plane for displaying a real image of the two-dimensional picture in a space located on an opposite side to the display unit with respect to the microlens array.Type: ApplicationFiled: March 8, 2001Publication date: September 20, 2001Inventor: Masaru Ishikawa
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Patent number: 6186022Abstract: There is provided a turn signal canceling mechanism 30 in which the types of the springs 42, 49 can be reduced and the production cost can be lowered.Type: GrantFiled: July 20, 1999Date of Patent: February 13, 2001Assignee: Kabushiki Kaisha Tokai Rika DenkiInventor: Masaru Ishikawa
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Patent number: 6080269Abstract: A gelatine recovery device feeds rod-like gelatine film pieces between a high-speed belt and low-speed belt, separates unified gelatine film into two parts by frictional contact and removes a mold release agent coating the film pieces which agent is then coated on the surface of the belts. Gelatine film pieces are recovered at the belt end and the mold release agent is removed from the belts by blades. After belt surface passes by the blades, the belt receives gelatine pieces and repeats the recovery process. In this gelatine recovery device, gelatine can be recovered without using a large quantity of water, and thus an effluent treatment system is unnecessary.Type: GrantFiled: May 6, 1998Date of Patent: June 27, 2000Inventors: Fumiaki Ohzeki, Masaru Ishikawa
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Patent number: 5657095Abstract: A system for combining images has VTRs for storing a plurality of image signals and a signal generator for generating a key signal representing a combining position in each of the image signals. The key signals are added to the image signals. The composed image signals are combined with each other at the combining position based on the key signals.Type: GrantFiled: March 19, 1996Date of Patent: August 12, 1997Assignee: Pioneer Electronic CorporationInventors: Masayoshi Yoshida, Masaru Ishikawa
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Patent number: 5302699Abstract: Disclosed is an antitumorigenic protein derived from fruit bodies of matsutake mushrooms (Tricholoma matsutake). Also disclosed is a method of preparing the antitumorigenic protein comprising extracting fruit bodies of matsutake mushrooms with water followed by subjecting the resulting extract to purification composed of combination of the following three purifying steps in any desired order:(1) a step of purifying the protein by molecular sieve chromatography in a gel permeation column;(2) a step of bringing the extract in contact with an anion exchange resin so that the protein is adsorbed to the resin followed by eluting the protein from the column of the resin with an eluent; and(3) a step of bringing the extract in contact with a hydrophobic chromatographic resin so that the protein is adsorbed to the resin followed by eluting the protein from the column of the resin with an eluent.Type: GrantFiled: January 22, 1993Date of Patent: April 12, 1994Assignees: Director of National Food Research Institute, Ministry of Agriculture, Forestry and Fisheries, Momoya Co., Ltd.Inventors: Yukio Kawamura, Akihiro Morita, Makoto Tomatsu, Masaru Ishikawa
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Patent number: 5225753Abstract: In an electric control apparatus for a four-wheel steering system including an electric motor the rotary angle of which is electrically controlled in accordance with a target steering angle of rear road wheels, and a hydro-mechanical tracer mechanism having a fluid control valve the valve element of which is drivingly connected to the electric motor to be displaced in proportion to the rotary angle of the electric motor, the tracer mechanism being arranged to steer the rear road wheels in proportion to a displacement amount of the valve element, the target steering angle is converted into a control value for rotation of the electric motor, and a drive signal indicative of the control value is applied to the electric motor.Type: GrantFiled: July 29, 1991Date of Patent: July 6, 1993Assignee: Toyota Jidosha Kabushiki KaishaInventors: Shin Koike, Osamu Takeda, Hiroaki Tanaka, Mizuho Sugiyama, Kaoru Ohashi, Hitoshi Iwata, Masaru Ishikawa
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Patent number: 5212642Abstract: An electric control apparatus for a four-wheel steering system is designed to calculate a rear wheel steering angle on a basis of a control rule corresponding with a steering mode selected from a plurality of rear wheel steering modes thereby to steer a set of dirigible rear road wheels at the calculated steering angle. The electric control apparatus is further designed to calculate a difference between new and old steering angles calculated when the selected steering mode has been changed to another one of the steering modes and immediately after change of the selected steering mode, to gradually decreasing an absolute value of the calculated difference at a predetermined time interval, to correct the new steering angle in accordance with the absolute value of the calculated difference until the absolute value becomes zero after change of the selected steering mode and to control an actual steering angle of the rear road wheels in accordance with the corrected new steering angle.Type: GrantFiled: July 22, 1991Date of Patent: May 18, 1993Assignee: Toyota Jidosha Kabushiki KaishaInventors: Hiroaki Tanaka, Osamu Takeda, Kaoru Ohashi, Mizuho Sugiyama, Shin Koike, Hitoshi Iwata, Masaru Ishikawa, Hideki Kusunoki
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Patent number: 5067198Abstract: A wiper pivot is provided with a pivot arm, a pivot shaft having a spherical convex part, and a pivot holder having a spherical concave part. The pivot shaft is supported rotatably by the pivot holder through the spherical connection, and an opening of the pivot holder is closed with a waterproof member made from elastic material. In this wiper pivot, it is possible to prevent the pivot shaft from rattling and prevent the pivot holder from the penetration of water.Type: GrantFiled: November 9, 1989Date of Patent: November 26, 1991Assignee: Jidosha Denki Kogyo K.K.Inventors: Masaru Ishikawa, Yuichi Ito
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Patent number: 4902157Abstract: A sealing structure for a ball joint of a wiper link mechanism is provided with a boot. A boot-engaging part is formed on an outer periphery adjacent an opening of said ball retainer and a retainer-engaging part is formed at the end of the boot which includes a flexible part. The boot can seal the opening of the ball retainer in the limited space between the plate-shaped link arm and the plate-shaped link connecting rod in the state in which the ball pin is coupled to the ball retainer. It is able to prevent water, mud or the like from entering into the spherical hollow of the ball retainer even if the link arm and the link connected rod are inclined to each other.Type: GrantFiled: September 18, 1987Date of Patent: February 20, 1990Assignee: Jidosha Denki Kogyo Kabushiki KaishaInventors: Masaru Ishikawa, Yuichi Itoh
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Patent number: 4890037Abstract: The present invention utilizes a dimmer switch for alternating the lighting direction of a vehicle headlamp, but does so utilizing control apparatus that ensures that only low beam-directed light is emitted by the headlamp when the headlamp is turned ON. The possiblity which might be presented if oncoming traffic is suddenly met with high beam-directed light when an automobile driver turns his headlamps ON is thereby averted.Type: GrantFiled: December 5, 1988Date of Patent: December 26, 1989Assignees: Toyota Jidosha Kabushiki Kaisha, Kabushiki Kaisha Tokai Rika Denki SeisakushoInventors: Minoru Izawa, Tadanao Hamamoto, Masaru Ishikawa, Harumi Dohke, Tasuku Nakano
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Patent number: 4843898Abstract: A wiper linkage of the cross arm type is provided with a driving rod, an oscillation arm, two cross arms interlinking the driving rod and the oscillation arm, and restrictive alignment-free couplings connecting the cross arms between the driving rod and oscillation arm. In this linkage, it is possible to connect the coupling parts easily and to absorb dimensional errors in the coupling parts, and to also make the coupling waterproof by a sealing member. Furthermore, a smooth and noiseless action of the linkage can be obtained.Type: GrantFiled: March 16, 1988Date of Patent: July 4, 1989Assignee: Jidosha Denki Kogyo Kabushiki KaishaInventor: Masaru Ishikawa
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Patent number: 4831548Abstract: Disclosed is a teaching apparatus for a robot comprising a graphic display capable of displaying characters, symbols, and figures, a pointing device capable of indicating any point on the display screen, a storage for storing character, symbol, and graphic information, and an arithmetic and logic unit for taking in three dimensional data and data of hand coordinates system stored in the storage, calculating a conversion matrix t.sub.v for conversion to data of hand coordinates system and a conversion matrix T.sub.p for projection to the hand coordinates system, converting three dimensional data to two dimensional data according to the thus calculated conversion matrices T.sub.v and T.sub.p, and allowing a display of surroundings viewed from a view point of the robot in motion or at rest to be made on the graphic display.Type: GrantFiled: October 23, 1986Date of Patent: May 16, 1989Assignee: Hitachi, Ltd.Inventors: Hideaki Matoba, Shunji Mohri, Masaru Ishikawa
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Patent number: 4727529Abstract: A pickup unit for use in an optical information record/reproduce system comprising a plurality of optical elements including a light-emitting device and an objective lens by which the light issuing from the light-emitting device is focused as a beam spot on the recording surface of a recording medium, a retaining mechanism that holds the plurality of optical elements and which is movable in a direction parallel to the recording surface, and a tilt servo mechanism for causing the optical axis of the beam spot to intersect the recording surface at right angles. The tilt servo mechanism includes a sensor for detecting the angle of inclination of the optical axis in relation to the recording surface. The sensor has a sensor stay as an integral part thereof. The sensor stay is provided as an integral part of the retaining mechanism and is movable with respect to the recording surface.Type: GrantFiled: March 18, 1986Date of Patent: February 23, 1988Assignee: Pioneer Electronic CorporationInventors: Yoshitsugu Araki, Yoshihisa Ito, Masaru Ishikawa, Hideyuki Takeuchi
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Patent number: 4593931Abstract: This height adjustment system includes: a source of pressurized working fluid; several fluid pressure actuated wheel suspension units, each of which resiliently pushes a one of the wheels of the vehicle downwards with respect to the body thereof, according to the amount of pressurized working fluid supplied to it; a passage means for conducting supply of working fluid from the source to the wheel suspension units; several valve means, provided at intermediate points of the passage means, for controlling flow of working fluid therethrough; and a flow divider means which has an inlet and two outlets, one of the outlets being communicated to a first set of the wheel suspension units for a first set of the wheels of the vehicle and the other of the outlets being communicated to a second disjoint set of the wheel suspension units for a second disjoint set of the wheels of the vehicle.Type: GrantFiled: October 12, 1984Date of Patent: June 10, 1986Assignee: Toyota Jidosha Kabushiki KaishaInventors: Harunori Shiratori, Masaru Ishikawa, Hisami Kato
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Patent number: 4450894Abstract: A method for horizontal type continuous casting, which comprises: withdrawing a cast strand from a mold provided horizontally at the lower part of a tundish at a prescribed withdrawing speed for a prescribed period of withdrawing time; then, pushing back said cast strand for a prescribed period of pushback time in the direction opposite to the direction of withdrawal; and, withdrawing said cast strand again from said mold at said prescribed withdrawing speed for said prescribed period of withdrawing time; repeating said withdrawal and said pushing back, the distance of said withdrawal being longer than that of said pushing back; thereby intermittently withdrawing said cast strand from said mold; said method being characterized by comprising: limiting said prescribed withdrawing speed within the range of from 1.0 to 10.0 m/minute; limiting said prescribed period of withdrawing time within the range of from 0.05 to 1.5 second; and, limiting said prescribed period of pushback time within the range of from 0.Type: GrantFiled: June 13, 1983Date of Patent: May 29, 1984Assignee: Nippon Kokan Kabushiki KaishaInventors: Kiyomi Taguchi, Masayuki Hanmyo, Masaru Ishikawa
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Patent number: 4412008Abstract: A composite sinter of silicon nitride/boron nitride, which consists essentially of, in weight percentage, silicon nitride within the range of from 60 to 97% and boron nitride within the range of from 3 to 40%, and wherein said boron nitride is present as a dispersed phase in the network of said silicon nitride; said composite sinter of silicon nitride/boron nitride being manufactured by the steps of: kneading a silicon powder within the range of from 47.3 to 95.1 wt.% and a boron nitride powder within the range of from 4.9 to 52.7 wt. %, as raw materials, with the use of an organic solvent solution containing a dispersant and a binder; press-forming the resultant kneaded mixture to prepare a green compact; sintering said green compact in a non-oxidizing atmosphere at a temperature within the range of from 1,100.degree. to 1,300.degree. C.Type: GrantFiled: February 11, 1981Date of Patent: October 25, 1983Assignees: Nippon Kokan Kabushiki Kaisha, Shinagawa Shiroenga Kabushiki KaishaInventors: Akira Miyamoto, Masaru Ishikawa, Masaaki Nishi, Kenki Ishizawa, Akira Shiranita
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Patent number: 4377347Abstract: A method for measuring the temperature of molten metal received in a vessel, which includes covering the tip portion of a probe which includes a thermocouple housed in an alumina protecting tube, from inside to outside with a ceramic fiber and a quartz glass; attaching the covered probe to the side wall of a vessel so that the tip portion of said probe projects into said vessel, at a position below the allowable lowest level of the molten metal received in said vessel; and maintaining the level of the molten metal at or above the allowable lowest level, thereby always immersing said probe into the molten metal received in said vessel.Type: GrantFiled: June 16, 1980Date of Patent: March 22, 1983Assignee: Nippon Kokan Kabushiki KaishaInventors: Masayuki Hanmyo, Masaru Ishikawa, Seishi Mizuoka
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Patent number: 4340110Abstract: An apparatus for connecting a tundish and a mold for horizontal continuous casting of a metal, which comprises: a break ring fitted to the inlet opening of a water-cooled mold through a joint material; a front nozzle engaged in the molten metal outlet of the side wall of a tundish; a feed nozzle provided between said break ring and said front nozzle so that one end thereof is in contact with said break ring and the other end thereof is in contact with said front nozzle through respective joint materials; and, a connecting mechanism for connecting said tundish and said water-cooled mold, said connecting mechanism having an elasticity means which pushes said break ring elastically against the inlet opening of said water-cooled mold, one end of said feed nozzle against said break ring, and the other end of said feed nozzle against said front nozzle.Type: GrantFiled: June 18, 1980Date of Patent: July 20, 1982Assignee: Nippon Kokan Kabushiki KaishaInventors: Akira Honda, Masaru Ishikawa, Seishi Mizuoka, Katsunori Ono
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Patent number: 4298147Abstract: A discharging mechanism for molten metal and slag remaining in a tundish provided with at least one pouring nozzle for a continuous casting machine, which comprises: a discharging nozzle attached to the bottom wall of the tundish, the nozzle having a discharging bore flaring downwardly for discharging molten metal and slag remaining in the tundish; a frustoconical plug matching with the discharging bore of the discharging nozzle, releasably inserted from outside the bottom wall of the tundish into the discharging bore, a plug fitting being fixed to the lower end of the plug; and a plug engaging means connected with the plug fitting for inserting the plug into the discharging bore of the discharging nozzle, holding same therein and withdrawing same therefrom.Type: GrantFiled: July 26, 1979Date of Patent: November 3, 1981Assignee: Nippon Kokan Kabushiki KaishaInventors: Akira Honda, Takanori Anzai, Minoru Kitamura, Masaru Ishikawa, Seishi Mizuoka
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Patent number: 4286647Abstract: An apparatus for preventing a steam explosion, in a water discharge channel of a secondary cooling zone of a horizontal type continuous casting machine, caused by molten metal breaking out from said cast strand, which comprises: a metal net provided substantially horizontally between said secondary cooling zone and said water discharge channel for granulating said molten metal breaking out from said cast strand; a water flashing mechanism provided over the entire width of said water discharge channel above said water discharge channel, said water flashing mechanism comprising a plurality of water injection ports ejecting water on said molten metal granulated through said metal net for rapidly cooling and solidifying said molten metal and washing away the resultant soldified granulated metal toward the downstream of said water discharge channel; a tank, provided at the downstream end of said water discharge channel for receiving the water and the granulated metal discharged from said water discharge channel anType: GrantFiled: June 18, 1980Date of Patent: September 1, 1981Assignee: Nippon Kokan Kabushiki KaishaInventors: Akira Honda, Kiyomi Taguchi, Masayuki Hanmyo, Masaru Ishikawa, Minoru Kitamura