Patents by Inventor Junichi Nakaho
Junichi Nakaho 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: 20040095088Abstract: The present invention provides a mirror device motor control circuit that can reliably stop a mirror at predetermined positions with a simple configuration. In the control circuit of the invention, part of a lock current flowing to the motor flows to a base terminal of a transistor. Thus, as long as a voltage corresponding to the lock current is equal to or greater than a specific value, this voltage is applied to the base terminal of the transistor, whereby between a collector terminal and an emitter terminal becomes conductive, and the current flowing to a gate of a MOSFET is grounded via the collector terminal and the emitter terminal of the transistor. For this reason, when the lock current flows, conduction between a drain terminal and a base terminal of the MOSFET is released and a drive current of the motor is cut off.Type: ApplicationFiled: August 27, 2003Publication date: May 20, 2004Applicant: KABUSHIKI KAISHA TOKAI-RIKA-DENKI SEISAKUSHOInventor: Junichi Nakaho
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Publication number: 20040075920Abstract: In a reflecting mirror, a hydrogen storing metal or a hydrogen storing alloy is used in an electrically conductive reflecting film. When a predetermined voltage is applied from an electrically conductive reflecting film side to a transparent electrode, hydrogen stored at the electrically conductive reflecting film is released and becomes hydrogen ions, and the hydrogen ions move toward the transparent electrode. When the hydrogen ions reach a reduction coloring film between the transparent electrode and the electrically conductive reflecting film, the hydrogen ions bond with an oxide of tungsten which forms the reduction coloring film, and the reduction coloring film is thereby colored. In accordance with this structure, it is possible to do away with an oxidation coloring film.Type: ApplicationFiled: September 17, 2003Publication date: April 22, 2004Applicant: KABUSHIKI KAISHA TOKAI-RIKA-DENKI-SEISAKUSHOInventor: Junichi Nakaho
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Patent number: 6616286Abstract: In a vehicle door mirror device, a bracket is divided into a frame and a case member. Thus, the frame and the like for a vehicle right side and for a vehicle left side can both hold a mirror at a vehicle rear side thereof. A mounting hole and a supporting hole of a case member are provided to be symmetrical with respect to a vertical plane which passes through a widthwise direction center of the case member. Thus, even if a common case member is used both for a vehicle right side and for a vehicle left side by left and right sides of the case member being reversed, the mounting hole of the case member can be mounted to the frame and the like for the vehicle right side and the vehicle left side.Type: GrantFiled: August 14, 2002Date of Patent: September 9, 2003Assignee: Kabushiki Kaisha Tokai-Rika-Denki-SeisakushoInventors: Kenichi Hayashi, Junichi Nakaho, Morihiko Ogasawara, Takashi Yamada
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Patent number: 6556350Abstract: The present invention relates to a half mirror which transmits light from the back of a mirror body. The half mirror comprises a substrate that at least transmits light having predetermined wavelengths; a reflecting film, comprising substantially silicon of a thickness of 20 to 45 nm and being integrally formed on a surface of the substrate, for reflecting light that is made incident upon the reflecting film from the substrate side thereof and transmitting, toward the substrate side of the reflecting film at a fixed ratio, light made incident upon the reflecting film from the side opposite to the substrate side; and a protective film, which is made of a translucent material that at least transmits light having particular wavelengths, formed on the surface of the reflecting film opposite to the surface on which the substrate is formed.Type: GrantFiled: October 2, 2001Date of Patent: April 29, 2003Inventors: Junichi Nakaho, Masao Ayabe, Noriyuki Takai, Hiroshi Yoshida
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Patent number: 6552653Abstract: In order to provide a communication system for a vehicle and an vehicle accessory operation system that utilizes the communication system for a vehicle which can achieve lower cost and non-wire harness structure as long as possible, there is provided a communication system for a vehicle, the communication system comprising an inner view mirror provided with a first infrared ray projecting and receiving section that is capable of at least one of projecting and receiving an infrared ray, and at least one vehicle accessory other than the inner view mirror, which vehicle accessory is provided with a second infrared ray projecting and receiving section that is capable of at least one of projecting and receiving an infrared ray and that is disposed so as to communicate with the inner view.Type: GrantFiled: March 26, 2001Date of Patent: April 22, 2003Assignee: Kabushiki Kaisha Tokai-Rika-Denki-SeisakushoInventors: Junichi Nakaho, Takashi Ichikawa
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Publication number: 20030058554Abstract: In a vehicle door mirror device, a bracket is divided into a frame and a case member. Thus, the frame and the like for a vehicle right side and for a vehicle left side can both hold a mirror at a vehicle rear side thereof. A mounting hole and a supporting hole of a case member are provided to be symmetrical with respect to a vertical plane which passes through a widthwise direction center of the case member. Thus, even if a common case member is used both for a vehicle right side and for a vehicle left side by left and right sides of the case member being reversed, the mounting hole of the case member can be mounted to the frame and the like for the vehicle right side and the vehicle left side.Type: ApplicationFiled: August 14, 2002Publication date: March 27, 2003Applicant: KABUSHIKI KAISHA TOKAI-RIKA-DENKI-SEISAKUSHOInventors: Kenichi Hayashi, Junichi Nakaho, Morihiko Ogasawara, Takashi Yamada
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Patent number: 6480335Abstract: A reflecting mirror is obtained which prevents double images from being formed and provides sufficient the hydrophilic property. The hydrophilic coating is approximately 15 nm in thickness and the photocatalytic coating between the hydrophilic coating and the glass substrate is approximately 240 nm in thickness. This setting of dimensions reduces the surface optical reflectance of light having a wavelength ranging from approximately 550 nm to 580 nm. This also reduces the deterioration of the photocatalytic action caused by the diffusion of sodium ions contained in the glass substrate into the photocatalytic coating. Furthermore, the aforementioned setting of dimensions turns the color of surface reflected light to whitish. Even when images formed by the surface reflected light or images formed by reflected light from the reflecting film interfered by surface reflected light are viewed, the after-image thereof hardly remains.Type: GrantFiled: January 18, 2000Date of Patent: November 12, 2002Assignee: Kabushiki Kaisha Tokai-Rika-Denki-SeisakushoInventors: Junichi Nakaho, Noriyuki Takai, Hiroshi Yoshida
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Patent number: 6447129Abstract: In a vehicle door mirror device, a bracket is divided into a frame and a case member. Thus, the frame and the like for a vehicle right side and for a vehicle left side can both hold a mirror at a vehicle rear side thereof. A mounting hole and a supporting hole of a case member are provided to be symmetrical with respect to a vertical plane which passes through a widthwise direction center of the case member. Thus, even if a common case member is used both for a vehicle right side and for a vehicle left side by left and right sides of the case member being reversed, the mounting hole of the case member can be mounted to the frame and the like for the vehicle right side and the vehicle left side.Type: GrantFiled: April 23, 2001Date of Patent: September 10, 2002Assignee: Kabushiki Kaisha Tokai-Rika-Denki-SeisakushoInventors: Kenichi Hayashi, Junichi Nakaho, Morihiko Ogasawara, Takashi Yamada
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Patent number: 6412960Abstract: A mirror surface angle detector which can be used in common with a mirror surface angle adjusting device of a mirror. The mirror surface angle of the mirror is adjusted by oscillation of the mirror by the mirror surface angle adjusting device. The mirror surface angle detector for detecting the mirror surface angle of the mirror is provided separately from the mirror surface angle adjusting device, and is incorporated into the mirror surface angle adjusting device such that engagement claws provided at the mirror surface angle detector engage with engagement holes provided at the mirror surface angle adjusting device. When the mirror surface angle detector is removed from the mirror surface angle adjusting device, the mirror surface angle adjusting device can also be used in a type of vehicle which does not have a mirror surface angle detector in the mirror surface angle adjusting device. Therefore, vehicles of different types can make common use of the mirror surface angle adjusting device.Type: GrantFiled: September 11, 2000Date of Patent: July 2, 2002Assignee: Kabushiki Kaisha Tokai-Rika-Denki-SeisakushoInventors: Shigeki Yoshida, Masato Sakamoto, Junichi Nakaho, Morihiko Ogasawara
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Publication number: 20020039243Abstract: The present invention relates to a half mirror which transmits light from the back of a mirror body. The half mirror comprises a substrate that at least transmits light having predetermined wavelengths; a reflecting film, comprising substantially silicon of a thickness of 20 to 45 nm and being integrally formed on a surface of the substrate, for reflecting light that is made incident upon the reflecting film from the substrate side thereof and transmitting, toward the substrate side of the reflecting film at a fixed ratio, light made incident upon the reflecting film from the side opposite to the substrate side; and a protective film, which is made of a translucent material that at least transmits light having particular wavelengths, formed on the surface of the reflecting film opposite to the surface on which the substrate is formed.Type: ApplicationFiled: October 2, 2001Publication date: April 4, 2002Inventors: Junichi Nakaho, Masao Ayabe, Noriyuki Takai, Hiroshi Yoshida
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Patent number: 6337624Abstract: A rear view mirror having a first portion and a second portion. The reflectance of the first portion is variably controlled. The reflectance of the second portion is also variably controlled, though independently from the first portion.Type: GrantFiled: May 28, 1999Date of Patent: January 8, 2002Assignee: Kabushiki Kaisha Tokai Rika Denki SeisakushoInventors: Junichi Nakaho, Koichi Ono
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Publication number: 20010033439Abstract: In a vehicle door mirror device, a bracket is divided into a frame and a case member. Thus, the frame and the like for a vehicle right side and for a vehicle left side can both hold a mirror at a vehicle rear side thereof. A mounting hole and a supporting hole of a case member are provided to be symmetrical with respect to a vertical plane which passes through a widthwise direction center of the case member. Thus, even if a common case member is used both for a vehicle right side and for a vehicle left side by left and right sides of the case member being reversed, the mounting hole of the case member can be mounted to the frame and the like for the vehicle right side and the vehicle left side.Type: ApplicationFiled: April 23, 2001Publication date: October 25, 2001Inventors: Kenichi Hayashi, Junichi Nakaho, Morihiko Ogasawara, Takashi Yamada
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Publication number: 20010026215Abstract: In order to provide a communication system for a vehicle and an vehicle accessory operation system that utilizes the communication system for a vehicle which can achieve lower cost and non-wire harness structure as long as possible, there is provided a communication system for a vehicle, the communication system comprising an inner view mirror provided with a first infrared ray projecting and receiving section that is capable of at least one of projecting and receiving an infrared ray, and at least one vehicle accessory other than the inner view mirror, which vehicle accessory is provided with a second infrared ray projecting and receiving section that is capable of at least one of projecting and receiving an infrared ray and that is disposed so as to communicate with the inner view.Type: ApplicationFiled: March 26, 2001Publication date: October 4, 2001Inventors: Junichi Nakaho, Takashi Ichikawa
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Patent number: 5855072Abstract: In a steering wheel rotational angle detecting apparatus, an engaging pin protrudes radially from a projected part of one of a steering wheel and an annular rotating member and includes a spherical portion. An engaging groove is formed at a position on the other of the steering wheel and the annular rotating member of a rotational angle detector corresponding to the position of the engaging pin. The engaging groove is configured to receive and hold the spherical portion of the engaging pin on two sides while allowing the spherical portion to move within the engaging groove. When the steering wheel is turned, the engaging pin or groove immediately transmits torque to the engaging groove or pin, respectively, thus enabling the rotational angle detector to detect rotational angle with high precision in either of the rotational directions of the steering wheel.Type: GrantFiled: March 4, 1997Date of Patent: January 5, 1999Assignee: Kabushiki Kaisha Tokai-Rika-Denki-SeisakushoInventor: Junichi Nakaho
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Patent number: 5686911Abstract: A contact type rotary encoder, comprising a printed wiring board having annular comb-shaped electrodes, and an arcuate electrode printed thereon, and a rotary member having three through-holes positioned around the center thereof at substantially equal angular intervals, and at different distances from the center of the rotary member. The contact type rotary encoder further comprises electrically conductive balls rotatably fitted in the through-holes and positioned to roll on the electrodes.Type: GrantFiled: June 15, 1995Date of Patent: November 11, 1997Assignee: Kabushiki Kaisha Tokai Rika Denki SeisakushoInventor: Junichi Nakaho
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Patent number: 5276323Abstract: A movement detector includes a moving body having a slit pattern which is provided on it by forming a number of slit-shaped light transmitting parts at certain intervals in the direction of movement. As the moving body is moved, depending on the presence and absence of the light transmitting parts of the slit pattern, light images and dark images appear alternately on the light receiving surface of a semiconductor position detecting element while moving in one direction. In response to the light and dark images, the semiconductor position detecting element provides output currents, which detecting means utilizes to provide output pulses. The output pulses are utilized to detect not only the amount of movement of the moving body but also the direction of movement of the latter.Type: GrantFiled: June 12, 1992Date of Patent: January 4, 1994Assignee: Kabushiki Kaisha Tokai Rika Denki SeisakushoInventor: Junichi Nakaho
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Patent number: 5272335Abstract: An object of this invention is to provide a position detecting apparatus which can accurately detect an angle of rotation of a rotary board mounted on a rotary shaft even if the former is not coaxial with the latter, or there is a play between the rotary shaft and its bearing. In a position detecting apparatus, a detecting transparent slit is formed in it in such a manner that the distance between the slit and the center of rotation of the rotary board changes with the angle of rotation .theta. of the rotary board, and a reference transparent slit having a predetermined radius is also formed in it. LEDs are arranged on one side of the rotary board, and PSDs are arranged on the other side of the rotary board in such a manner the formers are confronted through the transparent slits with the PSDs, respectively. The PSDs detect light beams passed through the transparent slits, to output light reception signals.Type: GrantFiled: September 9, 1992Date of Patent: December 21, 1993Assignee: Kabushiki Kaisha Tokai Rika Denki SeisakushoInventor: Junichi Nakaho
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Patent number: 5165302Abstract: A steering apparatus with a fixed pad operated by a driver of a vehicle includes spokes one end of which extend in a tapered manner from a steering shaft and to the other end of which an annular steering operation portion is secured; and a fixed pad accommodated in a tapered space formed by the spokes, wherein an interval between opposing surfaces of the spokes and the fixed pad is set to be substantially uniform, so as to prevent a foreign object from being caught between the opposing surfaces when the steering operation portion is operated.Type: GrantFiled: December 19, 1991Date of Patent: November 24, 1992Assignee: Kabushiki Kaisha Tokai-Rika-Denki-SeisakushoInventors: Hiroki Iwasa, Chikao Nagasaka, Masuyuki Ueda, Shigeru Kato, Hisashi Aoki, Makoto Shibahara, Satoshi Mori, Junichi Nakaho
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Patent number: 4693558Abstract: A rear view mirror assembly comprising a liquid crystal cell of guest-host type which consists of a layer of dichroic dyestuff added nematic liquid crystal and a pair of transparent plates sandwiching the liquid crystal therebetween. A transparent electrode is formed on the inside surface of each plate by means of conductive coating. A quarter wave phase difference filter is mounted on the backside of one of the plates. A flat mirror is mounted on the backside of the quarter wave phase difference filter. A photo-sensitive means receives light passing through the liquid crystal cell and an optical polarization filter in turn and produces a photo-detector signal. A control circuit controls voltage applied to the electrodes of liquid crystal cell so that the magnitude of photo-detector signal may become equal to the predetermined level. The predetermined level is changeable in accordance with the magnitude of detector signal produced by another photo-sensitive means for detecting circumjacent light.Type: GrantFiled: March 20, 1985Date of Patent: September 15, 1987Assignee: Kabushiki Kaisha Tokai Rika Denki SeisakushoInventors: Junichi Nakaho, Shigeru Kato, Makoto Shibahara
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Patent number: 4603946Abstract: A reflection controllable view mirror device having an electro-optical assembly which changes its optical transmittance to vary quantity of light passing therethrough in accordance with the magnitude of the applied voltage, a control circuit to control the transmittance at a value so as to ensure predetermined uniform reflection under circumstances permitting transmittance to deviate from inherent one because of deterioration or the like. Another control circuit is provided to control to ensure the inherent transmittance for predetermined reflection under the same circumstances.Type: GrantFiled: September 22, 1983Date of Patent: August 5, 1986Assignee: Kabushiki Kaisha Tokai Rika Denki SeisakushoInventors: Shigeru Kato, Junichi Nakaho, Makoto Shibahara