Patents Assigned to Murakami Corporation
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Patent number: 7320534Abstract: Disclosed is a display device at a low cost which enhances the color purity of light to be projected, and which resists deterioration due to ambient light such as infrared ray. This display device includes an LED, an optical member for selectively outputting light components, of which wavelength is a predetermined minimum-limit wavelength or longer, from incident light, and a mirror for selectively reflecting light components, of which wavelength is a predetermined maximum-limit wavelength or shorter, from irradiated light. One of the optical member or the mirror receives light directly from the LED, and outputs it to the other. Subsequently, the other receives the light from one of the optical member and the mirror, and outputs it.Type: GrantFiled: June 10, 2005Date of Patent: January 22, 2008Assignees: Murakami Corporation, Nippon Seiki Co., Ltd.Inventors: Tomohiko Sugikawa, Keiichi Nagano, Yuichi Takahashi, Teruko Yokoo
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Patent number: 7320527Abstract: A vehicle mirror comprises: a mirror surface; an actuator 100 which tilts the mirror surface; a plate pivot 110, which changes its direction together with the mirror surface; a spring 112, which applies a resilient force to the plate pivot 110 in the direction substantially vertical to the mirror surface; a guide spring 114 which is fitted to the end of the spring 112 at the side far from the interlocking member; a semiconductor pressure sensor 116, which is in contact with the guide spring at substantially one point so as to detect a load loaded on the one point from the pressing member; and a signal outputting portion which outputs a signal depending upon the tilted angle of the mirror surface based on the force detected by the semiconductor pressure sensor 116.Type: GrantFiled: September 27, 2005Date of Patent: January 22, 2008Assignee: Murakami CorporationInventors: Ayako Yamada, Hidenori Sato
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Publication number: 20080013178Abstract: To provide a dielectric multilayer filter, such as a red-reflective dichroic filter, that has a reduced incident-angle dependency. A dielectric multilayer film 30 is formed on a front surface of a transparent substrate 28 to form a dielectric multilayer filter 26. The dielectric multilayer film 30 is composed of films 34 of a intermediate-refractive-index material and films 36 of a high-refractive-index material alternately stacked one on another. The intermediate-refractive-index material forming the films 34 has a refractive index higher than 1.52 and equal to or lower than 2.1. The high-refractive-index material forming the films 36 has a refractive index equal to or higher than 2.0 and higher than the refractive index of the intermediate-refractive-index material forming the films 34.Type: ApplicationFiled: May 14, 2007Publication date: January 17, 2008Applicant: MURAKAMI CORPORATIONInventor: Yoshiyuki Terada
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Publication number: 20070273764Abstract: To provide a vehicle monitor apparatus capable of acquiring more information through effective utilization of an image taking region of a camera on the occasion of taking interior and exterior images of a vehicle with the camera. A vehicle monitor apparatus 1 is provided with a drive recorder 11 and a reflecting mirror 12. The drive recorder 11 is provided with a camera 14 and the camera 14 is arranged to take a forward image of the vehicle 2. In an image taking region of the camera 14, the reflecting mirror 12 is located in a range where a hood 23 should be imaged if the reflecting mirror 12 were excluded, and the camera 14 takes an image of an exterior situation outside the vehicle viewed through a windshield 22, and an image projected by the reflecting mirror 12.Type: ApplicationFiled: April 16, 2007Publication date: November 29, 2007Applicant: MURAKAMI CORPORATIONInventors: Ayako Yamada, Hidenori Sato
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Publication number: 20070247713Abstract: A colored anti-fog mirror that emits reflected light in response to incident light, the colored anti-fog mirror comprising a substrate, a hydrophilic functional layer containing a photocatalytic substance, and a metallic reflecting film provided between the substrate and the hydrophilic functional layer, wherein a material of the metallic reflecting film and a thickness of the hydrophilic functional layer are set such that the reflected light has a spectral reflection spectrum having a maximum reflectance in the visible region over 510 nm and not more than 600 nm.Type: ApplicationFiled: April 2, 2007Publication date: October 25, 2007Applicant: MURAKAMI CORPORATIONInventors: Hideyuki Kikuchi, Masatoshi Nakamura
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Publication number: 20070242373Abstract: A retractable door mirror to prevent wind noise during running of an automobile and achieving a simplified form of a base plate having a function as a stopper for regulating a retractable angle of a mirror body, thereby reducing production cost. The retractable door mirror has a mirror base and a mirror body rotatable relative to the mirror base. The mirror base includes a base plate in which stoppers for regulating retractable angles of the mirror body are attached to a plate body. The plate body in the base plate is located on the lower side of the mirror base, and the stoppers are arranged to penetrate the mirror base from the lower side of the mirror base and project to the upper side of the mirror base.Type: ApplicationFiled: October 1, 2004Publication date: October 18, 2007Applicant: MURAKAMI CORPORATIONInventor: Kazunari Yamauchi
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Patent number: 7282877Abstract: The present invention provides a DC brush motor rotation amount detection method comprising the steps of: counting pulses generated by switching of brushes when a DC brush motor rotates; removing any noise pulse generated during a pulse rejection period which is shorter than a pulse interval and which is started when each pulse is generated; counting pulses generated during pulse acceptance periods outside the pulse rejection periods; and detecting a rotation amount of the DC brush motor, wherein the pulse rejection period during steady-state operation of the DC brush motor is ended when a predetermined time elapses from a start point of the pulse rejection period, where the predetermined time is calculated by multiplying a pulse interval of a corresponding pulse zone one rotation before a pulse zone to which the pulse rejection period belongs by a coefficient K(½<K<1).Type: GrantFiled: November 16, 2005Date of Patent: October 16, 2007Assignee: Murakami CorporationInventors: Noriyuki Takemasa, Ayako Yamada, Hiromi Iwasaki, Norihiro Suzuki
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Publication number: 20070228247Abstract: An objective is to provide a vehicle interior accessory retainer capable of securely retaining an accessory, resistant to deterioration with age and by heat, and capable of preventing reduction in a retaining load. A vehicle interior accessory retainer H is comprised of a base 1, and a base inner 3, and the base inner 3 is provided with a plate spring 2. The plate spring 2 is provided with a planar portion 21 arranged along a bottom plate 35 in the base inner 3, upright portions 22, 23 formed as standing upright from both sides of the planar portion 21 and arranged along side walls 33, 34 in the base inner 3, and base-retaining pieces 24, 25 formed as directed inward from the upright portions 22, 23. The base-retaining pieces 24, 25 retain the base 1.Type: ApplicationFiled: January 23, 2007Publication date: October 4, 2007Applicant: MURAKAMI CORPORATIONInventors: Yoshito Tanaka, Masahiko Ito, Yoshitake Nakazawa, Akira Fukai
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Patent number: 7270432Abstract: A mirror (18) having a specular surface changeable in orientation using an actuator (16) is provided with an angle detection capability at reduced cost. A plate pivot (10) can change its orientation together with the specular surface so as to orient in a direction in which the specular surface is orienting. A slide block (20) is stressed toward the plate pivot (10) so that rotation of the plate pivot (10) causes the slide block (20) to move in a direction substantially perpendicular to the specular surface by an amount proportional to an amount of the rotation of the plate pivot (10). A magnet (26) moves in the direction of movement of the slide block (20) by an amount proportional to an amount of the movement of the slide block (20), and a magnetism sensing element (202) detects magnetism derived from the magnet (26) and outputs a signal corresponding to the amount of movement of the magnet (26).Type: GrantFiled: August 3, 2005Date of Patent: September 18, 2007Assignee: Murakami CorporationInventors: Ayako Yamada, Hidenori Sato
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Publication number: 20070211354Abstract: A retractable door mirror suppressing occurrence of flutter or the like between a shaft and a shaft support in a frame, without need for strict dimensional control. In the retractable door mirror a shaft stands upright on a mirror base and a shaft support provided in a mirror body is fitted on the shaft. Notches are formed in the tip part of the shaft support and the diameter of the shaft support is slightly smaller than the diameter of the shaft. The tip part of the shaft support with the notches therein serves as an elastic portion to restrain the shaft by elastic force of the shaft support itself.Type: ApplicationFiled: October 1, 2004Publication date: September 13, 2007Applicant: Murakami CorporationInventors: Kazunari Yamauchi, Kazuyoshi Umeki
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Patent number: 7237918Abstract: A vehicle mirror actuator includes an actuator housing, a first motor, and a second motor. The second motor is provided in the actuator housing and configured to adjust a mirror angle in a second direction of a mirror. The first motor is provided in the actuator housing between the second motor and the mirror and configured to adjust a mirror angle in a first direction of the mirror.Type: GrantFiled: March 2, 2005Date of Patent: July 3, 2007Assignee: Murakami CorporationInventors: Akira Fukai, Fuminori Endoh
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Patent number: 7237917Abstract: A vehicle mirror comprises a mirror surface; a plate pivot 110 which tilts the mirror surface by tilting the plate pivot itself, a housing 120 which covers the plate pivot facing to the rear surface of the mirror surface across the plate pivot, which possesses a bottom portion substantially parallel to the plate pivot, and a curved side wall which is brought into contact with the side surface of the plate pivot to guide the side surface; an adjust nut 108 which is provided between the housing and the plate pivot, and which moves toward or backward to the rear surface of the pivot to tilt the plate pivot; a rotational variable resistor 118 which is provided between the housing and the plate pivot, and whose resistance value is varied depending on the rotation amount of a rotor that rotates depending upon the movement of the adjust nut; and a signal outputting portion 124, which outputs a signal corresponding to the titled angle of the mirror surface depending upon the resistance of the rotational variable rType: GrantFiled: September 27, 2005Date of Patent: July 3, 2007Assignee: Murakami CorporationInventors: Ayako Yamada, Hidenori Sato
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Patent number: 7232102Abstract: A member tilting mechanism includes a housing rear having a concave spherical portion, a cap support having a convex spherical portion, a plate pivot having a pivot portion, which is a tubular portion with an arc-like cross section, a spring plate which presses against the cap support towards the housing rear in such a manner that the plate pivot is allowed to tilt in such a state that the pivot portion is held by the concave spherical portion and the convex spherical portion, a tapping screw for fixing the spring plate to the housing rear, and a stopper that is fixed to the housing rear for restricting the deformation of the spring plate in an anti-pressing direction. According to this structure, the stopper restricts the deflection of the spring plate in the anti-pressing direction so as to prevent the excessive tilt of the plate pivot.Type: GrantFiled: July 7, 2005Date of Patent: June 19, 2007Assignee: Murakami CorporationInventor: Akira Fukai
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Publication number: 20070102600Abstract: Spiral springs (20) pressing a lift member (30) in an upward direction is arranged so that wound-up portions (20b) thereof move up and down along lift paths (13a, 13b) according as the lift member (30) moves up and down. In each lift path (13a, 13b) is provided a push-fit portion (40) of which a width is narrower than an outer diameter of the wound-up portion (20b) of the spiral spring (20), and in which according as the lift member (30) is lowered, the wound-up portion (20b) is fitted in such a manner that the wound-up portion becomes radially compressed. Accordingly, a cost-efficient and universally applicable display elevation adjusting apparatus can be provided which can make the operation feeling at the time of raising adjustment constant and can attain adjustment to suit the preference.Type: ApplicationFiled: October 29, 2004Publication date: May 10, 2007Applicants: Murakami Corporation, NEC Display Solutions, Ltd.Inventors: Takashi Ishizaki, Kenichi Hirasawa
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Publication number: 20070086097Abstract: An inner mirror 1 which includes: a mirror body 10 tiltably mounted on a front end of a stay S that extends from a member forming a vehicle room; a mirror 20 for rear viewing, disposed at a front side of the mirror body 10; and covers 30, 40 disposed at a back side of the mirror body 10, wherein a space enabling housing of in-vehicle articles E1, E2 is formed by the mirror body 10 and the covers 30, 40.Type: ApplicationFiled: August 16, 2006Publication date: April 19, 2007Applicant: MURAKAMI CORPORATIONInventors: Masahiro Motomiya, Hidenori Sato
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Patent number: 7190281Abstract: A vehicle environment monitoring device comprises an imaging section for taking image data of an environment of an automobile, the image including at least two types of colors; a setting section for setting a specific area of the image data obtained by the imaging section, wherein the specific area has a strip shape longer in, and parallel to, a horizontal direction of a frame image and includes at least two types of colors; an extraction section for taking in image data of the specific area in units of one or a plurality of frame images taken by the imaging section in time series and extracting moving vector information based on the image data of the specific area; and a detection section for detecting a second vehicle which is present in an environment of a first vehicle having the vehicle environment monitoring device mounted thereon, based on the moving vector information.Type: GrantFiled: February 4, 2005Date of Patent: March 13, 2007Assignees: Sharp Kabushiki Kaisha, Murakami CorporationInventors: Shunsuke Nagasawa, Hidenori Sato, Noriyuki Unno
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Publication number: 20070024996Abstract: An electric mirror control device is provided which can prevent generation of a clutch noise by stopping slipping of a clutch provided at an actuator as quickly as possible while preventing narrowing of an allowable range of a tilting angle of a mirror surface. In controlling an electric mirror, a control device clamps a voltage value of a voltage applied to a motor detected by a mirror surface angle detection circuit to a predetermined upper limit value and a predetermined lower limit value at a clamp circuit. Stop control of the motor is performed based on the voltage value clamped to the upper limit value and the lower limit value in this way.Type: ApplicationFiled: June 6, 2006Publication date: February 1, 2007Applicant: MURAKAMI CORPORATIONInventors: Hiromi Iwasaki, Ayako Yamada
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Publication number: 20070024512Abstract: In a mirror device with an antenna of the present invention the antenna is placed in a mirror housing where a mirror configured to reflect a rear of a vehicle is attached, a grounding portion at least part of which is composed of a conductive material is provided in the mirror housing, and the antenna is electrically connected to the conductive material of the grounding portion.Type: ApplicationFiled: May 2, 2006Publication date: February 1, 2007Applicants: MURAKAMI CORPORATION, NIPPON ANTENNA CO., LTD.Inventors: Masahiko Muramatsu, Mitsuyoshi Nagao, Hidenori Sato, Takeshi Nakayama, Jinichi Inoue
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Publication number: 20060163895Abstract: A gasket for a door mirror according to the present invention is constructed so that when the gasket is interposed and pressed between a mirror base of a door mirror and a mounting seat of a car body, a tip part of a seal lip is pushed against a seating surface of the mounting seat, so as to tilt and bow toward a circumferential portion of the gasket. Then the tip part of the seal lip is resiliently urged against the seating surface of the mounting seat because of its flexibility, so as to seal a clearance between a joint surface of the gasket and the mounting seat of the car body throughout the entire circumference.Type: ApplicationFiled: March 10, 2006Publication date: July 27, 2006Applicant: MURAKAMI CORPORATIONInventor: Yoshitake Nakazawa
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Publication number: 20060132943Abstract: An outer mirror includes a mirror base having a protrusion extending laterally from a side face of a vehicle body; a shaft fixed onto the protrusion; a mirror housing rotatably mounted on the shaft; a mirror for reflecting a rear view mounted on the mirror housing; and an auxiliary mirror mounted on the mirror housing. This auxiliary mirror is for reflecting an area diagonally forward the side face of the vehicle body and located below an upper face of the protrusion.Type: ApplicationFiled: September 30, 2005Publication date: June 22, 2006Applicant: MURAKAMI CORPORATIONInventors: Hisaya Suzuki, Masaaki Matsuura, Masahiro Motomiya