Patents by Inventor Takaki Iwashita
Takaki Iwashita 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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Patent number: 11600406Abstract: An object of the present disclosure is to provide a technique that can prevent, in a wire harness including a fixing member, the fixing member from being attached in a deviated orientation. A wire harness includes: a wiring member; a fixing member provided on the wiring member; and a first reference mark and a second reference mark that are each provided at a position of the wiring member that corresponds to the fixing member. The first reference mark and the second reference mark each have a distinctive external appearance in a circumferential direction of the wiring member. The first reference mark indicates a reference position of the wiring member in the circumferential direction, and the second reference mark indicates a position of the wiring member in the circumferential direction, the position serving as a reference for an attachment orientation of the fixing member.Type: GrantFiled: September 23, 2021Date of Patent: March 7, 2023Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Yoshinori Nakamura, Kyungwoo Kim, Toshinari Kobayashi, Futa Asano, Yukitoshi Terasaka, Takaki Iwashita
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Publication number: 20220093289Abstract: An object of the present disclosure is to provide a technique that can prevent, in a wire harness including a fixing member, the fixing member from being attached in a deviated orientation. A wire harness includes: a wiring member; a fixing member provided on the wiring member; and a first reference mark and a second reference mark that are each provided at a position of the wiring member that corresponds to the fixing member. The first reference mark and the second reference mark each have a distinctive external appearance in a circumferential direction of the wiring member. The first reference mark indicates a reference position of the wiring member in the circumferential direction, and the second reference mark indicates a position of the wiring member in the circumferential direction, the position serving as a reference for an attachment orientation of the fixing member.Type: ApplicationFiled: September 23, 2021Publication date: March 24, 2022Inventors: Yoshinori Nakamura, Kyungwoo Kim, Toshinari Kobayashi, Futa Asano, Yukitoshi Terasaka, Takaki Iwashita
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Publication number: 20080204007Abstract: A wheel speed sensor includes a hall IC that outputs a signal representing a change of magnetic field generated by rotation of a detection object and that is simply covered with resin coating. In the process of molding the resin coating, a resin injection opening is positioned away from an end face of a sheath of a cable to be coated by a length no less than a minimum adhesion length for ensuring adhesion between the sheath and the resin coating. In addition, the holder and a cover of the detector are provided with waterproof protrusions extending along the entire peripheries of contact areas in which pressing pins are brought into contact with the holder and the cover. Accordingly, immersion of the detector is reliably prevented even when a void or the like occurs in the resin coating at a position near the injection opening.Type: ApplicationFiled: February 26, 2008Publication date: August 28, 2008Inventors: Kyungwoo Kim, Takaki Iwashita, Tadashi Hattori
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Patent number: 6897647Abstract: A revolution detecting sensor includes a Hall IC facing a detection target, a magnet positioned behind the Hall IC and applying a bias magnetic field, and a substrate provided with a detecting circuit. The revolution detecting sensor is configured such that a lead terminal from the Hall IC bypasses the magnet, to be guided to the substrate. In a magnet holder holding the magnet, a recessed guide guiding the lead terminal is formed, and a pressing member is provided. Thus, a tip end portion of the lead terminal can be held in a prescribed position, and an operation for attachment to the substrate can easily be performed.Type: GrantFiled: March 26, 2003Date of Patent: May 24, 2005Assignee: Sumitomo Electric Industries, Ltd.Inventor: Takaki Iwashita
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Publication number: 20030193328Abstract: A revolution detecting sensor includes a Hall IC facing a detection target, a magnet positioned behind the Hall IC and applying a bias magnetic field, and a substrate provided with a detecting circuit. The revolution detecting sensor is configured such that a lead terminal from the Hall IC bypasses the magnet, to be guided to the substrate. In a magnet holder holding the magnet, a recessed guide guiding the lead terminal is formed, and a pressing member is provided. Thus, a tip end portion of the lead terminal can be held in a prescribed position, and an operation for attachment to the substrate can easily be performed.Type: ApplicationFiled: March 26, 2003Publication date: October 16, 2003Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventor: Takaki Iwashita
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Patent number: 5444533Abstract: Conventional fiber-optic gyroscopes were provided with an independent photodetector for detecting interfering beams. The existence of the independent photodetector required two beam dividing-and-combining devices for equalizing the experiences of the clockwise-spreading beams and the counterclockwise-spreading beams. Curtailment of an expensive beam dividing-and-combining device is desirable for reducing the cost of gyroscopes. This invention dispenses with the independent photodetector. Instead of the independent photodetector, the light source itself or the monitoring photodiode detects the interfering beams by the change of driving current, applied voltage or photocurrent. Elimination of the independent photodetector saves one beam dividing-and-combining device by equalizing the path of the progressing beams to the path of the regressing beams. Optimum light sources, interposition of polarizer, position of depolarizer and use of birefringent material as polarizer are explained.Type: GrantFiled: August 31, 1993Date of Patent: August 22, 1995Assignee: Sumitomo Electric Industries, Ltd.Inventors: Yozo Nishiura, Takaki Iwashita, Akihiro Ooka
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Patent number: 5386484Abstract: An optical fiber type polarizer comprises a first optical fiber constituted by a birefringent optical fiber wound at a predetermined winding radius and having winding start and end fixed to each other by an adhesive, the first optical fiber having short extra portions respectively extending from the winding start and end, and the length of each of the short extra porions being at least as small as the predetermined winding radius. The optical fiber type polarizer further comprises a second optical fiber spliced to one of the short extra portions of the first optical fiber, and a third optical fiber spliced to the other of the short extra portions of the first optical fiber.Type: GrantFiled: September 9, 1993Date of Patent: January 31, 1995Assignee: Sumitomo Electric Industries, Ltd.Inventors: Akihiro Ooka, Kenji Kawamura, Yozo Nishiura, Katsuaki Itoh, Takaki Iwashita, Yasuhiko Nishi, Noritaka Kuroda, Hayato Hasegawa
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Patent number: 5371595Abstract: A fiber-optic gyroscope having a depolarizer installed near the fiber coil and a polarizer disposed in the optical path before the light is divided in two partial lights to avoid the fluctuation of the light power passing reversely through the polarizer induced by the rotation of the polarization plane of the light. However, since the light emitting device emits a linearly polarized light, the light power first passing through the polarizer will fluctuate by the rotation of the polarization plane. This invention adds another depolarizer between the light emitting device and the polarizer in order to kill such a fluctuation.Type: GrantFiled: March 8, 1993Date of Patent: December 6, 1994Assignee: Sumitomo Electric Industries, Ltd.Inventors: Yozo Nishiura, Takaki Iwashita
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Patent number: 5245407Abstract: A fiber-optic gyroscope having a depolarizer installed near the fiber coil and a polarizer disposed in the optical path before the light is divided in two partial lights to avoid the fluctuation of the light power passing reversely through the polarizer induced by the rotation of the polarization plane of the light. However, since the light emitting device emits a linearly polarized light, the light power first passing through the polarizer will fluctuate by the rotation of the polarization plane. This invention adds another depolarizer between the light emitting device and the polarizer in order to kill such a fluctuation.Type: GrantFiled: August 22, 1991Date of Patent: September 14, 1993Assignee: Sumitomo Electric Industries, Ltd.Inventors: Yozo Nishiura, Takaki Iwashita