Patents by Inventor Keita Nakashima

Keita Nakashima 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).

  • Patent number: 11979012
    Abstract: There are provided an electric connection box and a wire harness including: a body including an accommodating portion inside the body, the accommodating portion being configured to accommodate an electronic component. The body includes an electric wire holding portion inside the body, the electric wire holding portion having a slit-shaped groove configured to radially sandwich and hold an electric wire extending from a connector to be connected to the electronic component. The groove of the electric wire holding portion includes: a groove inlet portion; a groove deepest portion; and a narrow portion between the groove inlet portion and the groove deepest portion. A groove width in the narrow portion is narrower than a groove width in the groove inlet portion.
    Type: Grant
    Filed: September 23, 2022
    Date of Patent: May 7, 2024
    Assignees: YAZAKI CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA, SUBARU CORPORATION
    Inventors: Akinori Nakashima, Keita Miyahara, Kazuya Kushibiki
  • Patent number: 11149808
    Abstract: An excitation operation brake includes a braking shaft, an armature that rotates integrally with the braking shaft, and a field core including a disc portion facing the armature. The disc portion includes an outer magnetic shielding portion and an inner magnetic shielding portion, which make a magnetic flux flowing through the disc portion bypass to the armature a plurality of times. The outer magnetic shielding portion includes a low-magnetic resistance path having a magnetic resistance smaller than the magnetic resistance of a magnetic path that bypasses to the armature.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: October 19, 2021
    Assignee: OGURA CLUTCH CO., LTD.
    Inventors: Yasuo Kidena, Keita Nakashima, Takeshi Maeda, Motoi Kato, Yoshihiro Kurosu, Hiroyasu Onai, Kosuke Murakami
  • Publication number: 20200112234
    Abstract: An excitation operation brake includes a braking shaft, an armature that rotates integrally with the braking shaft, and a field core including a disc portion facing the armature. The disc portion includes an outer magnetic shielding portion and an inner magnetic shielding portion, which make a magnetic flux flowing through the disc portion bypass to the armature a plurality of times. The outer magnetic shielding portion includes a bypass magnetic path having a magnetic resistance smaller than the magnetic resistance of a magnetic path that bypasses the armature.
    Type: Application
    Filed: October 2, 2019
    Publication date: April 9, 2020
    Inventors: Yasuo KIDENA, Keita NAKASHIMA, Takeshi MAEDA, Motoi KATO, Yoshihiro KUROSU, Hiroyasu ONAI, Kosuke MURAKAMI
  • Patent number: 10116097
    Abstract: A shield terminal (10) includes an inner conductor terminal (11), dielectrics (12, 13) configured to accommodate the inner conductor terminal (11), an outer conductor terminal (20) configured to surround the dielectrics (12, 13), a tubular fitting (30) formed in a front end part of the outer conductor terminal (20) in an axial direction, and resilient contacts (31) formed in the tubular fitting (30) and having both front and rear ends integrally connected to the tubular fitting (30). The tubular fitting (30) has interlocking regions (39) surrounding only front end parts (31F) of the resilient contacts (31) and connected to front ends of the resilient contacts (31) are radially resiliently deflectable with front end sides thereof as free ends.
    Type: Grant
    Filed: October 18, 2017
    Date of Patent: October 30, 2018
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventor: Keita Nakashima
  • Publication number: 20180115115
    Abstract: A shield terminal (10) includes an inner conductor terminal (11), dielectrics (12, 13) configured to accommodate the inner conductor terminal (11), an outer conductor terminal (20) configured to surround the dielectrics (12, 13), a tubular fitting (30) formed in a front end part of the outer conductor terminal (20) in an axial direction, and resilient contacts (31) formed in the tubular fitting (30) and having both front and rear ends integrally connected to the tubular fitting (30). The tubular fitting (30) has interlocking regions (39) surrounding only front end parts (31F) of the resilient contacts (31) and connected to front ends of the resilient contacts (31) are radially resiliently deflectable with front end sides thereof as free ends.
    Type: Application
    Filed: October 18, 2017
    Publication date: April 26, 2018
    Inventor: Keita Nakashima
  • Patent number: 9509077
    Abstract: A connector includes a pressure receiving surface (16) on a front of a locking lance (12) and a lock (36) on a terminal (30) is configured to lock the pressure receiving surface (16). An inclined surface (15) on a facing surface (13) of the locking lance (12) faces the terminal (30) and is inclined to be more separated from the terminal fitting (30) toward the back. A guiding surface (18) on the pressure receiving surface (16) is configured to deflect the locking lance (12) toward the terminal (30) when the lock (36) presses the pressure receiving surface (16). A contact surface (21) behind the pressure receiving surface (16) on the locking lance (12) faces the terminal (30). A deflection regulating portion (38) behind the lock (36) on the terminal (30) faces the contact surface (21) while being spaced apart parallel to a resilient deflecting direction of the locking lance (12).
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: November 29, 2016
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Shinji Iihoshi, Keita Nakashima
  • Patent number: 9484658
    Abstract: A connector (C) includes a housing (20) formed with terminal accommodation chambers (22). Terminal fittings (10) are inserted into the terminal accommodation chambers (22) from behind. Rectangular tab insertion holes (24) penetrates through a front wall (23) of the housing (20) and allow tabs (61) to be inserted into the terminal accommodation chambers (22). Guide slopes (29, 30) are formed by recessing and tapering an opening edge part of the tab insertion hole (22) on a front surface of the front wall (23). Detection holes (31) penetrate through the front wall (23) and communicate with corner parts of the tab insertion holes (24) so that a probe (50) for conduction test can be inserted into the terminal accommodation chambers (22) from the front.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: November 1, 2016
    Assignee: SUMITOMO WIRING SYSTEMS, LTD.
    Inventors: Keita Nakashima, Shinji Iihoshi
  • Publication number: 20160164212
    Abstract: A connector includes a pressure receiving surface (16) on a front of a locking lance (12) and a lock (36) on a terminal (30) is configured to lock the pressure receiving surface (16). An inclined surface (15) on a facing surface (13) of the locking lance (12) faces the terminal (30) and is inclined to be more separated from the terminal fitting (30) toward the back. A guiding surface (18) on the pressure receiving surface (16) is configured to deflect the locking lance (12) toward the terminal (30) when the lock (36) presses the pressure receiving surface (16). A contact surface (21) behind the pressure receiving surface (16) on the locking lance (12) faces the terminal (30). A deflection regulating portion (38) behind the lock (36) on the terminal (30) faces the contact surface (21) while being spaced apart parallel to a resilient deflecting direction of the locking lance (12).
    Type: Application
    Filed: December 4, 2013
    Publication date: June 9, 2016
    Applicant: Sumitomo Wiring Systems, Ltd.
    Inventors: Shinji Iihoshi, Keita Nakashima
  • Publication number: 20160013576
    Abstract: A connector (C) includes a housing (20) formed with terminal accommodation chambers (22). Terminal fittings (10) are inserted into the terminal accommodation chambers (22) from behind. Rectangular tab insertion holes (24) penetrates through a front wall (23) of the housing (20) and allow tabs (61) to be inserted into the terminal accommodation chambers (22). Guide slopes (29, 30) are formed by recessing and tapering an opening edge part of the tab insertion hole (22) on a front surface of the front wall (23). Detection holes (31) penetrate through the front wall (23) and communicate with corner parts of the tab insertion holes (24) so that a probe (50) for conduction test can be inserted into the terminal accommodation chambers (22) from the front.
    Type: Application
    Filed: December 4, 2013
    Publication date: January 14, 2016
    Inventors: Keita Nakashima, Shinji Iihoshi
  • Patent number: 8657578
    Abstract: In an object to provide a gear box for a wind turbine generator and a wind turbine generator in which the life of the planet bearings are further enhanced, a gear box of the present invention includes a casing, a carrier, planet pins held to the carrier, planet bearings supported to the planet pins, respectively, a plurality of planet gears supported to the planet pin via the planet bearings, respectively, and a ring gear and a sun gear meshed with the planet gears. In the gear box, the carrier has an inclined surface facing the planet bearing as a part of an outer cylinder part provided on both ends of the planet pins in axial direction of the planet pin and surrounding the outer circumference of the both ends of the planet pins and the incline surface inclines such that the farther from an axial center of the planet pin, the longer a distance between the inclined surface and the planet bearing.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: February 25, 2014
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Keita Nakashima, Kaoru Iwasaki, Takafumi Yoshida, Hiroaki Takeuchi, Katsuhiko Shoda
  • Publication number: 20120208669
    Abstract: The present invention provides a gear box for a wind turbine generator which can reduce damage by flaking even when a self-aligning roller bearing is adopted as a planet bearing and a wind turbine generator. The gear box 14 comprises a casing 40; a carrier 52; a plurality of planet pins 54 supported to the carrier 52; self-aligning roller bearings 56 held on the planet pins 54, respectively; the planet gears 58 supported to the planet pins 54 via the self-aligning roller bearing 56, respectively; and a ring gear 60 and a sun gear 62 meshed with the planet gears 58. The planet gears 58 are fixed to the outer race 56B of the self-aligning bearing 56 with an interference fit, respectively, so that each end surface of the outer race 56B of the self-aligning bearing 56 is positioned inner side to an end surface of each planet gears 58.
    Type: Application
    Filed: February 12, 2010
    Publication date: August 16, 2012
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Keita Nakashima, Kaoru Iwasaki, Takafumi Yoshida, Hiroaki Takeuchi, Katsuhiko Shoda
  • Publication number: 20120003096
    Abstract: In an object to provide a gear box for a wind turbine generator and a wind turbine generator in which the life of the planet bearings are further enhanced, a gear box of the present invention includes a casing, a carrier, planet pins held to the carrier, planet bearings supported to the planet pins, respectively, a plurality of planet gears supported to the planet pin via the planet bearings, respectively, and a ring gear and a sun gear meshed with the planet gears. In the gear box, the carrier has an inclined surface facing the planet bearing as a part of an outer cylinder part provided on both ends of the planet pins in axial direction of the planet pin and surrounding the outer circumference of the both ends of the planet pins and the incline surface inclines such that the farther from an axial center of the planet pin, the longer a distance between the inclined surface and the planet bearing.
    Type: Application
    Filed: February 12, 2010
    Publication date: January 5, 2012
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Keita Nakashima, Kaoru Iwasaki, Takafumi Yoshida, Hiroaki Takeuchi, Katsuhiko Shoda
  • Patent number: 7927019
    Abstract: A slewing bearing includes: an outer ring section having first and second circumferential grooves formed on an inner circumferential surface in parallel; an inner ring section formed on an inner side of the outer ring section and having first and second circumferential grooves formed on an outer circumferential surface in parallel in correspondence to the first and second circumferential grooves of the outer ring section; a first row of rolling elements provided in the first circumferential groove of the outer ring section and the first circumferential groove of the inner ring section; and a second row of rolling element provided in the second circumferential groove of the outer ring section and the second circumferential groove of the inner ring section. The inner ring section rotates via the first and second rolling element rows around a rotation axis in a relatively opposite direction to the outer ring section.
    Type: Grant
    Filed: May 31, 2005
    Date of Patent: April 19, 2011
    Assignee: Mitsubishi Heavy Industries Ltd.
    Inventors: Takafumi Yoshida, Katsuhiko Takita, Hisao Miyake, Masaaki Shibata, Keita Nakashima
  • Publication number: 20090016665
    Abstract: A slewing bearing includes: an outer ring section having first and second circumferential grooves formed on an inner circumferential surface in parallel; an inner ring section formed on an inner side of the outer ring section and having first and second circumferential grooves formed on an outer circumferential surface in parallel in correspondence to the first and second circumferential grooves of the outer ring section; a first row of rolling elements provided in the first circumferential groove of the outer ring section and the first circumferential groove of the inner ring section; and a second row of rolling element provided in the second circumferential groove of the outer ring section and the second circumferential groove of the inner ring section. The inner ring section rotates via the first and second rolling element rows around a rotation axis in a relatively opposite direction to the outer ring section.
    Type: Application
    Filed: May 31, 2005
    Publication date: January 15, 2009
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Takafumi Yoshida, Katsuhiko Takita, Hisao Miyake, Masaaki Shibata, Keita Nakashima