Patents by Inventor Masao Nagano

Masao Nagano 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).

  • Publication number: 20210296795
    Abstract: In a terminal-equipped electric wire in which a first barrel of a crimp terminal is crimped to a core wire exposed portion of an electric wire, a second barrel of the crimp terminal is crimped to a covering portion of the electric wire, and an anticorrosive portion is formed at least in an opening portion between the first barrel and the second barrel, an adhesive member is arranged on an outer peripheral surface of the covering portion, a base member and adhesive layers of the adhesive member are held in an elastically deformed state by being crimped by the second barrel, the inner adhesive layer of the adhesive member adheres to the entire circumference of the outer peripheral surface of the covering portion, and the outer adhesive layer of the adhesive member adheres to the entire circumference of an inner peripheral surface of the second barrel.
    Type: Application
    Filed: March 22, 2021
    Publication date: September 23, 2021
    Inventors: Hidehiko Iwasawa, Masao Nagano
  • Patent number: 10483675
    Abstract: A connector (10) includes terminals (12), a bus bar (11), and a housing (14). Electric wires (19) are connected to the terminals (12). The bus bar (11) electrically connects the terminals. The housing (14) has terminal receiving chambers (16) and a bus bar receiving chamber (15). The terminals (12) are received in the terminal receiving chambers (16). The bus bar (11) is received in the bus bar receiving chamber (15). The bus bar has contact pieces (24), a coupling portion (25), and support portions (26). The support portions (26) extend from both end portions of the coupling portion. A position where the contact pieces make contact with contact point portions and a position where protrusions (29a, 29b) provided in the support portions are locked to the bus bar receiving chamber are aligned with each other in a longitudinal direction of the housing.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: November 19, 2019
    Assignees: YAZAKI CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Noritaka Nishiyama, Masao Nagano, Takahito Nakashima
  • Patent number: 9614326
    Abstract: In a connecting structure of a terminal configured to connect a female terminal inserted into a terminal accommodating chamber to the male terminal, the female terminal comprises a tubular part made of a metal plate and formed into which the male terminal is inserted, a plate shaped engaging piece continued from a side wall of the tubular part and folded back so that the engaging piece is located in a path into which the male terminal is inserted, a notch formed on an outer side surface of a folded back part of the engaging piece. The male terminal is provided with a cut-out part which can accommodate the engaging piece, and the engaging piece is accommodated in the cut-out part when the female terminal is inserted to a set position to lock a movement of the female terminal in a pulling out direction.
    Type: Grant
    Filed: August 13, 2014
    Date of Patent: April 4, 2017
    Assignee: YAZAKI CORPORATION
    Inventors: Masayuki Saito, Takashi Muro, Hiroshi Kobayashi, Masao Nagano
  • Publication number: 20170040731
    Abstract: A connector (10) includes terminals (12), a bus bar (11), and a housing (14). Electric wires (19) are connected to the terminals (12). The bus bar (11) electrically connects the terminals. The housing (14) has terminal receiving chambers (16) and a bus bar receiving chamber (15). The terminals (12) are received in the terminal receiving chambers (16). The bus bar (11) is received in the bus bar receiving chamber (15). The bus bar has contact pieces (24), a coupling portion (25), and support portions (26). The support portions (26) extend from both end portions of the coupling portion. A position where the contact pieces make contact with contact point portions and a position where protrusions (29a, 29b) provided in the support portions are locked to the bus bar receiving chamber are aligned with each other in a longitudinal direction of the housing.
    Type: Application
    Filed: March 27, 2015
    Publication date: February 9, 2017
    Applicants: YAZAKI CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Noritaka NISHIYAMA, Masao NAGANO, Takahito NAKASHIMA
  • Patent number: 9391404
    Abstract: A lever-operative connector which can be downsized includes a frame and a lever rotatably coupled to the frame. The frame has a circumferential wall having one opening and the other opening at both ends. The frame has a notch formed in the circumferential wall and communicating with the one opening. When the lever is rotated toward the one opening side, a part of a lever side wall is exposed from an interior of the circumferential wall so as to compensate the notch of the circumferential wall, thereby forming, together with the frame, a hood having the housing-receiving width. When the lever is rotated toward the other opening side, the part of the lever side wall is received inside the circumferential wall so as to open the notch of the circumferential wall, thereby eliminating the housing-receiving width and the hood.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: July 12, 2016
    Assignee: Yazaki Corporation
    Inventors: Tomohiko Shimizu, Akinori Tashiro, Akihiro Tsuruta, Kazuya Terao, Hiroshi Kobayashi, Masao Nagano
  • Patent number: 9124028
    Abstract: A connector includes: a female terminal housing provided with a terminal receiving cavity receiving a female terminal; and a male terminal housing retaining a male terminal to be connected to the female terminal. The male and female terminal housings have first and second engagement portions. The male and female terminal housings are fitted in a first fitting position by the first engagement portion. The male and female terminal housings are fitted in a second fitting position by the second engagement portion. The first fitting position is a position in which the locking hole of the female terminal is engaged with the lance of the terminal receiving cavity, and in which the male terminal is not in sliding contact with the female terminal. The second fitting position is a position in which the male terminal is in sliding contact with the female terminal.
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: September 1, 2015
    Assignee: YAZAKI CORPORATION
    Inventors: Takahito Nakashima, Hiroshi Kobayashi, Masao Nagano, Takayoshi Hirakawa, Masayuki Saitoh
  • Patent number: 9028265
    Abstract: A lever mechanism for connector fitting 1 includes a hold part 2 for holding a connector housing 4, and a handle part 3. When the handle part 3 is rotated and the connector housing 4 is thereby inserted into the connector housing 5, an engaging projection 24 is caused to retreat from the inner surface of a side plate 21 toward the connector housing 4, thereby removing the holding of the connector housing 4 by the hold part 2.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: May 12, 2015
    Assignee: Yazaki Corporation
    Inventors: Hiroshi Aoki, Osamu Oshita, Naoki Kobayashi, Hiroshi Kobayashi, Masao Nagano, Akihiro Tsuruta, Tetsuya Hayashi
  • Publication number: 20140357110
    Abstract: In a connecting structure of a terminal configured to connect a female terminal inserted into a terminal accommodating chamber to the male terminal, the female terminal comprises a tubular part made of a metal plate and formed into which the male terminal is inserted, a plate shaped engaging piece continued from a side wall of the tubular part and folded back so that the engaging piece is located in a path into which the male terminal is inserted, a notch formed on an outer side surface of a folded back part of the engaging piece. The male terminal is provided with a cut-out part which can accommodate the engaging piece, and the engaging piece is accommodated in the cut-out part when the female terminal is inserted to a set position to lock a movement of the female terminal in a pulling out direction.
    Type: Application
    Filed: August 13, 2014
    Publication date: December 4, 2014
    Inventors: Masayuki Saito, Takashi Muro, Hiroshi Kobayashi, Masao Nagano
  • Publication number: 20140113480
    Abstract: A lever mechanism for connector fitting 1 includes a hold part 2 for holding a connector housing 4, and a handle part 3. When the handle part 3 is rotated and the connector housing 4 is thereby inserted into the connector housing 5, an engaging projection 24 is caused to retreat from the inner surface of a side plate 21 toward the connector housing 4, thereby removing the holding of the connector housing 4 by the hold part 2.
    Type: Application
    Filed: June 14, 2012
    Publication date: April 24, 2014
    Applicant: YAZAKI CORPORATION
    Inventors: Hiroshi Aoki, Osamu Oshita, Naoki Kobayashi, Hiroshi Kobayashi, Masao Nagano, Akihiro Tsuruta, Tetsuya Hayashi
  • Publication number: 20140113471
    Abstract: A lever-operative connector which can be downsized includes a frame and a lever rotatably coupled to the frame. The frame has a circumferential wall having one opening and the other opening at both ends. The frame has a notch formed in the circumferential wall and communicating with the one opening. When the lever is rotated toward the one opening side, a part of a lever side wall is exposed from an interior of the circumferential wall so as to compensate the notch of the circumferential wall, thereby forming, together with the frame, a hood having the housing-receiving width. When the lever is rotated toward the other opening side, the part of the lever side wall is received inside the circumferential wall so as to open the notch of the circumferential wall, thereby eliminating the housing-receiving width and the hood.
    Type: Application
    Filed: December 27, 2013
    Publication date: April 24, 2014
    Applicant: YAZAKI CORPORATION
    Inventors: Tomohiko Shimizu, Akinori Tashiro, Akihiro Tsuruta, Kazuya Terao, Hiroshi Kobayashi, Masao Nagano
  • Publication number: 20130323958
    Abstract: A connector includes: a female terminal housing provided with a terminal receiving cavity receiving a female terminal; and a male terminal housing retaining a male terminal to be connected to the female terminal. The male and female terminal housings have first and second engagement portions. The male and female terminal housings are fitted in a first fitting position by the first engagement portion. The male and female terminal housings are fitted in a second fitting position by the second engagement portion. The first fitting position is a position in which the locking hole of the female terminal is engaged with the lance of the terminal receiving cavity, and in which the male terminal is not in sliding contact with the female terminal. The second fitting position is a position in which the male terminal is in sliding contact with the female terminal.
    Type: Application
    Filed: May 29, 2013
    Publication date: December 5, 2013
    Inventors: Takahito NAKASHIMA, Hiroshi KOBAYASHI, Masao NAGANO, Takayoshi HIRAKAWA, Masayuki SAITOH
  • Patent number: 8400250
    Abstract: A composite (combined type of) transformer includes: a transformer core including a plurality of transformer magnetic leg portions, a transformer magnetic leg portion, and a pair of transformer bases; a plurality of inductor cores each including an inductor magnetic leg portions, inductor outer magnetic leg portions, and a pair of inductor bases; and a plurality of windings wound around the transformer magnetic leg portion and the inductor magnetic leg portions. The windings are wound to generate magnetic fluxes in such directions as to be cancelled out in a magnetic closed circuit in the transformer core.
    Type: Grant
    Filed: September 2, 2011
    Date of Patent: March 19, 2013
    Assignee: Honda Motor Co., Ltd.
    Inventors: Masao Nagano, Satoshi Hashino, Mitsuaki Hirakawa
  • Patent number: 8325004
    Abstract: A composite transformer includes: a transformer core including transformer-core legs; inductor cores including inductor-core legs; windings wound around the transformer-core legs and the inductor-core legs; the transformer core includes a pair of transformer bases connected to both ends of each of the transformer-core legs, and allows formation of closed magnetic circuits in the transformer core; each of the inductor cores includes one of the inductor-core legs, an outer core leg, and a pair of inductor bases connected to both ends of the one of the inductor-core legs and both ends of the outer core leg, and allows formation of a closed magnetic circuit in each inductor core; and the windings are wound in such directions that the magnetic fluxes produced in the transformer-core legs cancel each other in the closed magnetic circuits in the transformer core whichever of the windings is energized.
    Type: Grant
    Filed: September 2, 2011
    Date of Patent: December 4, 2012
    Assignee: Honda Motor Co., Ltd.
    Inventors: Masao Nagano, Satoshi Hashino, Mitsuaki Hirakawa
  • Patent number: 8138744
    Abstract: Combined type transformer includes: a transformer core; first and second coils provided with respect to the transformer core; first and second inductor cores provided around the first coil; and third and fourth inductor cores provided around the second coil. The transformer core and the first and second coils constitute a transformer, the first coil and the first and second inductor cores constitute a first inductor, and the second coil and the third and fourth inductor cores constitute a second inductor.
    Type: Grant
    Filed: August 4, 2010
    Date of Patent: March 20, 2012
    Assignees: Honda Motor Co., Ltd.
    Inventors: Masao Nagano, Mitsuaki Hirakawa, Toshihisa Shimizu
  • Publication number: 20120062349
    Abstract: A composite (combined type of) transformer includes: a transformer core including a plurality of transformer magnetic leg portions, a transformer magnetic leg portion, and a pair of transformer bases; a plurality of inductor cores each including an inductor magnetic leg portions, inductor outer magnetic leg portions, and a pair of inductor bases; and a plurality of windings wound around the transformer magnetic leg portion and the inductor magnetic leg portions. The windings are wound to generate magnetic fluxes in such directions as to be cancelled out in a magnetic closed circuit in the transformer core.
    Type: Application
    Filed: September 2, 2011
    Publication date: March 15, 2012
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Masao NAGANO, Satoshi HASHINO, Mitsuaki HIRAKAWA
  • Publication number: 20120056704
    Abstract: A composite transformer includes: a transformer core including transformer-core legs; inductor cores including inductor-core legs; windings wound around the transformer-core legs and the inductor-core legs; the transformer core includes a pair of transformer bases connected to both ends of each of the transformer-core legs, and allows formation of closed magnetic circuits in the transformer core; each of the inductor cores includes one of the inductor-core legs, an outer core leg, and a pair of inductor bases connected to both ends of the one of the inductor-core legs and both ends of the outer core leg, and allows formation of a closed magnetic circuit in each inductor core; and the windings are wound in such directions that the magnetic fluxes produced in the transformer-core legs cancel each other in the closed magnetic circuits in the transformer core whichever of the windings is energized.
    Type: Application
    Filed: September 2, 2011
    Publication date: March 8, 2012
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Masao NAGANO, Satoshi HASHINO, Mitsuaki HIRAKAWA
  • Patent number: 8064198
    Abstract: A cooling device for a semiconductor element module and a magnetic part, includes: a water-cooled type heat sink having a cooling water passage; a semiconductor element module including a plurality of chips arranged side by side in a circulation direction in the cooling water passage, the semiconductor element module being mounted on the heat sink; and a magnetic part including a core and a winding portion mounted on the core, the magnetic part being mounted on the heat sink or another heat sink. In the cooling device, a plurality of cooling fins is disposed to extend along the circulation direction in the cooling water passage in a manner that the plurality of cooling fins are separated into groups for the respective chips arranged side by side in the circulation direction, and that the groups of the cooling fins are offset from each other in a direction perpendicular to the circulation direction. Accordingly, it is possible to have improved cooling efficiency of a heat sink with cooling fins.
    Type: Grant
    Filed: June 22, 2010
    Date of Patent: November 22, 2011
    Assignee: Honda Motor Co., Ltd.
    Inventors: Yoshihiko Higashidani, Takeshi Kato, Masao Nagano, Tsutomu Yoshino
  • Patent number: 8013703
    Abstract: A multi-parallel magnetic-filed cancellation type transformer includes a plurality of coils which generate magnetic flux during energization and a core having a plurality of magnetic leg portions on which the coils are wound, and bases for fixing the magnetic leg portions. The plurality of coils are wound on the magnetic leg portions in such a manner that the magnetic flux generated from the coils are formed in the directions opposite to each other. A plurality of closed magnetic circuits of the magnetic flux are formed at the magnetic leg portions and the bases. The magnetic resistance of the closed magnetic circuits is homogeneous. Accordingly, the transformer can reduce the size thereof, and prevent the deterioration of electric power conversion efficiency.
    Type: Grant
    Filed: August 10, 2010
    Date of Patent: September 6, 2011
    Assignee: Honda Motor Co., Ltd.
    Inventors: Satoshi Hashino, Masao Nagano, Mitsuaki Hirakawa
  • Patent number: 7988502
    Abstract: According to the invention, the lance for primarily retaining the terminal is formed integrally on the retainer for secondarily retaining the terminal. Therefore, there is no need to form the lance on the connector housing, and therefore the structure of the connector housing can be simplified, and the moldability of the resin-made connector housing can be enhanced.
    Type: Grant
    Filed: September 15, 2009
    Date of Patent: August 2, 2011
    Assignee: Yazaki Corporation
    Inventors: Masao Nagano, Shogo Suzuki
  • Publication number: 20100328893
    Abstract: A cooling device for a semiconductor element module and a magnetic part, includes: a water-cooled type heat sink having a cooling water passage; a semiconductor element module including a plurality of chips arranged side by side in a circulation direction in the cooling water passage, the semiconductor element module being mounted on the heat sink; and a magnetic part including a core and a winding portion mounted on the core, the magnetic part being mounted on the heat sink or another heat sink. In the cooling device, a plurality of cooling fins is disposed to extend along the circulation direction in the cooling water passage in a manner that the plurality of cooling fins are separated into groups for the respective chips arranged side by side in the circulation direction, and that the groups of the cooling fins are offset from each other in a direction perpendicular to the circulation direction. Accordingly, it is possible to have improved cooling efficiency of a heat sink with cooling fins.
    Type: Application
    Filed: June 22, 2010
    Publication date: December 30, 2010
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Yoshihiko HIGASHIDANI, Takeshi KATO, Masao NAGANO, Tsutomu YOSHINO