Patents by Inventor Yukihiro Fukatsu

Yukihiro Fukatsu 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: 7104841
    Abstract: A watertight connector has a housing (10) with terminal fittings (11) therein. A busbar element (14) is mounted on the front of the housing (10) to short the terminal fittings (11). The busbar element (14) engages engageable portions (22; 23) formed by a mold removing space (24) in the housing (10). A rubber plug (12) and a plug holder (13) are assembled with the housing (10) by engaging locks (25) on the plug holder (13) with the housing (10). The locks (25) are inserted into the mold removing spaces (24). The locks (25) and the engageable portions (22, 23) overlap in width and/or height directions to miniaturize the watertight connector.
    Type: Grant
    Filed: October 28, 2005
    Date of Patent: September 12, 2006
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Yukihiro Fukatsu, Kiyofumi Ichida
  • Patent number: 7104831
    Abstract: A male housing (10) includes male terminal fittings (11), and a receptacle (12) for surrounding tabs (11a) of the male terminal fittings (11). A female housing (20) includes female terminal fittings (21) and a tubular fitting (29) fittable on the receptacle (12). Since preventing projections (32A, 32B, 32C) for preventing relative displacements of the receptacle (12) and the tubular fitting (29) by contacting the outer surface of the receptacle (12) are provided at the back end of the inner surface of the tubular fitting (29), an abrasion between the terminal fittings (11, 21) due to fine sliding movements resulting from the relative displacements of the two housings (10, 20) can be prevented.
    Type: Grant
    Filed: July 5, 2005
    Date of Patent: September 12, 2006
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Yukihiro Fukatsu, Yukihiro Toyoda, Kiyofumi Ichida
  • Patent number: 7056159
    Abstract: A male housing (20) is provided with cavities (23) for inserting male terminal metal pieces (10) in two upper and lower stages and a retainer mounting hole (27) opening the respective cavities (23) in a lower direction and in two side directions. The retainer (40) is mounted movably and skewedly to a direction of inserting and drawing the male terminal metal piece (10) between a full locking position permitting to insert and draw the male terminal metal piece (10) and a regular locking position locked to the male terminal metal piece (10).
    Type: Grant
    Filed: June 10, 2004
    Date of Patent: June 6, 2006
    Assignees: Sumitomo Wiring Systems, Ltd., Honda Motor Co., Ltd.
    Inventors: Yukihiro Fukatsu, Toshikazu Sakurai, Satoshi Suda, Yoshiaki Kida, Masaru Shinmura
  • Publication number: 20060094275
    Abstract: A watertight connector has a housing (10) with terminal fittings (11) therein. A busbar element (14) is mounted on the front of the housing (10) to short the terminal fittings (11). The busbar element (14) engages engabeable portions (22; 23) formed by a mold removing space (24) in the housing (10). A rubber plug (12) and a plug holder (13) are assembled with the housing (10) by engaging locks (25) on the plug holder (13) with the housing (10). The locks (25) are inserted into the mold removing spaces (24). The locks (25) and the engageable portions (22, 23) overlap in width and/or height directions to miniaturize the watertight connector.
    Type: Application
    Filed: October 28, 2005
    Publication date: May 4, 2006
    Applicant: Sumitomo Wiring Systems, Ltd.
    Inventors: Yukihiro Fukatsu, Kiyofumi Ichida
  • Publication number: 20060089030
    Abstract: A return preventing portion flexible locking piece (20) and return preventing portion (52) for preventing a lever (40) from returning from a standby position to a mount position and a locking means flexible locking piece (20) and lock arm (47) for locking the lever (40) at a connection position are provided. The flexible locking piece (20) return preventing means, locking means of a first housing (10) one member is engaged with the lock arm (47) of the lever (40) (other member), whereby the lever (40) is locked at the connection position. The shape of the first housing (10) can be simplified since it is not necessary to provide the first housing (10) with a locking means for exclusive use in addition to the flexible locking piece (20).
    Type: Application
    Filed: October 24, 2005
    Publication date: April 27, 2006
    Applicant: Sumitomo Wiring Systems, Ltd.
    Inventor: Yukihiro Fukatsu
  • Patent number: 7033201
    Abstract: A lock (35) is provided at the leading end of a resiliently deformable lock arm (33) on a female housing (20) and engages an engaging portion (14) on a male housing (10). An unlocking arm (40) is provided separate from the lock arm (33) and is resiliently inclinable like a seesaw. Projecting pieces (48) are formed on opposite surfaces of the lock (35) and unlocking pieces (49) on the unlocking arm (40) face the backsides of the projecting pieces (48). An operable portion (44) of the unlocking arm (40) is pressed to incline the unlocking arm (40) so that the unlocking pieces (49) lift the lock (35) of the lock arm (33), thereby canceling a locked state.
    Type: Grant
    Filed: December 6, 2004
    Date of Patent: April 25, 2006
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Kiyofumi Ichida, Yukihiro Fukatsu, Yukihiro Toyoda, Yasushi Okayasu
  • Publication number: 20060079110
    Abstract: A lock (35) is provided at the leading end of a resiliently deformable lock arm (33) on a female housing (20) and engages an engaging portion (14) on a male housing (10). An unlocking arm (40) is provided separate from the lock arm (33) and is resiliently inclinable like a seesaw. Projecting pieces (48) are formed on opposite surfaces of the lock (35) and unlocking pieces (49) on the unlocking arm (40) face the backsides of the projecting pieces (48). An operable portion (44) of the unlocking arm (40) is pressed to incline the unlocking arm (40) so that the unlocking pieces (49) lift the lock (35) of the lock arm (33), thereby canceling a locked state.
    Type: Application
    Filed: November 8, 2005
    Publication date: April 13, 2006
    Applicant: Sumitomo Wiring Systems, Ltd.
    Inventors: Kiyofumi Ichida, Yukihiro Fukatsu, Yukihiro Toyoda, Yasushi Okayasu
  • Publication number: 20060057881
    Abstract: A lock (35) is provided at the leading end of a resiliently deformable lock arm (33) on a female housing (20) and engages an engaging portion (14) on a male housing (10). An unlocking arm (40) is provided separate from the lock arm (33) and is resiliently inclinable like a seesaw. Projecting pieces (48) are formed on opposite surfaces of the lock (35) and unlocking pieces (49) on the unlocking arm (40) face the backsides of the projecting pieces (48). An operable portion (44) of the unlocking arm (40) is pressed to incline the unlocking arm (40) so that the unlocking pieces (49) lift the lock (35) of the lock arm (33), thereby canceling a locked state.
    Type: Application
    Filed: November 8, 2005
    Publication date: March 16, 2006
    Applicant: Sumitomo Wiring Systems, Ltd.
    Inventors: Kiyofumi Ichida, Yukihiro Fukatsu, Yukihiro Toyoda, Yasushi Okayasu
  • Patent number: 7001224
    Abstract: A connector has a housing (20) and a retainer (40) for locking terminal fittings in the housing (20). The retainer (40) has a main body (41) with locking sections (45) engageable with the terminal fittings when the retainer (40) is at a full locking position in the housing (20). Side plates (42) are provided at opposite lateral sides of the main body (41) for covering stepped outer side surfaces (29) of the housing (20). A locking claw (53) is provided at an upper end (42a) of each side plate (42) for engaging a holding portion (33) on the stepped surface (29). The retainer (40) can be held at the full locking position by engagement of the locking claws (53) and the holding portions (33). The housing (20) has protecting portions (35) that cover the upper ends (42a) of the side plates (42) from outer sides when the retainer (40) is at the full locking position.
    Type: Grant
    Filed: March 26, 2004
    Date of Patent: February 21, 2006
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Toshikazu Sakurai, Yukihiro Fukatsu
  • Patent number: 7001206
    Abstract: A male housing (70) has a receptacle (71) for receiving a female housing (20). An introducing surface (77) is formed around the inner front edge of the receptacle (71). A retainer (40) for locking female terminal fittings has an interfering portion (49) that interferes with the receptacle (71) when the retainer (40) is at an incomplete mount position IMP. The interfering portion (49) has a guiding surface (50) for guiding the interfering portion (49) into the receptacle (71) when the retainer (40) is a full locking position. The interfering portion (49) has contact surfaces (57) and the inner front edge of the receptacle (71) has receiving surfaces (79) at positions corresponding to the contact surfaces (57) and backward from the introducing surface (77). The receiving surfaces (79) can achieve surface contact with the contact surfaces (57).
    Type: Grant
    Filed: June 10, 2004
    Date of Patent: February 21, 2006
    Assignees: Sumitomo Wiring Systems, Ltd., Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Toshikazu Sakurai, Yukihiro Fukatsu, Satoshi Suda, Yoshiaki Kida, Masaru Shinmura
  • Publication number: 20060003631
    Abstract: A male housing (10) includes male terminal fittings (11), and a receptacle (12) for surrounding tabs (11a) of the male terminal fittings (11). A female housing (20) includes female terminal fittings (21) and a tubular fitting (29) fittable on the receptacle (12). Since preventing projections (32A, 32B, 32C) for preventing relative displacements of the receptacle (12) and the tubular fitting (29) by contacting the outer surface of the receptacle (12) are provided at the back end of the inner surface of the tubular fitting (29), an abrasion between the terminal fittings (11, 21) due to fine sliding movements resulting from the relative displacements of the two housings (10, 20) can be prevented.
    Type: Application
    Filed: July 5, 2005
    Publication date: January 5, 2006
    Applicant: Sumitomo Wiring Systems, Ltd.
    Inventors: Yukihiro Fukatsu, Yukihiro Toyoda, Kiyofumi Ichida
  • Patent number: 6981900
    Abstract: A terminal fitting (10) has a sidewall (14) and a stabilizer (30) is provided at the sidewall (14) for interfering with the entrance of a cavity (42) when the terminal fitting (10) upside down. The terminal fitting (10) has a posture-holding portion (35) at a sidewall (15) facing the stabilizer (30). The posture holding portion (35) contacts the inner wall of the cavity (42) if the terminal fitting (10) is mounted in a wrong posture. Thus, the terminal fitting (10) will not incline in the cavity (42). Accordingly a sufficient amount of interference of the stabilizer (30) with the edge is ensured, and erroneous insertion of the terminal fitting (10) is prevented.
    Type: Grant
    Filed: March 25, 2004
    Date of Patent: January 3, 2006
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Toshikazu Sakurai, Yukihiro Fukatsu
  • Patent number: 6976874
    Abstract: A male terminal fitting (10) can be inserted into a housing (30) and locked therein by a lock (35). A notch (21) is formed in an outer wall (18) of a substantially box-shaped main portion (12) of the terminal fitting (10) to permit entry of the lock (35). The lock (35) is engageable with the front cut end of the notch (21). A locking projection (22) engageable with the lock (35) is formed at the front cut end of the notch (21). A stabilizer (27) is provided at a side edge of the notch (21) for restricting catching of the rear edge of the locking projection (22).
    Type: Grant
    Filed: June 9, 2004
    Date of Patent: December 20, 2005
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Toshikazu Sakurai, Yukihiro Fukatsu
  • Patent number: 6953358
    Abstract: A female housing (10) has cavities (11) for receiving female terminal fittings (30). A lock (13) is provided in each cavity (11) and is deformed by insertion of the female terminal fitting (30). However the lock (13) is restored resiliently to engage and lock the female terminal fitting (30) in the cavity (11). Maneuverable recesses (24) are provided on the front surface of each lock (13) retracted from the locked terminal fitting (30). A disengagement jig (60) can be engaged with the maneuverable recesses (24) to deflect the lock (13) so that the terminal fitting (30) can be removed from the cavity (11).
    Type: Grant
    Filed: September 20, 2004
    Date of Patent: October 11, 2005
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Kiyofumi Ichida, Yukihiro Fukatsu, Toshikazu Sakurai, Shinya Fujita, Yuuichi Nankou, Hajime Kawase, Ryotaro Ishikawa, Naoya Kurimoto
  • Patent number: 6953366
    Abstract: A female housing (20) has cavities (21) for receiving female terminal fittings (10) and locks (27) for locking the female terminal fittings (10). Each lock (27) is deformed resiliently in the process of inserting the female terminal fitting (10), and is restored resiliently to lock the female terminal fitting (10) when the female terminal fitting (10) is inserted to a proper depth. A reinforcement (36) bulges out on a lower surface (31) of the lock (27) toward the deformation space (S) from a phantom line (L) connecting a front bending point (31b), which is a leading end position of the lock (27) with respect to a deforming direction when the lock (27) is deformed maximally, and a deformation supporting position (31c).
    Type: Grant
    Filed: October 25, 2004
    Date of Patent: October 11, 2005
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Yukihiro Fukatsu, Toshikazu Sakurai
  • Patent number: 6939171
    Abstract: A connector has a housing (10) with a cavity (11) and a resiliently deformable lock (13) for locking a female terminal fitting (30) in the cavity (11). The lock (13) has a base (25) and a projection (26) that projects into the cavity (11) from the base (25). Both side surfaces (25b) of the base (25) are formed by a mold that is moved forward to open, and notches (17a) are formed in the front surface of the female housing (10) by this mold. The notches (17a) extend more outward than inner side surfaces (11b) of the cavity (11) with respect to the widthwise direction. Both side surfaces (26c) of the projection (26) are formed by a mold moved backward to open. The projection (26) is narrower than the base (25).
    Type: Grant
    Filed: March 25, 2004
    Date of Patent: September 6, 2005
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Yukihiro Fukatsu, Toshikazu Sakurai
  • Publication number: 20050186842
    Abstract: A female housing (20) has a resiliently deformable lock arm (38), whereas a male housing (10) is provided with an interlocking portion (13). During the connection of the two housings (10, 20), the lock arm (38) is temporarily deformed while being held in sliding contact with the interlocking portion (13). When the two housings (10, 20) are properly connected, the lock arm (38) is restored resiliently to engage the interlocking portion (13). A front surface (14) of the interlocking portion (13) to face the lock arm (38) during a connecting process is arcuate. Thus, only a widthwise middle (14a) of the interlocking portion (13) slides in contact with the lock arm (38) during a connecting operation.
    Type: Application
    Filed: February 24, 2005
    Publication date: August 25, 2005
    Applicant: Sumitomo Wiring Systems, Ltd.
    Inventors: Yukihiro Fukatsu, Kiyofumi Ichida, Yukihiro Toyoda, Yasushi Okayasu
  • Publication number: 20050101196
    Abstract: A male housing (20) is provided with cavities (23) for inserting male terminal metal pieces (10) in two upper and lower stages and a retainer mounting hole (27) opening the respective cavities (230 in a lower direction and in two side directions. The retainer (40) is mounted movably and skewedly to a direction of inserting and drawing the male terminal metal piece (10) between a full locking position permitting to insert and draw the male terminal metal piece (10) and a regular locking position locked to the male terminal metal piece (10).
    Type: Application
    Filed: June 10, 2004
    Publication date: May 12, 2005
    Applicants: Sumitomo Wiring Systems, Ltd., HONDA MOTOR CO., LTD.
    Inventors: Yukihiro Fukatsu, Toshikazu Sakurai, Satoshi Suda, Yoshiaki Kida, Masaru Shinmura
  • Publication number: 20050095909
    Abstract: A male housing (20) has cavities (23) into which male terminal fittings (10) are insertable and locks (24) for locking the male terminal fittings (10) in the cavities (23). Each lock (24) is deformed temporarily resiliently during insertion of the male terminal fitting (10), and is restored resiliently to lock the male terminal fitting (10) when the male terminal fitting (10) reaches a proper depth. Lowered parts (35) of bottom walls (34) of the cavities (23) facing the locks (24) with deformation spaces (S) therebetween are provided at their portions coupled to the locks (24) with bulges (49) bulging toward the locks (24). Each bulge (49) is inclined such that a bulging distance thereof gradually increases toward the corresponding lock (24).
    Type: Application
    Filed: October 25, 2004
    Publication date: May 5, 2005
    Applicant: Sumitomo Wiring Systems, Ltd.
    Inventor: Yukihiro Fukatsu
  • Publication number: 20050090149
    Abstract: A female housing (20) has cavities (21) for receiving female terminal fittings (10) and locks (27) for locking the female terminal fittings (10). Each lock (27) is deformed resiliently in the process of inserting the female terminal fitting (10), and is restored resiliently to lock the female terminal fitting (10) when the female terminal fitting (10) is inserted to a proper depth. A reinforcement (36) bulges out on a lower surface (31) of the lock (27) toward the deformation space (S) from a phantom line (L) connecting a front bending point (31b), which is a leading end position of the lock (27) with respect to a deforming direction when the lock (27) is deformed maximally, and a deformation supporting position (31c).
    Type: Application
    Filed: October 25, 2004
    Publication date: April 28, 2005
    Applicant: Sumitomo Wiring Systems, Ltd.
    Inventors: Yukihiro Fukatsu, Toshikazu Sakurai