Patents by Inventor Akira Muramatsu
Akira Muramatsu 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: 7025606Abstract: A small wall part is formed at a determined position of a case body to protrude upwardly therefrom. The small wall part is provided with a locking piece at an upper end, and a circuit board is provided with a cut groove at a position corresponding to the small wall part. The small wall part is fitted into the cut groove when the circuit board is arranged inside the case body. A distal end of the AC cord which has entered into the case body through a slit formed in a side wall of the case body is divided into bifurcated portions, and the bifurcated portions are arranged to stride over the small wall part. The bundles at respective distal ends of the bifurcated portions are connected to a pattern of the circuit board.Type: GrantFiled: June 23, 2005Date of Patent: April 11, 2006Assignee: Funai Electric Co., Ltd.Inventor: Akira Muramatsu
-
Patent number: 7021681Abstract: A door lock device includes a latch mechanism, a lift lever, an open lever, a lock lever including a main lever and a sub lever mounted on the main lever so as to relatively rotate thereto, a biasing member disposed between the main lever and the sub lever, and an open member. When the open member is in the unlocked position, the open member engages with the lift lever by an operation of the open lever in one direction thereby allowing the lift lever operable. When the open member is in the locked position, the open member idly engages with the lift lever by the operation of the open lever and then becomes engaged with the lift lever in the other direction thereby prohibiting the lift lever operable when the open member is switched to the unlocked position from the locked position.Type: GrantFiled: May 27, 2003Date of Patent: April 4, 2006Assignee: Aisin Seiki Kabushiki KaishaInventors: Shigeru Hayakawa, Ryujiro Akizuki, Norio Konomoto, Katsutoshi Fukunaga, Akira Muramatsu, Makoto Suzumura, Takeshi Yasuda, Kan Ichihara
-
Patent number: 7004474Abstract: A seal for an endless track has a cross section having a centerline parallel to an axis of the seal and a configuration symmetric with respect to the centerline of the cross section. The seal can include an elastically deformably configured portion having a cross section like alphabetical letter X, and a protrusion extending from an intersection of legs of letter X in a bushing-side direction further than a plane connecting bushing-side end portions of the legs of letter X. The protrusion has an end surface where the protrusion contacts the bushing. The seal can further include an embedding portion embedded in a space between legs of letter X, on a bushing-side of the intersection of the legs of letter X.Type: GrantFiled: June 25, 2003Date of Patent: February 28, 2006Assignees: Topy Kogyo Kabushiki Kaisha, Nippon Valqua Industries, Ltd.Inventors: Kenichi Takahashi, Masaki Ohara, Akiyoshi Kurihara, Seiji Oomura, Noriyuki Andou, Takashi Konno, Hiromasa Muraki, Akira Muramatsu, Shunsuke Tanaka, Kouji Toriyama
-
Publication number: 20050287842Abstract: A small wall part is formed at a determined position of a case body to protrude upwardly therefrom. The small wall part is provided with a locking piece at an upper end, and a circuit board is provided with a cut groove at a position corresponding to the small wall part. The small wall part is fitted into the cut groove when the circuit board is arranged inside the case body. A distal end of the AC cord which has entered into the case body through a slit formed in a side wall of the case body is divided into bifurcated portions, and the bifurcated portions are arranged to stride over the small wall part. The bundles at respective distal ends of the bifurcated portions are connected to a pattern of the circuit board.Type: ApplicationFiled: June 23, 2005Publication date: December 29, 2005Inventor: Akira Muramatsu
-
Patent number: 6951355Abstract: A door lock system for a vehicle includes a latch mechanism, a link mechanism and a housing. The latch mechanism is adapted to a vehicle door and latches the vehicle door to a vehicle body. The link mechanism includes an electric driving source and a plurality of lever members for selectively locking and unlocking the latch mechanism. The housing accommodates the latch mechanism and the link mechanism.Type: GrantFiled: March 16, 2001Date of Patent: October 4, 2005Assignee: Aisin Seiki Kabushiki KaishaInventors: Shigeru Hayakawa, Hiroshi Ban, Norio Konomoto, Katsutoshi Fukunaga, Makoto Suzumura, Akira Muramatsu, Yasuhiko Sono
-
Patent number: 6945574Abstract: A door lock system for a vehicle includes a) a latch mechanism which is adapted to a vehicle door and which holds the vehicle door to a vehicle body, b) an open link which is engagable and disengagable with the latch mechanism, c) a swing lever which is connected to the open link, d) an electric driving source having a gear member, and e) a rotary gear member which is arranged between the swing lever and the electric driving source so as to be meshed with the gear member of the electric driving source. The rotary gear member is directly and engagably connected to the swing lever.Type: GrantFiled: March 16, 2001Date of Patent: September 20, 2005Assignee: Aisin Seiki Kabushiki KaishaInventors: Shigeru Hayakawa, Hiroshi Ban, Norio Konomoto, Katsutoshi Fukunaga, Makoto Suzumura, Akira Muramatsu, Yasuhiko Sono
-
Patent number: 6938446Abstract: A vehicle door lock apparatus includes a lever mechanism directly connected with a key cylinder provided at the outside door handle for locking and unlocking the vehicle door in response to rotation operation of the key cylinder. The lever mechanism is provided with a key rotor directly connected with the key cylinder, and a key lever directly connected with the key rotor. An input shaft of the lever mechanism formed by the key rotor is inclinable relative to an output shaft of the lever mechanism formed by the key lever, and this inclination is absorbed through the connection between the key rotor and the key lever.Type: GrantFiled: October 26, 2001Date of Patent: September 6, 2005Assignee: Aisin Seiki Kabushiki KaishaInventors: Katsutoshi Fukunaga, Makoto Suzumura, Ryujiro Akizuki, Norio Konomoto, Akira Muramatsu, Shigeru Hayakawa, Yasuhiko Sono
-
Publication number: 20050093215Abstract: A torsion spring assembling construction includes a base member including an engaging hole, a movable member rotatably supported at the base member and rotatable about an axis for defining a first position and a second position, a long hole formed at the movable member, a torsion spring, and a fixed guide for setting a second end of the torsion spring at the second hole by moving the second end of the torsion spring from the first hole to the second hole upon rotation of the movable member. A first end of the torsion spring is inserted into the engaging hole and a second end of the torsion spring is inserted into the long hole. The long hole includes a first hole extended diagonally radial direction relative to the axis and a second hole in communication with the first hole relative to the radially external direction.Type: ApplicationFiled: October 29, 2004Publication date: May 5, 2005Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Katsutoshi Fukunaga, Takashi Nishio, Sigeru Tanabe, Akira Muramatsu
-
Publication number: 20050023840Abstract: A door lock device includes a latch mechanism selectively engaging with a striker, an open unit operating at a plane surface perpendicular to one direction for transmitting an opening operational force from a vehicle inside and from a vehicle outside to operate the latch mechanism from an engaged state with the striker to the disengaged state from the striker, and a lock unit operating at a plane surface perpendicular to said one direction for transmitting an operational force to the open unit for operating the open unit to be an unlocked state for transmitting the opening operational force to the latch mechanism and a locked state not for transmitting the opening operational force to the latch mechanism.Type: ApplicationFiled: February 13, 2004Publication date: February 3, 2005Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Katsutoshi Fukunaga, Makoto Suzumura, Shigehiro Oya, Akira Muramatsu, Yukinobu Kunimatsu
-
Publication number: 20040262928Abstract: A door lock device for vehicle includes a latch mechanism adapted to be a vehicle door at an inner space of the vehicle door for holding the vehicle door in closing condition against a vehicle body and sifted between an engaging condition and a disengaging condition, a link mechanism for shifts the latch mechanism from the engaging condition to the disengaging condition by an operation of a door handle mechanism which includes a handle member and a frame member arranged in the inner space of the vehicle door for supports the handle member to the vehicle door and connection means for detachably connected with the frame member of the door handle mechanism.Type: ApplicationFiled: May 26, 2004Publication date: December 30, 2004Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Katsutoshi Fukunaga, Makoto Suzumura, Shigehiro Oya, Akira Muramatsu, Yukinobu Kunimatsu
-
Publication number: 20040262927Abstract: A door lock device includes a latch mechanism engageable with or disengageable from a striker, an open unit transmitting an opening operation force to the latch mechanism for disengaging the latch mechanism from the engagement with the striker, a lock unit transmitting locking and unlocking operation forces to the open unit for operating the open unit between an unlocking condition where the opening operation force is transmittable to the latch mechanism and a locking condition where the opening operation force is not transmittable to the latch mechanism, an actuator for outputting the locking and unlocking operation forces. The door lock device further includes a housing for storing the latch mechanism, the open unit, the lock unit and the actuator as a unit, and a case provided within the housing for accommodating at least the actuator.Type: ApplicationFiled: January 30, 2004Publication date: December 30, 2004Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Katsutoshi Fukunaga, Makoto Suzumura, Shigehiro Oya, Akira Muramatsu, Yukinobu Kunimatsu, Takashi Nishio, Shigeru Tanabe
-
Publication number: 20040189016Abstract: A torque transmitting member, rotating around a first rotation center for transmitting a torque from a driving source to an output side member for rotating the output side member from a first position to a second position around a second rotation center differentiated from the first rotation center, includes a convex portion provided at a portion between the first rotation center and the second rotation center different from the first rotation center, the convex portion including a configuration extended in a radial direction and having an outer surface, and a contacting portion formed at the outer surface of the convex portion at the closest position to the first rotation center for always contacting the output side member at a predetermined position within a predetermined angle defined by a rotation of the output side member from the first position to the second position.Type: ApplicationFiled: December 23, 2003Publication date: September 30, 2004Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Katsutoshi Fukunaga, Makoto Suzumura, Shigehiro Oya, Akira Muramatsu, Yukinobu Kunimatsu
-
Publication number: 20040182122Abstract: A latch mechanism includes a first base plate, a second base plate facing to the first base plate and having a first base portion, a second base portion, and a recess provided between the first base portion and the second base portion. The latch mechanism further includes a latch rotating relative to a first shaft supported by the first base plate and the first base portion and including an arm portion extending from the first base portion side toward the second base portion side when positioned in a predetermined rotating position thereof, a pawl rotating relative to a second shaft supported by the first base plate and the second base plate, and engaging with the arm portion when the latch is in the predetermined rotating position, and a connecting member connecting the first base plate with the second base plate, and provided at the second shaft side relative to a base line extending along the arm portion when the latch is in the predetermined rotating position.Type: ApplicationFiled: December 23, 2003Publication date: September 23, 2004Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Katsutoshi Fukunaga, Makoto Suzumura, Shigehiro Oya, Akira Muramatsu, Yukinobu Kunimatsu
-
Publication number: 20040154362Abstract: A vehicle door operating apparatus operated for opening a vehicle door, comprises an opening operation member provided at the vehicle door outside of a compartment and operated for rotating a latch mechanism of the vehicle door relative to a vehicle body from an engaging condition to a disengaging condition, and a vehicle door lock apparatus provided inside of the compartment relative to the opening operation member of the vehicle door and having an unlocked condition that the latch mechanism is rotatable and a locked condition that the latch mechanism is not rotatable based on at least an operation of the opening operation member. The vehicle door operating apparatus further includes an input member provided at the vehicle door lock apparatus for receiving an operating force from the opening operation member provided inside of the compartment, and a cable provided for transmitting the operating force from the opening operation member to the input member.Type: ApplicationFiled: November 25, 2003Publication date: August 12, 2004Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Katsutoshi Fukunaga, Makoto Suzumura, Shigehiro Oya, Akira Muramatsu, Yukinobu Kunimatsu
-
Publication number: 20040119296Abstract: A door lock device includes a latch mechanism, a lift lever, an open lever, a lock lever, an open member including a link member having an operation input portion connected to the open lever and an acting portion engageable with the lift lever, and an elastic member connecting the link member and the lock lever. When the open member is in the unlocked position, the open member engages with the lift lever by an operation of the open lever in one direction thereby allowing an operation of the lift lever. When the open member is in the locked position, the open member idly engages with the lift lever by the operation of the open lever and then becomes engaged with the lift lever in the other direction thereby prohibiting the operation of the lift lever when the open member is switched to the unlocked position from the locked position.Type: ApplicationFiled: July 29, 2003Publication date: June 24, 2004Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Shigeru Hayakawa, Ryujiro Akizuki, Kan Ichihara, Norio Konomoto, Akira Muramatsu, Takeshi Yasuda
-
Publication number: 20040113437Abstract: A door lock device includes a latch mechanism provided at a vehicle door and engageable with or disengageable from a striker provided at a vehicle body, a lift lever for operating the latch mechanism from an engaged state to a disengaged state by engaging with or disengaging from the striker, an open lever movable from an initial position to an operating position by operation of a door opening member provided at the vehicle door, and a lock lever movable between an unlocked position and a locked position by operation of a door locking/unlocking member provided at the vehicle door. The door lock device further includes an open member and a biasing member.Type: ApplicationFiled: October 17, 2003Publication date: June 17, 2004Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Shigeru Hayakawa, Makoto Suzumura, Akira Muramatsu, Katsutoshi Fukunaga, Kan Ichihara, Yukinobu Kunimatsu
-
Publication number: 20040036298Abstract: A door lock device includes a latch mechanism, a lift lever, an open lever, a lock lever including a main lever and a sub lever mounted on the main lever so as to relatively rotate thereto, a biasing member disposed between the main lever and the sub lever, and an open member. When the open member is in the unlocked position, the open member engages with the lift lever by an operation of the open lever in one direction thereby allowing the lift lever operable. When the open member is in the locked position, the open member idly engages with the lift lever by the operation of the open lever and then becomes engaged with the lift lever in the other direction thereby prohibiting the lift lever operable when the open member is switched to the unlocked position from the locked position.Type: ApplicationFiled: May 27, 2003Publication date: February 26, 2004Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Shigeru Hayakawa, Ryujiro Akizuki, Norio Konomoto, Katsutoshi Fukunaga, Akira Muramatsu, Makoto Suzumura, Takeshi Yasuda, Kan Ichihara
-
Publication number: 20040007833Abstract: A seal for an endless track has a cross section having a centerline parallel to an axis of the seal and a configuration symmetric with respect to the centerline of the cross section. The seal can include an elastically deformably configured portion having a cross section like alphabetical letter X, and a protrusion extending from an intersection of legs of letter X in a bushing-side direction further than a plane connecting bushing-side end portions of the legs of letter X. The protrusion has an end surface where the protrusion contacts the bushing. The seal can further include an embedding portion embedded in a space between legs of letter X, on a bushing-side of the intersection of the legs of letter X.Type: ApplicationFiled: June 25, 2003Publication date: January 15, 2004Applicants: TOPY KOGYO KABUSHIKI KAISHA, NIPPON VALQUA INDUSTRIES, LTD.Inventors: Kenichi Takahashi, Masaki Ohara, Akiyoshi Kurihara, Seiji Oomura, Noriyuki Andou, Takashi Konno, Hiromasa Muraki, Akira Muramatsu, Shunsuke Tanaka, Kouji Toriyama
-
Patent number: 6634682Abstract: A vehicle door lock apparatus includes a first body and a second body integrated so as to be adapted to be integrally assembled to the door. The vehicle door lock apparatus further includes guide projections formed at one of the first and second bodies, and guide grooves formed at the other of the first and second bodies. In addition, a stopper is provided for preventing the separation of integrated first and second bodies by the engagement between the guide projections and the guide grooves.Type: GrantFiled: October 26, 2001Date of Patent: October 21, 2003Assignee: Aisin Seiki Kabushiki KaishaInventors: Katsutoshi Fukunaga, Makoto Suzumura, Ryujiro Akizuki, Norio Konomoto, Akira Muramatsu, Shigeru Hayakawa, Yasuhiko Sono
-
Patent number: 6575506Abstract: A door lock system for a vehicle includes a latch mechanism, an open link, an inside lever and a cancel lever. The latch mechanism is adapted to a vehicle door and latches the vehicle door to a vehicle body. The open link is engagable and disengagable with the latch mechanism. The inside lever is adapted to an inside handle of the vehicle door and is engagable with the open link. The cancel lever is connected to the open link and is arranged between the inside lever and the open link so as to be engagable with the inside lever when the open link is disengaged from the latch mechanism.Type: GrantFiled: March 16, 2001Date of Patent: June 10, 2003Assignee: Aisin Seiki Kabushiki KaishaInventors: Shigeru Hayakawa, Hiroshi Ban, Norio Konomoto, Katsutoshi Fukunaga, Makoto Suzumura, Akira Muramatsu, Yasuhiko Sono