Patents by Inventor Masataka Mizuno
Masataka Mizuno 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: 20230122604Abstract: To reduce concern of separation due to a user's unintended application of a load. A joined body of a first structure member having a frame-like structure and a second structure member joined to an inside of the first structure member, wherein the first structure member has a protruding portion in which an anchor shape is formed, the second structure member has a hole portion that comes into contact with the protruding portion of the first structure member, and the protruding portion has a stress concentration portion on which stress concentrates when a load is applied to the second structure member.Type: ApplicationFiled: October 14, 2022Publication date: April 20, 2023Applicant: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHOInventors: Yusuke TAGUCHI, Masataka MIZUNO
-
Patent number: 10478966Abstract: A workpiece support system includes: a workpiece support device that supports a workpiece by a support body having a support that comes in contact with the workpiece; and a robot that is separately provided outside the workpiece support device and moves the support, wherein the support is configured to be movable within a predetermined range and lockable at an arbitrary position, and wherein, by grasping a part of the locked support body, the robot unlocks the support and moves the unlocked support according to the shape of the workpiece.Type: GrantFiled: November 30, 2016Date of Patent: November 19, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tomohiko Sekiguchi, Masataka Mizuno, Kazuyuki Ogusu, Kenichi Asakuma, Kimihiro Nanaeda
-
Publication number: 20170157765Abstract: A workpiece support system includes: a workpiece support device that supports a workpiece by a support body having a support that comes in contact with the workpiece; and a robot that is separately provided outside the workpiece support device and moves the support, wherein the support is configured to be movable within a predetermined range and lockable at an arbitrary position, and wherein, by grasping a part of the locked support body, the robot unlocks the support and moves the unlocked support according to the shape of the workpiece.Type: ApplicationFiled: November 30, 2016Publication date: June 8, 2017Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tomohiko SEKIGUCHI, Masataka MIZUNO, Kazuyuki OGUSU, Kenichi ASAKUMA, Kimihiro NANAEDA
-
Patent number: 8539656Abstract: The invention provides a fastening method and a fastening tool which can stably fasten a nut to a bolt securely and with a small dispersion at a desired axial force. A fastened member is fastened by inserting a bolt to the fastened member, thereafter temporarily fastening a nut and the bolt, pulling a leading end of a shaft portion of the bolt in an axial direction of the bolt, rotating the nut so as to screw into the bolt while elastically deforming the bolt so as to generate an axial force, and thereafter canceling the pulling of the bolt.Type: GrantFiled: September 19, 2011Date of Patent: September 24, 2013Assignee: Aoyama Seisakusho Co., Ltd.Inventors: Keigo Katou, Masataka Mizuno, Yoshio Hirooka
-
Patent number: 8533931Abstract: The invention includes a fastening method and a fastening tool which can stably fasten a nut to a bolt securely and with a small dispersion at a desired axial force. A fastened member is fastened by inserting a bolt through the fastened member, thereafter temporarily positioning a nut and the bolt together, pulling a leading end of a shaft portion of the bolt in an axial direction of the bolt, rotating the nut so as to screw the nut into the bolt while elastically deforming the bolt so as to generate an axial force, and thereafter canceling the pulling of the bolt.Type: GrantFiled: December 13, 2007Date of Patent: September 17, 2013Assignee: Aoyama Seisakusho Co., Ltd.Inventors: Keigo Katou, Masataka Mizuno, Yoshio Hirooka
-
Publication number: 20120011969Abstract: The invention provides a fastening method and a fastening tool which can stably fasten a nut to a bolt securely and with a small dispersion at a desired axial force. A fastened member is fastened by inserting a bolt to the fastened member, thereafter temporarily fastening a nut and the bolt, pulling a leading end of a shaft portion of the bolt in an axial direction of the bolt, rotating the nut so as to screw into the bolt while elastically deforming the bolt so as to generate an axial force, and thereafter canceling the pulling of the bolt.Type: ApplicationFiled: September 19, 2011Publication date: January 19, 2012Applicant: Aoyama Seisakusho Co., Ltd.Inventors: Keigo KATOU, Masataka Mizuno, Yoshio Hirooka
-
Publication number: 20080148545Abstract: The invention provides a fastening method and a fastening tool which can stably fasten a nut to a bolt securely and with a small dispersion at a desired axial force. A fastened member (20) is fastened by inserting a bolt (21) to the fastened member (20), thereafter temporarily fastening a nut (22) and the bolt (21), pulling a leading end (21b) of a shaft portion (21c) of the bolt (21) in an axial direction of the bolt (21), rotating the nut (22) so as to screw into the bolt (21) while elastically deforming the bolt (21) so as to generate an axial force, and thereafter canceling the pulling of the bolt (21).Type: ApplicationFiled: December 13, 2007Publication date: June 26, 2008Applicant: Aoyama Seisakusho Co., Ltd.Inventors: Keigo Katou, Masataka Mizuno, Yoshio Hirooka
-
Patent number: 6675477Abstract: A spool valve is provided which has a plurality of small-diameter portions formed at predetermined spacings on a peripheral surface of a shaft, and pairs of annular ridges on peripheral surfaces of the small-diameter portions to have a larger diameter than an inner diameter of collars. The collars are closely fitted between the annular ridges to make valve bodies, and the collars include an inner wall, an outer wall and at least one connection therebetween, and an annular gap is provided between the inner wall and the outer wall.Type: GrantFiled: November 21, 2002Date of Patent: January 13, 2004Assignee: Aoyama Seisakusho Co., Ltd.Inventors: Keigo Kato, Masataka Mizuno
-
Publication number: 20030070296Abstract: A spool valve is provided which has a plurality of small-diameter portions formed at predetermined spacings on a peripheral surface of a shaft, and pairs of annular ridges on peripheral surfaces of the small-diameter portions to have a larger diameter than an inner diameter of collars. The collars are closely fitted between the annular ridges to make valve bodies, and the collars include an inner wall, an outer wall and at least one connection therebetween, and an annular gap is provided between the inner wall and the outer wall.Type: ApplicationFiled: November 21, 2002Publication date: April 17, 2003Applicant: Aoyama Seisakusho Co., Ltd.Inventors: Keigo Kato, Masataka Mizuno
-
Publication number: 20030046696Abstract: The present invention was accomplished in order to provide broadcast terminal equipment and an information supply system, with which the convenience of a viewer can be improved by preparing a program list in which favorite programs of the viewer can be easily found out and automatically recording the viewer's favorite programs with the utilization of the viewer's watching program data, and moreover, a variety of information and services can be provided by making use of the viewer's watching program data with taking advantage of an interactive function, comprising a viewer's program data storage device to store program data related to programs a viewer watched, an each viewer's program list preparing device to prepare a favorite program list of the viewer based on the program data stored in the viewer's program data storage device, a favorite program detecting device to detect a program which fits into the favorite program list of the viewer prepared by the each viewer's program list preparing device in a progType: ApplicationFiled: September 4, 2002Publication date: March 6, 2003Inventors: Masataka Mizuno, Shuuichi Tsukamoto, Tatsuo Itou, Naoto Matsushita, Minoru Maehata, Makoto Asakura
-
Patent number: 6520210Abstract: A spool valve is provided which has a plurality of small-diameter portions formed at predetermined spacings on a peripheral surface of a shaft, and pairs of annular ridges on peripheral surfaces of the small-diameter portions to have a larger diameter than an inner diameter of collars. The collars are closely fitted between the annular ridges to make valve bodies, and the collars include an inner wall, an outer wall and at least one connection therebetween, and an annular gap is provided between the inner wall and the outer wall.Type: GrantFiled: June 7, 2001Date of Patent: February 18, 2003Assignee: Aoyama Seisakusho Co., Ltd.Inventors: Keigo Kato, Masataka Mizuno
-
Publication number: 20020184976Abstract: A threaded fastener formed on the middle of a head thereof comprises a concave or convex drive shape adapted to engage with a clamping tool. The drive shape comprises projections equiangularly spaced from one another to extend radially from an axis of the threaded fastener, curved portions formed between the projections to dent toward the axis, and drive surfaces formed between the projections and the curved portions. Clamping forces acting on the drive surfaces are directed toward substantially perpendicular to a straight line passing through the axis and apices of the projections.Type: ApplicationFiled: June 3, 2002Publication date: December 12, 2002Applicant: Aoyama Seisakusho Co., Ltd.Inventors: Masataka Mizuno, Atsushi Kato, Yasuhiro Tsuchiya
-
Publication number: 20020131839Abstract: This invention relates to a bolt comprising a bolt shank formed at an outer peripheral surface thereof with external threads, and a nut formed at an inner peripheral surface thereof with internal threads, comprising a latch means for latching the nut with the bolt shank, which is provided on at least one of the bolt shank and the nut, the nut being separatable from the bolt shank and capable of being screwed onto the bolt shank, wherein the nut is movable relative to the bolt shank in a state of being screwed onto the bolt shank, when a larger torque than a predetermined torque is applied to the nut while the latch means latches the nut with the bolt shank.Type: ApplicationFiled: March 11, 2002Publication date: September 19, 2002Applicant: Aoyama Seisakusho Co., Ltd.Inventors: Shinichi Kondo, Junzo Ozawa, Masataka Mizuno, Kazutaka Aoyama
-
Publication number: 20020013178Abstract: The present invention relates to a reciprocating type thread rolling apparatus and comprises a ram reciprocated by a crank shaft and fixing to one side thereof at least two moving dies, the other side of the ram being disposed along a single thread rolling pressure bearing block, and stationary dies adapted to pair with the moving dies for thread rolling, the stationary dies being the same in number as that of the moving dies and disposed to be opposite to the moving dies.Type: ApplicationFiled: June 7, 2001Publication date: January 31, 2002Applicant: Aoyama Seisakusho Co., Ltd.Inventors: Keigo Kato, Masataka Mizuno, Atsushi Kato, Naoshige Taniguchi
-
Publication number: 20010052369Abstract: The present invention relates to a spool valve having a plurality of small-diameter portions formed at predetermined spacings on a peripheral surface of a shaft, and pairs of annular ridges on peripheral surfaces of the small-diameter portions to have a larger diameter than an inner diameter of collars, the collars being closely fitted between the annular ridges to make valve bodies, wherein the collars comprise an inner wall, an outer wall and at least one connection therebetween, and an annular gap is provided between the inner wall and the outer wall.Type: ApplicationFiled: June 7, 2001Publication date: December 20, 2001Applicant: Aoyama Seisakusho Co., Ltd.Inventors: Keigo Kato, Masataka Mizuno
-
Patent number: 6202283Abstract: A method of manufacturing a shaft having modified surfaces. The method comprises forming thread grooves on surfaces of a cylindrical-shaped base material for a shaft, continuously winding a length of wire in and along the thread grooves, and compressing a peripheral surface of the base material for the shaft with the length of wire wound and received in the thread grooves, in a direction of diameter reduction to perform plastic deformation of crests of thread ridges between the adjacent thread grooves or the crests and the wire to have the length of wire being fixed to and united with the base material for the shaft. The method improves the hardness of surfaces of a base material for a shaft in a relatively simple manner, and transforms properties of surfaces of the base material for a shaft to make the base material for the shaft applicable to other uses.Type: GrantFiled: May 26, 1999Date of Patent: March 20, 2001Assignee: Aoyama Seisakusho Co., Ltd.Inventors: Keigo Kato, Masataka Mizuno
-
Patent number: 6089068Abstract: A method of manufacturing a shaft having below a surface thereof a flow passage, through which a fluid can flow, includes a preliminary step of forming in a surface of a columnar-shaped base material grooves having a substantially U-shaped cross section, and a finishing step of compressing crests of thread ridges between the adjacent thread grooves in a direction, in which the base material is reduced in diameter, to perform plastic deformation and join the deformed crests to one another to form a spiral-shaped, closed space which communicates the spaces in the thread grooves.Type: GrantFiled: May 26, 1999Date of Patent: July 18, 2000Assignee: Aoyama Seisakusho Co., Ltd.Inventors: Keigo Kato, Masataka Mizuno
-
Patent number: 6061906Abstract: A process for manufacturing a spool valve whereby a plurality of quenching processed collars are fitted to a shaft material so that the collars are arranged at predetermined positions on the shaft material. The collars have respective substantially central holes through which the shaft material extends. The diameter of portions of the shaft material is contracted in a vicinity of both opposite ends of each of the collars by rolling dies so as to cause plastic flow of a metal constituting the shaft material. Pairs of circular convex portions are then formed on outer circumferential faces of the diameter contracted portions of the shaft material.Type: GrantFiled: April 28, 1998Date of Patent: May 16, 2000Assignee: Aoyama Seisakusho Co., Ltd.Inventors: Keigo Kato, Masataka Mizuno
-
Patent number: 5782268Abstract: A spool valve includes a shaft having plural small diameter portions formed at intervals along the shaft on a circumferential surface of the shaft. The small diameter portions have linear outer surfaces extending substantially parallel to an axis of the shaft. A collar to be mounted to the shaft has a substantially central hole defining an inner diameter of the collar and through which the shaft is passable for mounting the collar to the shaft. The collar has a length shorter than a length of the small diameter portions of the shaft, and a linear inner surface extending substantially parallel to the axis of the shaft and the linear outer surfaces of the small diameter portions. A pair of circular convex portions are integrally formed on outer circumferential faces of a corresponding one of the small diameter portions.Type: GrantFiled: January 13, 1997Date of Patent: July 21, 1998Assignee: Aoyama Seisakusho Co., Ltd.Inventors: Keigo Kato, Masataka Mizuno
-
Patent number: 4506266Abstract: An antenna for a vehicle-mounted receiver/transmitter includes: a driver for extending and retracting an antenna connected to the receiver/transmitter; a selector for selecting a frequency to be received and/or transmitted by the receiver/transmitter; and a controller which operates in response to an output from the frequency selector for causing the driver to extend and retract the antenna by the length corresponding to the frequency, and for retracting almost the entire antenna into the body of the vehicle when the receiver/transmitter is not operating.Type: GrantFiled: October 21, 1982Date of Patent: March 19, 1985Assignee: Fujitsu Ten LimitedInventors: Masataka Mizuno, Tatsuo Ito, Shuji Sugawara, Masakazu Moriyama, Masahito Muto, Shuji Nakane