Patents by Inventor Yuji Shishido

Yuji Shishido 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: 20080180911
    Abstract: Provided is a fan motor apparatus. The fan motor apparatus includes a rotor and a stator. The rotor includes a blade. The stator includes a rotor supporting mechanism, a supporting member, and a vibration insulation member. The rotor supporting mechanism rotatably supports the rotor. The supporting member supports the rotor supporting mechanism. The vibration insulation member is provided between the rotor supporting mechanism and the supporting member. The stator is capable of regulating relative movement of the rotor supporting mechanism and the supporting member.
    Type: Application
    Filed: January 22, 2008
    Publication date: July 31, 2008
    Applicant: SONY CORPORATION
    Inventors: Sachiko Kaneko, Yuji Shishido, Takashi Mochida, Hideo Niikura, Atsushi Kikuchi, Makoto Chiyoda
  • Publication number: 20080141290
    Abstract: An automatic balancing apparatus includes a fluid balancer; a holding member for holding the balancer by generating a surface tension on the balancer; and a rotatably provided housing member housing the balancer and the holding member so that the balancer held by the holding member on its inner circumferential side moves toward an outer circumferential side of the housing member by centrifugal force caused by rotation.
    Type: Application
    Filed: April 18, 2005
    Publication date: June 12, 2008
    Applicant: Sony Corporation
    Inventors: Yuji Shishido, Takashi Mochida, Yoshihiro Abe
  • Patent number: 7381034
    Abstract: A hydrodynamic pressure bearing type pump includes a main body having a fluid flow inlet formed at one end portion thereof and a fluid flow outlet formed at the other end portion thereof and a rotating portion disposed within a fluid flow passage of the fluid within the main body to generate hydrodynamic pressure to let the fluid flow into the fluid flow inlet and to let the fluid flow from the fluid flow outlet to the outside. The rotating portion includes a shaft, a hydrodynamic pressure bearing for generating hydrodynamic pressure to let the fluid flow into the fluid flow inlet and to let the fluid flow from the fluid flow outlet to the outside when the shaft is rotated and a rotation force generating portion disposed within the main body to generate rotation force for rotating the shaft when it is energized.
    Type: Grant
    Filed: December 24, 2003
    Date of Patent: June 3, 2008
    Assignee: Sony Corporation
    Inventor: Yuji Shishido
  • Patent number: 7381027
    Abstract: A fan motor having a small thickness and its impeller's blades formed to have a longer length in the diametrical direction than a width in the axial direction. Since the blade of the fan motor has a tooth structure or chamfers at its edge end in the diametrical direction, turbulence is forcibly evoked in an airflow to promote the turbulent diffusion, thereby suppressing the trailing vortex and reducing the aerodynamic noises, and thus the ventilation efficiency is improved.
    Type: Grant
    Filed: May 18, 2004
    Date of Patent: June 3, 2008
    Assignee: Sony Corporation
    Inventors: Sachiko Kaneko, Yuji Shishido, Toshio Hashimoto, Tooru Kimura
  • Publication number: 20080095022
    Abstract: An automatic balancing apparatus is disclosed. The automatic balancing apparatus includes a housing, magnetic fluid, and a plurality of balancers. The housing is rotatable. The magnetic fluid is contained in the housing. Each of the plurality of balancers is movable in the housing and has a magnet and a yoke which is mounted thereto and which has a raised portion or a depressed portion formed on an inner circumferential side of a rotation of the housing.
    Type: Application
    Filed: October 23, 2007
    Publication date: April 24, 2008
    Applicant: SONY CORPORATION
    Inventors: Rikuhiro Hanai, Takashi Mochida, Yuji Shishido
  • Publication number: 20080036319
    Abstract: Herein disclosed a bearing unit including: a dynamic pressure fluid bearing adapted to receive a rotary shaft inserted thereinto; a unit main body surrounding the outside of the fluid bearing; a lid member covering an upper opening of the unit main body with the rotary shaft inserted into the dynamic fluid bearing; lubricating oil poured into the unit main body; and an oil thrower ring rotating together with the rotary shaft in a space defined between an upper end of the fluid bearing and the lid member; wherein a gap defined between the lid member and the oil thrower ring is tapered in cross-section so as to be progressively reduced in the distance therebetween as the gap is spaced apart from the center of the rotary shaft.
    Type: Application
    Filed: August 1, 2007
    Publication date: February 14, 2008
    Applicant: SONY CORPORATION
    Inventors: Makoto Chiyoda, Yuji Shishido
  • Publication number: 20070280570
    Abstract: A bearing unit includes: a radial bearing for bearing in a circumferential direction of a shaft; a thrust bearing for bearing one end in a thrust direction of the shaft; a housing provided on the outside of the radial bearing and the thrust bearing and filled with a viscous fluid; a seal member united with the housing so as to contain the radial bearing and the thrust bearing in a sealed state, the seal member having a shaft passing hole through which the shaft is passed; and a passage for discharging air present inside the housing, the passage formed between the housing and the radial bearing, and the passage providing communication between the one end side and the other end side in the thrust direction of the shaft projecting from the radial bearing, wherein the cross-sectional shape of the passage is a shape including at least one acute angle.
    Type: Application
    Filed: June 5, 2007
    Publication date: December 6, 2007
    Applicant: SONY CORPORATION
    Inventors: Yuji Shishido, Kenichiro Yazawa, Makoto Chiyoda
  • Publication number: 20070253652
    Abstract: A bearing unit wherein a radial bearing for bearing a shaft in the circumferential direction of the shaft and a metallic housing provided with an attaching section are integrated with each other by molding, a resin molded body formed by the molding is so formed as to sealingly contain the radial bearing therein and is provided on one end side in the axial direction thereof with a shaft passing hole through which to pass the shaft, and the inside of the resin molded body is filled with a viscous fluid, whereby the viscous fluid such as a lubricating oil can be prevented from leaking, and the bearing unit can be attached to an object easily and assuredly.
    Type: Application
    Filed: January 9, 2007
    Publication date: November 1, 2007
    Applicant: Sony Corporation
    Inventors: Yuji Shishido, Makoto Chiyoda, Ichiro Nakamura
  • Publication number: 20070212211
    Abstract: A cross flow fan apparatus is provided. The cross flow fan apparatus includes an impeller having a plurality of blades extending in a predetermined direction, a motor, having a rotating shaft provided along the predetermined direction, which drives to rotate the impeller and a supporting body which supports the motor such that the impeller is cantilevered by the rotating shaft.
    Type: Application
    Filed: March 6, 2007
    Publication date: September 13, 2007
    Applicant: SONY CORPORATION
    Inventors: Makoto Chiyoda, Yuji Shishido, Takashi Mochida
  • Patent number: 7258487
    Abstract: The bearing unit of the present invention has: a shaft; a radial bearing which supports the shaft in a circumferential direction of the shaft; a thrust bearing which supports an end of the shaft in a thrust direction of the shaft; a housing having a closed structure except for a shaft insertion hole in which the shaft is inserted, with the radial bearing and the thrust bearing being provided inside the housing; a stopper member which prevents the shaft from being pulled out of the radial bearing; and viscous liquid filled in the housing. The stopper member is made of an elastic member which is elastically deformed only in the radial direction and is hardly deformed in the axial direction. Hence, the shaft is prevented from being pulled out from the housing, and shortage of the lubrication oil around bearing surfaces is prevented from being caused by lifting of the shaft.
    Type: Grant
    Filed: January 25, 2005
    Date of Patent: August 21, 2007
    Assignee: Sony Corporation
    Inventors: Kenichiro Yazawa, Takeshi Kaneko, Yoshiaki Kakinuma, Yuji Shishido
  • Publication number: 20070183699
    Abstract: A bearing unit includes: a radial bearing for bearing a shaft in the circumferential direction of the shaft; a first housing member provided on the outer periphery side and on one end side in the axial direction of the radial bearing and operative to hold the radial bearing; and a second housing member provided on the outer periphery side of the first housing member and on the other end side in the axial direction of the radial bearing, wherein the first and second housing members are united by a screw part provided on the outer periphery side of the first housing member and a screw part provided on the inner periphery side of the second housing, so as to sealingly contain the radial bearing, with a shaft passage hole provided on one end side or the other end side in the axial direction so as to permit the shaft to pass therethrough; and the inside of the united first and second housing members is filled with a viscous fluid.
    Type: Application
    Filed: January 29, 2007
    Publication date: August 9, 2007
    Applicant: Sony Corporation
    Inventor: Yuji Shishido
  • Patent number: 7245563
    Abstract: An objective lens drive device (8) includes a supporting block (9), a movable block (10) for holding an objective lens (27), and supporting springs (22) for connecting the supporting block and the movable block. Elements of the supporting block of the objective lens drive device (8) are a stationary section (11), a supporting shaft (12), a tilt drive section (13), and tilt drive magnetic circuits (20 and 20). The stationary section (11) is secured to a movable base (7) that is movable in radial directions of a disc-shaped recording medium (100). An axial direction of the supporting shaft (12) is perpendicular to both focusing directions and tracking directions. The tilt drive section (13) is rotatably supported at the stationary section through the supporting shaft and is connected to the movable block through the supporting springs. The tilt drive magnetic circuits (20 and 20) are used to rotate the tilt drive section with respect to the stationary section.
    Type: Grant
    Filed: April 8, 2003
    Date of Patent: July 17, 2007
    Assignee: Sony Corporation
    Inventors: Hidetoshi Tanaka, Yuji Shishido, Hiroshi Kawamura
  • Publication number: 20070144010
    Abstract: A method of manufacturing dynamic pressure bearing member is provided. A method of manufacturing a dynamic pressure bearing member, by providing a metal mold die including a core pin provided with protruding stripes of a predetermined shape formed on an outer peripheral surface for forming dynamic pressure grooves, and injecting molten resin in the metal mold die to form at least a series of dynamic pressure grooves on an inner peripheral surface with a circular cross-section in an inner circumferential direction, includes the step of pulling out in a forced pullout manner one of the core pin from the dynamic pressure bearing member or the dynamic pressure bearing member from the core pin in an axial direction of the dynamic pressure bearing member after curing the molten resin, in a condition in which a free space is provided around an outer periphery of the molded dynamic pressure bearing member.
    Type: Application
    Filed: December 19, 2006
    Publication date: June 28, 2007
    Applicant: SONY CORPORATION
    Inventors: Hiroshi Sato, Yuji Shishido, Takeshi Kaneko, Kenichiro Yazawa, Yoshiaki Kakinuma
  • Publication number: 20070150910
    Abstract: An automatic balancing apparatus is disclosed. The automatic balancing apparatus includes a plurality of magnets, magnetic fluid, and a rotatable housing. The magnets function as balancers. The rotatable housing has a moving path disposed along a peripheral direction of the rotation. Each of the magnets is moved through the moving path. The rotatable housing accommodates the magnets and the magnetic fluid.
    Type: Application
    Filed: November 20, 2006
    Publication date: June 28, 2007
    Applicant: Sony Corporation
    Inventors: Yuji Shishido, Takashi Mochida, Rikuhiro Hanai
  • Publication number: 20070140604
    Abstract: A bearing unit for rotatably supporting a shaft comprises a seamless holding member with a gap allowing a shaft to run through and extend to the outside, a bearing arranged in the inside of the holding member to rotatably support the shaft so as to make it radially revolvable, an anti-shaft-release member fitted to the shaft so as to abut the bearing in order to prevent the shaft from slipping away in the thrusting direction and a space-forming member arranged in the inside of the holding member so as to secure a space around the anti-shaft-release member. A bearing unit may further comprise an lubricating oil seal member and the space-forming member may be used to form a passage way for lubricating oil to prevent lubricating oil from leaking.
    Type: Application
    Filed: November 28, 2006
    Publication date: June 21, 2007
    Applicant: Sony Corporation
    Inventors: Yuji Shishido, Kenichiro Yazawa, Takeshi Kaneko, Kiyoyuki Takada, Hiroshi Sato, Yoshiaki Kakinuma, Ichiro Nakamura
  • Publication number: 20070071377
    Abstract: A bearing unit for rotatably supporting a shaft comprises a seamless holding member with a gap allowing a shaft to run through and extend to the outside, a bearing arranged in the inside of the holding member to rotatably support the shaft so as to make it radially revolvable, an anti-shaft-release member fitted to the shaft so as to abut the bearing in order to prevent the shaft from slipping away in the thrusting direction and a space-forming member arranged in the inside of the holding member so as to secure a space around the anti-shaft-release member. A bearing unit may further comprise an lubricating oil seal member and the space-forming member may be used to form a passage way for lubricating oil to prevent lubricating oil from leaking.
    Type: Application
    Filed: November 28, 2006
    Publication date: March 29, 2007
    Applicant: Sony Corporation
    Inventors: Yuji Shishido, Kenichiro Yazawa, Takeshi Kaneko, Kiyoyuki Takada, Hiroshi Sato, Yoshiaki Kakinuma, Ichiro Nakamura
  • Publication number: 20070036475
    Abstract: A bearing unit (90) for rotatably supporting a shaft (100) comprises a seamless holding member (120) with a gap allowing a shaft to run through and extend to the outside, a bearing (130) arranged in the inside of the holding member to rotatably support the shaft so as to make it radially revolvable, an anti-shaft-release member (115) fitted to the shaft so as to abut the bearing in order to prevent the shaft from slipping away in the thrusting direction and a space-forming member (113) arranged in the inside of the holding member so as to secure a space around the anti-shaft-release member. A bearing unit may further comprise an lubricating oil seal member and the space-forming member may be used to form a passage way for lubricating oil to prevent lubricating oil from leaking.
    Type: Application
    Filed: October 23, 2006
    Publication date: February 15, 2007
    Inventors: Yuji Shishido, Kenichiro Yazawa, Takeshi Kaneko, Kiyoyuki Takada, Hiroshi Sato, Yoshiaki Kakinuma, Ichiro Nakamura
  • Publication number: 20070037652
    Abstract: A bearing unit (90) for rotatably supporting a shaft (100) comprises a seamless holding member (120) with a gap allowing a shaft to run through and extend to the outside, a bearing (130) arranged in the inside of the holding member to rotatably support the shaft so as to make it radially revolvable, an anti-shaft-release member (115) fitted to the shaft so as to abut the bearing in order to prevent the shaft from slipping away in the thrusting direction and a space-forming member (113) arranged in the inside of the holding member so as to secure a space around the anti-shaft-release member. A bearing unit may further comprise an lubricating oil seal member and the space-forming member may be used to form a passage way for lubricating oil to prevent lubricating oil from leaking.
    Type: Application
    Filed: October 23, 2006
    Publication date: February 15, 2007
    Inventors: Yuji Shishido, Kenichiro Yazawa, Takeshi Kaneko, Kiyoyuki Takada, Hiroshi Sato, Yoshiaki Kakinuma, Ichiro Nakamura
  • Publication number: 20060270682
    Abstract: This invention provides a compound of the formula (I): wherein A=B=D represents NR10—C(O)—NR9, S—C(O)—NR9, NR9—C(O)—S, NR9—C(O)—O, CR10—C(O)—NR9, O—C(O)—NR9, NR10—C(O)—CR9, NR10—NR9—C(O), C(O)—NR9—NR10, NR10—N?CR9, N?N—CR9, NR10—CR9?N, N?CR9—NR10, NR10—N?N, N?N—NR10, S—CR9?N or N?CR9—S; X1 represents CR1 or N; X2 and X3 each independently represents CR8 or N; R1, R6, R8, R9 and R10 each independently represents hydrogen, halogen, hydroxy, (C1-C6)alkyl, (C1-C6)alkoxy, hydroxy(C1-C6)alkoxy, (C1-C6)alkoxy-(C1-C6)alkyl, (C1-C6)alkoxy-(C1-C6)alkoxy, halo(C1-C6)alkyl, (C1-C6)alkylthio, (C1-C6)alkylsulfinyl or (C1-C6)alkylsulfonyl; R2, R3, R4, and R5 each independently represents hydrogen, (C1-C6)alkyl, halogen, halo(C1-C6)alkyl, or hydroxy(C1-C6)alkyl; and R7 represents halogen, (C1-C6)alkyl, halo(C1-C6)alkyl, (C1-C6)alkoxy, hydroxy(C1-C6)alkoxy, (C1-C6)alkoxy-(C1-C6)alkyl, (C1-C6)alkoxy-(C1-C6)alkoxy, [(C1-C6)alkyl]NH— or [(C1-C6)alkyl]2N—; or a pharmaceutically acceptable salt thereof, provided that: (
    Type: Application
    Filed: May 31, 2006
    Publication date: November 30, 2006
    Inventors: Tadashi Inoue, Satoshi Nagayama, Yuji Shishido
  • Publication number: 20060211741
    Abstract: This invention provides a compound of the formula (I): wherein A and B are independently CR12 or N; D and E are each independently CR9 or N; R1 represents (C1-C6)alkyl; R2 represents hydrogen, halogen, hydroxy, (C1-C6)alkyl, halo(C1-C6)alkyl, hydroxy(C1-C6)alkyl, (C1-C6)alkoxy or (C1-C6)alkoxy-(C1-C6)alkyl; R3, R4, R5, R6, R10 and R11 each independently represent hydrogen, halogen, (C1-C6)alkyl, halo(C1-C6)alkyl, (C1-C6)alkoxy, hydroxy(C1-C6)alkyl or (C1-C6)alkoxy-(C1-C6)alkyl; or R3 and R4 are taken together with the carbon atom to which they are attached to form a 3- to 7-membered carbocyclic ring or heterocyclic ring in which one or two non-adjacent carbon atoms are optionally replaced by an oxygen atom, a sulfur atom or NH; R7 and R9 each independently represent hydrogen, halogen, (C1-C6)alkyl, halo(C1-C6)alkyl, hydroxy(C1-C6)alkyl, (C1-C6)alkoxy, hydroxy(C1-C6)alkoxy, (C1-C6)alkoxy-(C1-C6)alkyl, (C1-C6)alkoxy-(C1-C6)alkoxy, (C1-C6)alkylthio, (C1-C6)alkylsulfinyl, (C1-C6)alkylsulfonyl, NH2, [(C1-C6)a
    Type: Application
    Filed: March 17, 2006
    Publication date: September 21, 2006
    Inventors: Takeshi Hanazawa, Misato Hirano, Tadashi Inoue, Satoshi Nagayama, Kazunari Nakao, Yuji Shishido, Hirotaka Tanaka