Patents by Inventor Naofumi Kimura

Naofumi Kimura 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: 10463944
    Abstract: There is provided a sensor device capable of operating and reducing electric power consumption effectively, in response to sensing data of a state of the hitting tool used by the user, the sensor device including: a sensor unit configured to directly or indirectly detect sensing data indicating a motion and an orientation of a hitting tool, a communication unit configured to transmit the sensing data detected by the sensor unit to an external device, and a control unit configured to control operation of the sensor unit and the communication unit. The control unit or the sensor unit changes at least one of the sensor unit and the control unit to an electric power saving mode, upon detecting that the hitting tool has a specific orientation for a certain amount of time.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: November 5, 2019
    Assignee: SONY CORPORATION
    Inventors: Naofumi Fukasawa, Hideyuki Matsunaga, Takaomi Kimura, Ryo Mukaiyama, Kosei Yamashita, Renji Tamura
  • Patent number: 10289209
    Abstract: There is provided an information processing apparatus including a data acquiring unit configured to acquire content to which metadata is attached and the metadata attached to the content, the metadata being generated from data obtained from a sensor mounted on a subject, and a display control unit configured to reflect contents of the metadata acquired by the data acquiring unit in display of the content to which the metadata acquired by the data acquiring unit is attached.
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: May 14, 2019
    Assignee: SONY CORPORATION
    Inventors: Yoshihiro Nakanishi, Kosei Yamashita, Ryo Mukaiyama, Takaomi Kimura, Hideyuki Matsunaga, Naofumi Fukasawa
  • Patent number: 9243621
    Abstract: A compressor valve structure permits improvement in durability and volumetric efficiency of a compressor and limits power losses. The width of the base portion of each suction reed valve is shorter than the width of the valve flap. The valve base plate has support portions, receiving portions, main coupling portions, and auxiliary coupling portions. Each support portion receives a central area of corresponding one of the valve flaps. The receiving portion receives a distal area of the valve flap. The main coupling portion extends from the support portion and couples the support portion to the receiving portion. The auxiliary coupling portion extends from the support portion. The suction ports are formed through the valve base plate, while leaving the support portions, the receiving portions, the main coupling portions, and the auxiliary coupling portions.
    Type: Grant
    Filed: September 25, 2012
    Date of Patent: January 26, 2016
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Takahiro Moroi, Masakazu Obayashi, Naofumi Kimura, Fumitaka Yoshizumi, Yasuhiro Kondoh, Kazunori Yoshida, Masakatsu Kuroishi
  • Patent number: 8991300
    Abstract: The present invention provides a variable displacement swash plate type compressor that reduces wear of cylinder bores and the amount of blow-by gas. Each piston of the compressor has a piston main body, which has a distal portion located at an end corresponding to the compression chamber. A tapering portion and an arcuate portion are formed in the distal portion. The arcuate portion is continuous with an end of the tapering portion that is closer to the compression chamber. The tapering portion and the arcuate portion each have a diameter that increases toward the skirt. The tapering portion has a tapering angle that is in a range from 0.45 degrees to 1.5 degrees. The distance between the distal end of the piston main body and a starting point of the tapering portion on an end closer to the skirt is set in a range from 1.5 mm to 5.0 mm.
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: March 31, 2015
    Assignees: Kabushiki Kaisha Toyota Jidoshokki, Kabushiki Kaisha Toyota Chuo Kenkyusho
    Inventors: Takahiro Moroi, Masakazu Obayashi, Naofumi Kimura, Yoshio Kimoto, Noritaka Nishimori, Yasuhiro Kondoh, Etsuko Hori
  • Patent number: 8869837
    Abstract: A compressor includes a discharge chamber, a compression chamber, a partition wall, and a discharge reed valve. The partition wall is arranged between the discharge chamber and the compression chamber and includes a fixing surface facing the discharge chamber. The partition wall includes a discharge port that communicates the discharge chamber and the compression chamber. The discharge reed valve includes a fixed portion, an intermediate portion, and a valve portion. The fixing surface includes a first groove portion, which extends around the discharge port, and a valve seat surface, which is arranged between the discharge port and the first groove portion. The first groove portion extends to a range overlapped with the intermediate portion. A part of the valve portion at a distal side does not close the first groove portion. The valve seat surface includes a receiving portion.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: October 28, 2014
    Assignee: Kabushiki Kaisha Toyota Jidoshokki
    Inventors: Takahiro Moroi, Masakazu Obayashi, Naofumi Kimura, Fumitaka Yoshizumi, Masakatsu Kuroishi, Yasuhiro Kondoh, Kazunori Yoshida
  • Publication number: 20130052066
    Abstract: A compressor includes a discharge chamber, a compression chamber, a partition wall, and a discharge reed valve. The partition wall is arranged between the discharge chamber and the compression chamber and includes a fixing surface that faces the discharge chamber. The partition wall includes a discharge port that can communicate the discharge chamber and the compression chamber. The discharge reed valve includes a fixed portion, an intermediate portion, and a valve portion. The partition wall includes a supporting portion, a receiving portion, and a main coupling portion. The supporting portion supports a central region of the valve portion. The receiving portion receives a distal region of the valve portion. The main coupling portion extends from the supporting portion to couple the supporting portion and the receiving portion in order to divide into two a distal discharging region of the discharge port.
    Type: Application
    Filed: March 31, 2011
    Publication date: February 28, 2013
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Takahiro Moroi, Masakazu Obayashi, Naofumi Kimura, Fumitaka Yoshizumi, Masakatsu Kuroishi, Yasuhiro Kondoh, Kazunori Yoshida
  • Publication number: 20130014841
    Abstract: A compressor includes a discharge chamber, a compression chamber, a partition wall, and a discharge reed valve. The partition wall is arranged between the discharge chamber and the compression chamber and includes a fixing surface facing the discharge chamber. The partition wall includes a discharge port that communicates the discharge chamber and the compression chamber. The discharge reed valve includes a fixed portion, an intermediate portion, and a valve portion. The fixing surface includes a first groove portion, which extends around the discharge port, and a valve seat surface, which is arranged between the discharge port and the first groove portion. The first groove portion extends to a range overlapped with the intermediate portion. A part of the valve portion at a distal side does not close the first groove portion. The valve seat surface includes a receiving portion.
    Type: Application
    Filed: March 23, 2011
    Publication date: January 17, 2013
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Takahiro Moroi, Masakazu Obayashi, Naofumi Kimura, Fumitaka Yoshizumi, Masakatsu Kuroishi, Yasuhiro Kondoh, Kazunori Yoshida
  • Publication number: 20090241766
    Abstract: A variable displacement compressor includes a housing, a rotary shaft, a bearing, a seal member, a shaft seal chamber, a discharge refrigerant passage and a partition. The partition is provided in the shaft seal chamber for partitioning the shaft seal chamber into a first seal chamber to which the discharge refrigerant passage is opened and a second seal chamber part of the periphery of which is formed by the bearing and the seal member. The partition is provided with a first guide passage through which refrigerant containing lubricating oil flowed from the discharge refrigerant passage into tho first seal chamber is substantially all supplied to the seal member of the second seal chamber.
    Type: Application
    Filed: March 30, 2009
    Publication date: October 1, 2009
    Inventors: Toru ONISHI, Naoya Yokomachi, Masakazu Murase, Hiromi Ueda, Naofumi Kimura, Masahiro Kawaguchi
  • Publication number: 20090107327
    Abstract: A capacity-variable type swash plate compressor in which the preferable operability of a link mechanism and reduction of manufacturing cost are realized is provided. According to the compressor in the present invention, a link mechanism includes one swash plate arm and intermediate arms. The intermediate arms include first and second intermediate arms. The first and second intermediate arms are joined while being rotatably supported by a lug member and the swash plate arm via a lug-side pin which constitutes a lug-side axis and a swash-plate-side pin which constitutes a swash-plate-side axis and clamping the lug member and the swash plate arm via the lug-side pin and the swash-plate-side pin so as to allow a sliding movement.
    Type: Application
    Filed: September 26, 2008
    Publication date: April 30, 2009
    Inventors: Masaki Ota, Masahiro Kawaguchi, Hiroshi Kubo, Ryo Matsubara, Naofumi Kimura, Hideharu Yamashita
  • Patent number: 6600535
    Abstract: A reflector includes a substrate, a plurality of convex/concave portions formed on the substrate, and a thin reflective film formed over the convex/concave portions. When light is incident upon the reflector from a certain direction, an intensity of reflected light in a viewing angle range of about −45° to +45° with respect to a regular reflection direction of the incident light 10 is about 60% or more of an intensity of light which is incident upon a standard white plate from a direction inclined by about 30° from a direction normal to the plate and is reflected to the direction normal to the plate.
    Type: Grant
    Filed: February 25, 1999
    Date of Patent: July 29, 2003
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kazuhiko Tsuda, Masako Nakamura, Akiyoshi Fujii, Mariko Ban, Yasuhisa Itoh, Kozo Nakamura, Naofumi Kimura
  • Patent number: 6579071
    Abstract: An introduction passage is formed in a rear housing. The introduction passage extends from a wall of the rear housing across a discharge chamber to a suction chamber. The introduction passage has a first portion extending from an opening portion of the rear housing along a wall of the discharge chamber and along a wall of the suction chamber to the suction chamber. A second portion of the passage bends in the suction chamber substantially perpendicularly and then extends toward a valve plate of a compressor. The outlet of the introduction passage is located closer to the valve plate than to the wall of the suction chamber. Therefore, generation of suction pulsation is suppressed without increasing the size of the compressor.
    Type: Grant
    Filed: June 18, 2001
    Date of Patent: June 17, 2003
    Assignee: Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
    Inventors: Tomoji Tarutani, Naofumi Kimura, Toshihiro Kawai, Masahiro Kawaguchi
  • Patent number: 6474957
    Abstract: A suction port as a fluid port of a piston type compressor is contoured with reference to a middle line passing through a middle point of a maximum length of the suction port in the longitudinal direction of the suction valve and perpendicularly crossing a reference line extending in the longitudinal direction. The middle line divides the suction port into a first section positioned on the proximal end side and a second section positioned on the distal end side. An area of the second section is greater than an area of the first section. A width increasing region is disposed in which the width of the suction port becomes gradually greater from the proximal end side to the distal end side, and the length of the width increasing region occupies a major part of the maximum length of the suction port.
    Type: Grant
    Filed: May 2, 2001
    Date of Patent: November 5, 2002
    Assignee: Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
    Inventors: Naofumi Kimura, Masakazu Obayashi
  • Patent number: 6471490
    Abstract: A suction port of a piston type compressor is formed in the shape similar to a portion of a sector with an apex portion of the sector removed. A distal end portion of a suction valve which can open and close the suction port has a contour line including a distal end forming line extending generally parallel to a distal end line of the suction port, and side lines. A gap between the distal end line of the suction port and the distal end forming line of the suction valve is substantially constant, and a gap between the distal end forming line and the circle of the cylinder bore is substantially constant. The ease of the inflow of a gas when the gas is sucked from the suction port to the cylinder bore is improved.
    Type: Grant
    Filed: May 2, 2001
    Date of Patent: October 29, 2002
    Assignee: Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
    Inventors: Naofumi Kimura, Masakazu Obayashi
  • Publication number: 20010047833
    Abstract: The discharge port 27 comprises a tapered first diameter-increasing portion 28 and a tapered second diameter-increasing portion 29. The cross-sectional areas of the first diameter-increasing portion 28 and the second diameter-increasing portion 29 increase from the upstream toward the downstream of the discharge port 27. The rate of increase of the cross-sectional area of the second diameter-increasing portion 29 is designed so as to be greater than that of the first diameter-increasing portion 28. The second diameter-increasing portion 29 is connected to the first diameter-increasing portion 28 and the maximum cross-sectional area of the first diameter-increasing portion is equal to the minimum cross-sectional area of the second diameter-increasing portion.
    Type: Application
    Filed: May 23, 2001
    Publication date: December 6, 2001
    Inventors: Naofumi Kimura, Masakazu Obayashi
  • Publication number: 20010041141
    Abstract: A suction port of a piston type compressor is formed in the shape similar to a portion of a sector with an apex portion of the sector removed. A distal end portion of a suction valve which can open and close the suction port has a contour line including a distal end forming line extending generally parallel to a distal end line of the suction port, and side lines. A gap between the distal end line of the suction port and the distal end forming line of the suction valve is substantially constant, and a gap between the distal end forming line and the circle of the cylinder bore is substantially constant. The ease of the inflow of a gas when the gas is sucked from the suction port to the cylinder bore is improved.
    Type: Application
    Filed: May 2, 2001
    Publication date: November 15, 2001
    Inventors: Naofumi Kimura, Masakazu Obayashi
  • Publication number: 20010041142
    Abstract: A suction port as a fluid port of a piston type compressor is contoured with reference to a middle line passing through a middle point of a maximum length of the suction port in the longitudinal direction of the suction valve and perpendicularly crossing a reference line extending in the longitudinal direction. The middle line divides the suction port into a first section positioned on the proximal end side and a second section positioned on the distal end side. An area of the second section is greater than an area of the first section. A width increasing region is disposed in which the width of the suction port becomes gradually greater from the proximal end side to the distal end side, and the length of the width increasing region occupies a major part of the maximum length of the suction port.
    Type: Application
    Filed: May 2, 2001
    Publication date: November 15, 2001
    Inventors: Naofumi Kimura, Masakazu Obayashi
  • Patent number: 6313895
    Abstract: An object of the present invention is to provide a reflecting plate having excellent reflecting characteristics and a reflection type liquid crystal display apparatus having an improved display quality. A mask has a plurality of basic uneven spot patterns for individual pixels, and two or more uneven regions for at least one basic uneven spot pattern are formed. Any two of the two or more uneven regions appear at least in a relation of parallel displacement in which the uneven spot patterns are displaced in parallel with each other, among relations of parallel displacement, rotational displacement and reversal of uneven spot pattern, and the uneven regions are irregularly arranged. A reflecting plate and a reflection type liquid crystal display apparatus both having convexes are manufactured by an exposure of a photosensitive resin film using the mask. Even in the case where an exposure step is repeated in different positions, no seam is observed.
    Type: Grant
    Filed: October 23, 1997
    Date of Patent: November 6, 2001
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kazuhiko Tsuda, Mariko Ban, Naofumi Kimura, Seiichi Mitsui
  • Patent number: 6296457
    Abstract: In a discharge pulsation damping apparatus of a compressor according to this invention, an expansion muffler 46 and a resonance muffler 58 each having a predetermined capacity are defined inside cylinder blocks 11 and 12 through partitions 59 and 60 so that the resonance muffler 58 is situated at a position higher than the expansion muffler 46 in a gravitational direction (vertical direction). The expansion muffler 46is connected to discharge chambers 38 and 39 and to an outlet 48, and both mufflers 46 and 58 are communicated by a communication passage 61 formed in the partitions 59and 60. The capacity of the resonance muffler 58, the open sectional area of the communication passage 61 and its passage length are set to values such that a pressure change capable of offsetting specific frequency components of the discharge pulsation inside the expansion muffler 46 can be generated inside the resonance muffler 58.
    Type: Grant
    Filed: April 5, 2000
    Date of Patent: October 2, 2001
    Assignee: Kabushiki Kaisha Toyoda Jidoshokki
    Inventors: Noriyuki Shintoku, Hisato Kawamura, Naofumi Kimura, Kazuhiro Tanikawa
  • Patent number: 6247902
    Abstract: A mechanism for attenuating torsional vibration in a compressor is described. The compressor includes a swash plate secured to a drive shaft and pistons coupled to the swash plate. Compression of refrigerant gas by the pistons generates torsional vibrations of the drive shaft. The rear end of the drive shaft is coupled to a damper for attenuating torsional vibrations. The damper includes a frictional plate secured to the rear end of the drive shaft, a weight rotatably fitted about the drive shaft, and a coil spring. The coil spring elastically presses the weight against the frictional plate and elastically couples the weight with the drive shaft. When the drive shaft torsionally vibrates, the weight contacts the frictional plate and is vibrated about the axis of the drive shaft by the coil spring. As a result, energy of the torsional vibrations is consumed and the vibrations are attenuated. Further embodiments show similar dampers attached to the exterior of the compressor.
    Type: Grant
    Filed: September 21, 2000
    Date of Patent: June 19, 2001
    Assignee: Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
    Inventors: Masakazu Obayashi, Naofumi Kimura, Akira Nakamoto, Kazuhiro Nomura, Hiroyuki Gennami
  • Patent number: 6094252
    Abstract: A liquid crystal display device having a liquid crystal cell including: a pair of substrates at least one of which has light transparency; a chiral nematic liquid crystal layer having positive anisotropy of dielectric constant, disposed between the pair of substrates; and a voltage applying circuit for applying a voltage to the liquid crystal layer, wherein the liquid crystal layer contains a pleochroic dye, and liquid crystal molecules in the liquid crystal layer are twisted with respect to a helical axis perpendicular to surfaces of the pair of substrates, a twist angle of the liquid crystal molecules from one of the pair of substrates to the other of the pair of substrates is in a range selected from the group consisting of a range from 0.degree. to 50.degree., a range from 140.degree. to 250.degree., and a range of twist angles obtained by adding an integral multiple of n radian to the twist angles in the range from 0.degree. to 50.degree. and in the range from 140.degree. to 250.degree..
    Type: Grant
    Filed: September 4, 1996
    Date of Patent: July 25, 2000
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yasuhisa Itoh, Naofumi Kimura