Patents by Inventor Kazuhiko Sakai

Kazuhiko Sakai 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: 11926492
    Abstract: A linear transport apparatus includes a transport cart, a first roller that rotates about a first rotation shaft extending from the transport cart along a first direction, a second roller that rotates about a second rotation shaft extending from the transport cart and forming an acute angle with the first rotation shaft, and a rail sandwiched between the first and second rollers to extend along a track on which the transport cart moves. The rail includes a first contact portion coming contact with the first roller and restricting movement of the transport cart in a second direction perpendicular to a direction in which the rail extends and the first direction, and a second contact portion that comes into contact with the second roller and is parallel to the second rotation shaft, and the rail includes a portion in which curvature of the track moves is different from another portion.
    Type: Grant
    Filed: June 17, 2021
    Date of Patent: March 12, 2024
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takuma Nakamura, Shin Sakai, Masaoki Iwase, Kazuhiko Fukushima
  • Patent number: 11319431
    Abstract: A polypropylene composition made from or containing (i) component (1) made from or containing a propylene homopolymer or copolymer containing 0 to 0.5% by weight of an ethylene-derived unit; (ii) component (2) made from or containing an ethylene/propylene copolymer containing 15 to 30% by weight of an ethylene-derived unit; and (iii) 0.01 to 1.0 parts by weight of a crystal nucleating agent based on a total of 100 parts by weight of component (1) and component (2); wherein 1) the Mw/Mn value of xylene insolubles (XI) is in the range of 6 to 20, 2) the weight ratio of component (1) to component (2) is in the range of 82:18 to 90:10, 3) the intrinsic viscosity of xylene solubles (XSIV) is in the range of 2.5 to 3.4 dl/g, 4) the MFR (at 230° C. under a load of 2.16 kg) is in the range of 3 to 10 g/10 min.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: May 3, 2022
    Assignee: Basell Poliolefine Italia S.r.l.
    Inventors: Takeshi Nakajima, Kazuhiko Sakai, Kunio Yamamoto, Masashi Uchida
  • Publication number: 20210253837
    Abstract: A polypropylene composition made from or containing (i) component (1) made from or containing a propylene homopolymer or copolymer containing 0 to 0.5% by weight of an ethylene-derived unit; (ii) component (2) made from or containing an ethylene/propylene copolymer containing 15 to 30% by weight of an ethylene-derived unit; and (iii) 0.01 to 1.0 parts by weight of a crystal nucleating agent based on a total of 100 parts by weight of component (1) and component (2); wherein 1) the Mw/Mn value of xylene insolubles (XI) is in the range of 6 to 20, 2) the weight ratio of component (1) to component (2) is in the range of 82:18 to 90:10, 3) the intrinsic viscosity of xylene solubles (XSIV) is in the range of 2.5 to 3.4 dl/g, 4) the MFR (at 230° C. under a load of 2.16 kg) is in the range of 3 to 10 g/10 min.
    Type: Application
    Filed: June 19, 2019
    Publication date: August 19, 2021
    Applicant: BASELL POLIOLEFINE ITALIA S.R.L.
    Inventors: TAKESHI NAKAJIMA, KAZUHIKO SAKAI, KUNIO YAMAMOTO, MASASHI UCHIDA
  • Patent number: 10670992
    Abstract: A developer container includes a containing device, a support member, and a crumbling device. The containing device contains developer therein and is rotated so as to transport the developer. The support member supports the containing device such that the containing device is rotatable. The support member has an outlet through which the developer transported by the containing device flows out. The crumbling device is supported such that the crumbling device is rotatable together with the containing device. The crumbling device is, when the containing device is rotated, rotated so as to crumble the developer. The crumbling device includes a body portion and an applying member. The body portion extends from a region near the containing device toward the outlet. The applying member is formed in the body portion. The applying member applies a force for transporting the developer toward the outlet when the crumbling device is rotated.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: June 2, 2020
    Assignee: FUJI XEROX CO., LTD.
    Inventor: Kazuhiko Sakai
  • Publication number: 20200073282
    Abstract: A developer container includes a containing device, a support member, and a crumbling device. The containing device contains developer therein and is rotated so as to transport the developer. The support member supports the containing device such that the containing device is rotatable. The support member has an outlet through which the developer transported by the containing device flows out. The crumbling device is supported such that the crumbling device is rotatable together with the containing device. The crumbling device is, when the containing device is rotated, rotated so as to crumble the developer. The crumbling device includes a body portion and an applying member. The body portion extends from a region near the containing device toward the outlet. The applying member is formed in the body portion. The applying member applies a force for transporting the developer toward the outlet when the crumbling device is rotated.
    Type: Application
    Filed: March 8, 2019
    Publication date: March 5, 2020
    Applicant: FUJI XEROX CO., LTD.
    Inventor: Kazuhiko SAKAI
  • Patent number: 9982120
    Abstract: The present disclosure relates to a heterophasic polypropylene compositions comprising 78-85% by weight of a propylene homopolymer or copolymer matrix with up to 2.0% by weight of ethylene units, 15-22% by weight of an elastomeric ethylene-propylene copolymer and a clarifying agent. The composition has an intrinsic viscosity of the xylene soluble fraction at room temperature of from 0.5 to 1.5 dl/g and a melt flow rate (230° C., 2.16 kg) of 0.5 to 10 g/10 min. The compositions of the present disclosure can be used to prepare sheets for thermoforming applications.
    Type: Grant
    Filed: February 4, 2015
    Date of Patent: May 29, 2018
    Assignee: Basell Poliolefine Italia S.r.l.
    Inventors: Takeshi Nakajima, Kazuhiko Sakai, Minoru Kuriyama, Masanori Maruyama
  • Publication number: 20160347941
    Abstract: The present disclosure relates to a heterophasic polypropylene compositions comprising 78-85% by weight of a propylene homopolymer or copolymer matrix with up to 2.0% by weight of ethylene units, 15-22% by weight of an elastomeric ethylene-propylene copolymer and a clarifying agent. The composition has an intrinsic viscosity of the xylene soluble fraction at room temperature of from 0.5 to 1.5 dl/g and a melt flow rate (230° C., 2.16 kg) of 0.5 to 10 g/10 min. The compositions of the present disclosure can be used to prepare sheets for thermoforming applications.
    Type: Application
    Filed: February 4, 2015
    Publication date: December 1, 2016
    Applicant: BASELL POLIOLEFINE ITALIAS.R.L.
    Inventors: TAKESHI NAKAJIMA, KAZUHIKO SAKAI, MINORU KURIYAMA, MASANORI MARUYAMA
  • Patent number: 8346071
    Abstract: A camera system includes a detection unit that detects fitting errors of a camera as displacement quantities in a first direction, a second direction and an optical axis rotating direction of an image picked up by the camera, a selection unit that selects a rotation correcting quantity corresponding to the displacement quantity in the optical axis rotating direction from plural rotation correction maps prepared in advance, a computation unit that computes the correcting quantities in the first direction and the second direction respectively based on the detected displacement quantities in the first direction and the second direction using linear equations; and a correction unit that corrects the displacements in the first direction, the second direction and the optical axis rotating direction of the picked up image based on the selected rotation correcting quantity and the computed correcting quantities in the first direction and the second direction.
    Type: Grant
    Filed: July 2, 2008
    Date of Patent: January 1, 2013
    Assignees: Sony Corporation, Nissan Motor Co., Ltd.
    Inventors: Kiyoshi Higashibara, Daisuke Sugawara, Kazuhiko Sakai, Akihiro Kanaoka
  • Patent number: 8249098
    Abstract: A first control data generation unit configured to generate first control data, a control data allocation processing unit configured to perform allocation processing for the first control data in order to reserve an area for the first control data in a frame memory, a data write control unit configured to write user data in an area in the frame memory except the area where the allocation processing is performed, and a transmission unit configured to transmit transmission data based on the data written in the frame memory are included, and the data write control unit writes the generated first control data in the area where the allocation processing is performed in the frame memory after generation of the first control data and after the allocation processing of the first control data and after writing the user data and before the transmission data is transmitted.
    Type: Grant
    Filed: May 29, 2009
    Date of Patent: August 21, 2012
    Assignee: Fujitsu Semiconductor Limited
    Inventors: Kazuhiko Sakai, Toru Igarashi, Koichi Suzuki, Shinya Hachisu
  • Patent number: 8198792
    Abstract: The electrodeless discharge lamp comprises: a bulb provided with a substantially-spherical spherical portion and a neck portion extending from the spherical portion; a base connected to the neck portion; a protrusion formed at an apex of the spherical portion; and an induction coil that causes light emission by discharge developed in the bulb. The electrodeless discharge lamp satisfies the formula below: t?6?10959×X+25?t+6??(Formula) where X=(B×S)/(L×A), B=W/(4×?×(D/20)2), S=?×(d/20)2, L=?×(d/10), W (W) denotes the lamp input power, D (mm) denotes the diameter of the spherical portion, d (mm) denotes the diameter of a portion at a joint surface between the neck portion and the base, and A (mm) denotes the distance from a largest-diameter portion of the spherical portion to the joint surface, and t is the temperature (° C.) at the tip of the protrusion during downward stable lighting of the electrodeless discharge lamp.
    Type: Grant
    Filed: September 25, 2007
    Date of Patent: June 12, 2012
    Assignee: Panasonic Corporation
    Inventors: Yoshinori Tsuzuki, Kazuhiko Sakai, Kohji Hiramatsu, Atsunori Okada
  • Patent number: 8058793
    Abstract: To provide a phosphor containing a comparatively much red component and having high light emitting efficiency, high brightness and further high durability, the nitride phosphor is represented by the general formula LXMYN((2/3)X+(4/3)Y):R or LXMYOZN((2/3)X+(4/3)Y?(2/3)Z):R (wherein L is at least one or more selected from the Group II Elements consisting of Mg, Ca, Sr, Ba and Zn, M is at least one or more selected from the Group IV Elements in which Si is essential among C, Si and Ge, and R is at least one or more selected from the rare earth elements in which Eu is essential among Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er and Lu.); contains the another elements.
    Type: Grant
    Filed: May 14, 2009
    Date of Patent: November 15, 2011
    Assignee: Nichia Corporation
    Inventors: Hiroto Tamaki, Masatoshi Kameshima, Motokazu Yamada, Takahiro Naitou, Kazuhiko Sakai
  • Patent number: 7964113
    Abstract: To provide a phosphor containing a comparatively much red component and having high light emitting efficiency, high brightness and further high durability, the nitride phosphor is represented by the general formula LXMYN((2/3)X+(4/3)Y):R or LXMYOZN((2/3)X+(4/3)Y?(2/3)Z):R (wherein L is at least one or more selected from the Group II Elements consisting of Mg, Ca, Sr, Ba and Zn, M is at least one or more selected from the Group IV Elements in which Si is essential among C, Si and Ge, and R is at least one or more selected from the rare earth elements in which Eu is essential among Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er and Lu.); contains the another elements.
    Type: Grant
    Filed: May 14, 2009
    Date of Patent: June 21, 2011
    Assignee: Nichia Corporation
    Inventors: Hiroto Tamaki, Masatoshi Kameshima, Suguru Takashima, Motokazu Yamada, Takahiro Naitou, Kazuhiko Sakai, Yoshinori Murazaki
  • Patent number: 7728500
    Abstract: In an electrodeless discharge lamp suitable for use at a place with unfavorable environmental conditions or at a place where lamp replacement is difficult, the replacement of a lamp unit is facilitated and the lamp unit is prevented from falling off from a power coupler unit even if there is component deterioration caused by long-term use. A metallic elastic member is provided near a position on a metallic heat conduction member of the power coupler unit that is farthest from an electromagnetic field generating portion. In addition to an ordinary coupling structure between the power coupler unit and a coupling member, the elastic member is engaged with the coupling member of the lamp unit. When the lamp unit is mounted on or removed from the power coupler unit, a bulb of the lamp unit is turned relative to the power coupler unit about the axis and moved forward/backward in the direction of the axis.
    Type: Grant
    Filed: November 24, 2004
    Date of Patent: June 1, 2010
    Assignee: Panasonic Electric Works Co., Ltd.
    Inventors: Hiroshi Ogasawara, Hidenori Kakehashi, Ryusuke Ura, Hiroshi Miyasaki, Keisuke Harada, Yoshinobu Shibata, Shigeki Matsuo, Kazuhiko Sakai
  • Patent number: 7719173
    Abstract: An electrodeless discharge lamp has a bulb into which a discharge gas and a mercury, which is controlled at a temperature of a coldest spot are filled. A power coupler generates a high frequency electromagnetic field. A ferrule couples the bulb and the power coupler. The bulb is configured as a substantially spherical barrel formed of a transparent material and has an opening. A sealing member is welded to the opening of the barrel having a substantially cylindrical cavity. A protrusion, which becomes the coldest spot when the lamp is lit in a state that the ferrule is disposed upward, is formed at an apex of the bulb. A protruding portion is formed in a vicinity just above the ferrule of the bulb, that is, in a bulb neck portion, so that the bulb neck portion becomes the coldest spot when the lamp is lit in a state that the ferrule is disposed downward. Thereby, a constant optical output is obtained, regardless of a posture of installation of the electrodeless discharge lamp.
    Type: Grant
    Filed: March 23, 2006
    Date of Patent: May 18, 2010
    Assignee: Panasonic Electric Works Co., Ltd.
    Inventors: Yoshinori Tsuzuki, Kazuhiko Sakai, Shin Ukegawa, Shigeki Matsuo
  • Publication number: 20100039041
    Abstract: The electrodeless discharge lamp of the present invention comprises: a bulb 1 provided with a substantially-spherical spherical portion 1a and a neck portion 1b extending from the spherical portion; a base 15 connected to the neck portion; a protrusion 4 formed at an apex of the spherical portion; and an induction coil 11a that causes light emission by discharge developed in the bulb. When defining the relations B=W/(4×p×(D/20)2), S=p×(d/20)2, L=p×(d/10), X=(B×S)/(L×A), where W (W) denotes the lamp input power, D (mm) denotes the diameter of the spherical portion, d (mm) denotes the diameter of a portion at a joint surface between the neck portion and the base, and A (mm) denotes the distance from a largest-diameter portion of the spherical portion to the joint surface, then the electrodeless discharge lamp satisfies the formula below: t?6=10959×X+25=t+6 ??(Formula) where t is the temperature (° C.) at the tip of the protrusion 4 during downward stable lighting of the electrodeless discharge lamp.
    Type: Application
    Filed: September 25, 2007
    Publication date: February 18, 2010
    Applicant: PANASONIC ELECTRIC WORKS CO., LTD
    Inventors: Yoshinori Tsuzuki, Kazuhiko Sakai, Kohji Hiramatsu, Atsunori Okada
  • Publication number: 20100026200
    Abstract: In an electrodeless discharge lamp (1) which is lit with PWM light control, a discharge gas including krypton is filled in a bulb (10), so that restriking voltage can be decreased and thus, and oscillation of the ferrite core (22) which is inserted inside of a cavity (5) of the bulb (10) can be decreased, and thus, occurrence of undesired sound can be restrained.
    Type: Application
    Filed: December 25, 2007
    Publication date: February 4, 2010
    Applicant: PANASONIC ELECTRIC WORKS CO., LTD.
    Inventors: Kazuhiko Sakai, Yoshinori Tsuzuki
  • Patent number: D928870
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: August 24, 2021
    Assignee: FUJIFILM Business Innovation Corp.
    Inventors: Akihiro Kobayashi, Takuji Matsumoto, Kazuhiko Sakai
  • Patent number: D928871
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: August 24, 2021
    Assignee: FUJIFILM Business Innovation Corp.
    Inventors: Akihiro Kobayashi, Takuji Matsumoto, Kazuhiko Sakai
  • Patent number: D955468
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: June 21, 2022
    Assignee: FUJIFILM Business Innovation Corp.
    Inventors: Akihiro Kobayashi, Takuji Matsumoto, Kazuhiko Sakai
  • Patent number: D956135
    Type: Grant
    Filed: April 24, 2019
    Date of Patent: June 28, 2022
    Assignee: FUJIFILM Business Innovation Corp.
    Inventors: Akihiro Kobayashi, Takuji Matsumoto, Kazuhiko Sakai