Patents by Inventor Hiromichi Kobayashi

Hiromichi Kobayashi 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: 20230027517
    Abstract: A rubber composition is provided that contains an ethylene-butene-diene terpolymer, silica having a CTAB specific surface area of 30 m2/g or more and 150 m2/g or less, a silane coupling agent, and a crosslinking agent, in which a content of the silica per 100 parts by weight of the ethylene-butene-diene terpolymer is 25 parts by weight or more and 90 parts by weight or less.
    Type: Application
    Filed: November 25, 2020
    Publication date: January 26, 2023
    Inventors: Akihiro SUZUKI, Makoto NOGUCHI, Hiromichi KOBAYASHI
  • Patent number: 9713581
    Abstract: A magnetic powder to be included in a cosmetic agent being removable by a magnetic attraction force from the cosmetic agent applied to the skin. The magnetic powder comprises a ferromagnetic ferrite, a mean volume particle diameter of 50 to 75 ?m when determined from a particle size distribution obtained by a laser diffraction scattering method, a content of particles with a particle diameter of less than 37 ?m of 15% by mass or less, and a content of particles with a particle diameter of 105 ?m or more of 5% by mass or less. The magnetic powder preferably has a saturation magnetization of 80 Am2/kg or more.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: July 25, 2017
    Assignee: MTG Co., Ltd.
    Inventors: Tsuyoshi Matsushita, Hiromichi Kobayashi
  • Publication number: 20160038383
    Abstract: A magnetic powder to be included in a cosmetic agent being removable by a magnetic attraction force from the cosmetic agent applied to the skin. The magnetic powder comprises a ferromagnetic ferrite, a mean volume particle diameter of 50 to 75 ?m when determined from a particle size distribution obtained by a laser diffraction scattering method, a content of particles with a particle diameter of less than 37 ?m of 15% by mass or less, and a content of particles with a particle diameter of 105 ?m or more of 5% by mass or less. The magnetic powder preferably has a saturation magnetization of 80 Am2/kg or more.
    Type: Application
    Filed: March 18, 2014
    Publication date: February 11, 2016
    Applicant: MTG Co., Ltd.
    Inventors: Tsuyoshi MATSUSHITA, Hiromichi KOBAYASHI
  • Publication number: 20150277256
    Abstract: There is provided a ferrite carrier core material for an electrophotographic developer, which includes ferrite particles. A volume average particle diameter of the ferrite particles is from 10 ?m to less than 20 ?m. Also, there is provided a ferrite core which includes the ferrite carrier core material, and a resin coating a surface of the ferrite carrier core material. Further, there is provided an electrophotographic developer which includes the ferrite carrier; and a toner, wherein a concentration of the toner is from 15 to 35 wt %.
    Type: Application
    Filed: March 27, 2015
    Publication date: October 1, 2015
    Inventors: Hiroki SAWAMOTO, Hiromichi KOBAYASHI
  • Patent number: 8628905
    Abstract: A ferrite core material for a resin-filled type carrier, and a resin-filled type carrier which is used as an electrophotographic developer by mixing a toner, sufficiently secure the image density, have no carrier adhesion and can maintain high-quality images over a long period, and an electrophotographic developer using the carrier, are provided. A ferrite core material for a resin-filled type carrier characterized in a void fraction of 10 to 60%, a resin-filled type carrier filled in the carrier core material with a resin, and an electrophotographic developer composed of the resin-filled type carrier and a toner, are provided.
    Type: Grant
    Filed: May 31, 2006
    Date of Patent: January 14, 2014
    Assignee: Powdertech Co. Ltd.
    Inventors: Hiromichi Kobayashi, Tsuyoshi Itagoshi, Tomoyuki Suwa, Toshio Honjo
  • Patent number: 8475988
    Abstract: Disclosed are a resin-filled ferrite carrier core material for an electrophotographic developer, including a porous ferrite particle, wherein the composition of the porous ferrite particle is represented by the following formula (1), and part of (MgO) and/or (Fe2O3) in the following formula (1) is replaced with SrO; a ferrite carrier obtained by filling a resin in the voids of the ferrite carrier core material; and an electrophotographic developer using the ferrite carrier: ( MgO ) ? x ? ( Fe 2 ? O 3 ) ? y ? ( x = 10 ? ? mol ? ? % ? ? or ? ? more ? ? and ? ? less ? ? than ? ? 25 ? ? mol ? ? % y = exceeding ? ? 75 ? ? mol ? ? % ? ? and ? ? 90 ? ? mol ? ? % ? ? or ? ? less x + y = 100 ? ? mol ? ? % ) .
    Type: Grant
    Filed: February 2, 2011
    Date of Patent: July 2, 2013
    Assignee: Powdertech Co., Ltd.
    Inventors: Takao Sugiura, Takashi Hikichi, Hiromichi Kobayashi
  • Patent number: 8431311
    Abstract: A resin-filled carrier for an electrophotographic developer obtained by filling resin into voids of a porous ferrite core material, wherein the porous ferrite core material has a pore volume of 0.055 to 0.16 mL/g and a peak pore size of 0.20 to 0.7 ?m, and an electrophotographic developer using this resin-filled carrier.
    Type: Grant
    Filed: December 23, 2008
    Date of Patent: April 30, 2013
    Assignee: Powdertech Co., Ltd.
    Inventors: Takao Sugiura, Takeshi Gondo, Hiromichi Kobayashi
  • Publication number: 20120139070
    Abstract: In a manufacturing method, the following regions are formed in a semiconductor substrate: a pixel region where a photoelectric conversion element is placed and a peripheral region placed in the peripheral portion of the pixel region. The following wiring and film are formed over the main surface of the semiconductor substrate: an uppermost-layer wiring and a first interlayer insulating film located over the uppermost-layer wiring. The uppermost surface of the first interlayer insulating film is flattened. After the step of flattening the uppermost surface, the uppermost surface of the first interlayer insulating film in the pixel region is flat; and a step is formed in the uppermost surface of the first interlayer insulating film in the peripheral region.
    Type: Application
    Filed: December 1, 2011
    Publication date: June 7, 2012
    Inventor: Hiromichi KOBAYASHI
  • Patent number: 8187781
    Abstract: Employed are a resin-filled ferrite carrier for an electrophotographic developer filled with a resin in voids of a porous ferrite core material, wherein the resin filled in the voids is a silicone resin which has a softening point of 40° C. or above and is cured at or above such softening point, and the filled amount is 7 to 30 parts by weight based on 100 parts by weight of the core material, a method for producing thereof band an electrophotographic developer using this ferrite carrier.
    Type: Grant
    Filed: March 4, 2008
    Date of Patent: May 29, 2012
    Assignee: Powdertech Co., Ltd.
    Inventors: Hiromichi Kobayashi, Takao Sugiura
  • Patent number: 8168364
    Abstract: A resin-filled carrier for an electrophotographic developer obtained by filling resin into voids of a porous ferrite core material, wherein the porous ferrite core material has a pore volume of 0.04 to 0.16 mL/g and a peak pore size of 0.9 to 2.0 ?m, and an electrophotographic developer using this resin-filled carrier.
    Type: Grant
    Filed: March 13, 2009
    Date of Patent: May 1, 2012
    Assignee: Powdertech Co., Ltd.
    Inventors: Takao Sugiura, Takeshi Gondo, Hiromichi Kobayashi
  • Patent number: 8026033
    Abstract: Disclosed are a ferrite carrier for electrophotographic developer and an electrophotographic developer using the ferrite carrier, wherein: the ferrite carrier is a composite ferrite composed of Li and Mg; when the composition of the ferrite is calculated as a mixture of a Li ferrite having a stoichiometric composition and a Mg ferrite having a stoichiometric composition, the excessive amount of Fe2O3 is less than 5 mol %, or the total excessive amount of Li2O and MgO is less than 1 mol %; the content of the elements other than Li, Mg, Fe and O is 2 % by weight or less; and further, the content of Mn in terms of element is 1000 to 9000 ppm.
    Type: Grant
    Filed: January 16, 2008
    Date of Patent: September 27, 2011
    Assignee: Powdertech Co., Ltd.
    Inventors: Hiromichi Kobayashi, Takao Sugiura, Kanao Kayamoto
  • Publication number: 20110195357
    Abstract: Disclosed are a resin-filled ferrite carrier core material for an electrophotographic developer, including a porous ferrite particle, wherein the composition of the porous ferrite particle is represented by the following formula (1), and part of (MgO) and/or (Fe2O3) in the following formula (1) is replaced with SrO; a ferrite carrier obtained by filling a resin in the voids of the ferrite carrier core material; and an electrophotographic developer using the ferrite carrier: ( MgO ) × ( Fe 2 ? O 3 ) ? y ? ( x = 10 ? ? mol ? ? % ? ? or ? ? more ? ? and ? ? less ? ? than ? ? 25 ? ? mol ? ? % y = exceeding ? ? 75 ? ? mol ? ? % ? ? and ? ? 90 ? ? mol ? ? % ? ? or ? ? less x + y = 100 ? ? mol ? ? % ) ( 1 )
    Type: Application
    Filed: February 2, 2011
    Publication date: August 11, 2011
    Applicant: POWDERTECH CO., LTD.
    Inventors: Takao SUGIURA, Takashi HIKICHI, Hiromichi KOBAYASHI
  • Publication number: 20110126612
    Abstract: Disclosed is a gas sensor in which electrode pins including a plurality of electrode pins (71, 72) which are electrically connected to a gas-sensitive element and support the gas-sensitive element are each made to pass through one surface of a mounting base (in the drawing, provided on the lower side of a holder with spring properties (12)) to the other surface (rear surface) thereof and are supported therein. The end portions of the electrode pins are made to project into grooves (4b) through through-holes (4a) in a spacer (4), and a plurality of lead-out leads (51-53) that are parallel to the rear surface of the mounting base and also extend in a direction parallel to a holder board (11) are connected to projecting portions of the electrode pins by connecting portions (51a, 51b, 52a, 53a). A pressing member (6) is placed thereover and is fixed and held on the holder board (11) by the holder (12) which has spring properties.
    Type: Application
    Filed: July 29, 2009
    Publication date: June 2, 2011
    Applicant: CITIZEN FINETECH MIYOTA CO., LTD.
    Inventors: Yasuo Shimizu, Ikuo Takahashi, Hiromichi Kobayashi
  • Publication number: 20110109791
    Abstract: According to one embodiment, a ceramic package of which inner space is sealed by a ceramic base plate and a cover portion mounted on the ceramic base plate. The ceramic package has an image sensor, an element unit and a lead electrode. The image sensor and the element unit are mounted on the ceramic base plate. The lead electrode is formed on the ceramic base plate and electrically connected to the image sensor by a bonding wire. A surface on which the lead electrode is formed is the same as a surface on which the cover portion is mounted.
    Type: Application
    Filed: September 17, 2010
    Publication date: May 12, 2011
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Takuro Obara, Toyokazu Aizawa, Hiromichi Kobayashi, Katsuo Iwata
  • Patent number: 7914715
    Abstract: A granulating method for forming a particle with a continuous ink-jet method using a liquid material, in which the liquid material containing a solid component and a binder component is supplied into one or more ink-jet nozzles of a continuous ink-jet device, a droplet is formed by having the supplied liquid material flow out the ink-jet nozzle, the droplet is carried in to drying means for drying the droplet, and the carried droplet is dried so as to obtain a granulated particle(s), the granulated particle(s) and a granulating device.
    Type: Grant
    Filed: January 17, 2007
    Date of Patent: March 29, 2011
    Assignee: Powdertech Co., Ltd.
    Inventors: Koji Aga, Hiromichi Kobayashi
  • Patent number: 7880483
    Abstract: An object of the present invention is to provide a quality inspection method for obtaining a specifying factor which can more reliably indicate powder characteristics of a core material for an electrophotographic ferrite carrier. The method includes measuring an impedance of the core material for the electrophotographic ferrite carrier to obtain a Cole-Cole plot in which a real number impedance is arranged in an X-axis and an imaginary number impedance is arranged in a Y-axis, and evaluating characteristics of particles of the core material for the electrophotographic ferrite carrier using the Cole-Cole plot.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: February 1, 2011
    Assignee: Powdertech Co., Ltd.
    Inventors: Koji Aga, Hiromichi Kobayashi
  • Publication number: 20110019077
    Abstract: There is disclosed a method for fabricating a camera module includes the steps of: disposing a camera module body inside of a die; filling the die with a resin blocking a light; curing the resin; and removing the camera module body and the resin from the die. Here, disposing the camera module body inside of the die is disposing the camera module body having a lens holder secured on a sensor board inside of the die in such a manner that the side surface of the camera module body is not brought into contact with the side surface of the die. Filling the die with the resin is covering the upper end of the die with a lid so as to closely enclose the inside of the die, followed by filling the die with the resin. Taking the camera module body and the resin from the die is taking, from the die, the camera module body and the resin formed around the camera module body in close contact.
    Type: Application
    Filed: July 14, 2010
    Publication date: January 27, 2011
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Masaru Kobayashi, Katsuo Iwata, Toyokazu Aizawa, Takehiro Hiramatsu, Takuro Obara, Tatsuhiko Hagihara, Hiromichi Kobayashi, Shinichi Nitta, Manabu Yamada, Yasunari Fujii
  • Publication number: 20100111816
    Abstract: The invention aims at providing an inorganic particle-containing emulsion which enables further size reduction of particles and can bring about a mono-disperse system and an enhanced yield and a manufacturing method of a particle by the use of the emulsion. This aim can be performed by a water in oil emulsion prepared by mixing an oil phase liquid and an water phase liquid which contains inorganic particles under agitation, in which the water phase liquid contains inorganic particle having a specific gravity of 1.5 to 11 g/cm3 and 0.
    Type: Application
    Filed: February 21, 2008
    Publication date: May 6, 2010
    Applicant: POWDERTECH CO., LTD.
    Inventors: Koji Aga, Hiromichi Kobayashi
  • Publication number: 20100055601
    Abstract: A resin-filled carrier for an electrophotographic developer which carrier is obtained by filling a resin in the voids of a porous ferrite core material, wherein the Cl concentration of the porous ferrite core material, measured by an elution method, is 10 to 280 ppm and the resin contains an amine compound, and an electrophotographic developer using the resin-filled carrier.
    Type: Application
    Filed: August 18, 2009
    Publication date: March 4, 2010
    Applicant: POWDERTECH CO., LTD.
    Inventors: Takao SUGIURA, Takashi HIKICHI, Hiromichi KOBAYASHI
  • Publication number: 20090263739
    Abstract: A resin-filled carrier for an electrophotographic developer obtained by filling resin into voids of a porous ferrite core material, wherein the porous ferrite core material has a pore volume of 0.04 to 0.16 mL/g and a peak pore size of 0.9 to 2.0 ?m, and an electrophotographic developer using this resin-filled carrier.
    Type: Application
    Filed: March 13, 2009
    Publication date: October 22, 2009
    Applicant: Powdertech Co., Ltd.
    Inventors: Takao SUGIURA, Takeshi GONDO, Hiromichi KOBAYASHI