Patents by Inventor Yukiko Hayashi

Yukiko Hayashi 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: 20240103399
    Abstract: A toner concentration sensing apparatus includes a first acquisition processing portion, a second acquisition processing portion, and a third acquisition processing portion. The first acquisition processing portion acquires a first sensing value corresponding to light reflected by a first region of an image-carrying member where a toner image is not formed. The second acquisition processing portion acquires a second sensing value corresponding to light reflected by a second region of the image-carrying member where a toner image has been formed. The third acquisition processing portion acquires a component ratio of a component in the second sensing value, that corresponds to light reflected by toner adhered onto a surface of the image-carrying member, using a specific calculation formula determined based on a first relational expression based on the first sensing value and a second relational expression not based on the first sensing value, and the second sensing value.
    Type: Application
    Filed: September 20, 2023
    Publication date: March 28, 2024
    Inventors: Ayato Morikami, Yasuaki Sakamoto, Masaru Watanabe, Kenichi Hayashi, Hideyuki Ogasawara, Yukiko Yoshimura
  • Patent number: 10843300
    Abstract: The present invention relates to a method for producing a soldered product by which soldering can be accomplished without using a jig.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: November 24, 2020
    Assignee: ORIGIN COMPANY, LIMITED
    Inventors: Yukiko Hayashi, Arisa Shiraishi, Naoto Ozawa, Takayuki Suzuki
  • Patent number: 10610981
    Abstract: The present invention provides a solder paste free of reducing agents and activators, and a method for producing a soldered product in which the solder paste is used to achieve solder bonding. The solder paste for reducing gas of the present invention is a solder paste for reducing gas used together a reducing gas. The solder paste contains a solder powder; a thixotropic agent that is solid at normal temperature; and a solvent, and is free of reducing agents for removal of oxide films and free of activators for improvement of reducibility.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: April 7, 2020
    Assignees: ORIGIN COMPANY, LIMITED, KOKI COMPANY LIMITED
    Inventors: Yukiko Hayashi, Arisa Shiraishi, Naoto Ozawa, Takayuki Suzuki, Takeshi Shirai, Noriyoshi Uchida, Mitsuyasu Furusawa
  • Publication number: 20190009375
    Abstract: The present invention provides a solder paste free of reducing agents and activators, and a method for producing a soldered product in which the solder paste is used to achieve solder bonding. The solder paste for reducing gas of the present invention is a solder paste for reducing gas used together a reducing gas. The solder paste contains a solder powder; a thixotropic agent that is solid at normal temperature; and a solvent, and is free of reducing agents for removal of oxide films and free of activators for improvement of reducibility.
    Type: Application
    Filed: September 29, 2016
    Publication date: January 10, 2019
    Inventors: Yukiko HAYASHI, Arisa SHIRAISHI, Naoto OZAWA, Takayuki SUZUKI, Takeshi SHIRAI, Noriyoshi UCHIDA, Mitsuyasu FURUSAWA
  • Publication number: 20180326545
    Abstract: The present invention relates to a method for producing a soldered product by which soldering can be accomplished without using a jig.
    Type: Application
    Filed: September 29, 2016
    Publication date: November 15, 2018
    Inventors: Yukiko HAYASHI, Arisa SHIRAISHI, Naoto OZAWA, Takayuki SUZUKI
  • Patent number: 7474490
    Abstract: Embodiments in accordance with the present invention provide a disk drive that ensures quieter rotational acceleration of a recording disk. Certain embodiments relate to a hard disk drive that detects the vibration of an enclosure by monitoring, via a driver, a counter electromotive voltage generated in a voice coil motor. If the hard disk drive detects a predetermined level of vibration or higher in the enclosure, it switches the status of a drive signal applied to a spindle motor so as to reduce the current level or smooth the waveform. This ensures reduced vibration of the enclosure.
    Type: Grant
    Filed: April 26, 2007
    Date of Patent: January 6, 2009
    Assignee: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Yukiko Hayashi, Isao Yoneda, Gaku Ikedo, Nobuhisa Koide, Yuhji Amari
  • Publication number: 20070253089
    Abstract: Embodiments in accordance with the present invention provide a disk drive that ensures quieter rotational acceleration of a recording disk. Certain embodiments relate to a hard disk drive that detects the vibration of an enclosure by monitoring, via a driver, a counter electromotive voltage generated in a voice coil motor. If the hard disk drive detects a predetermined level of vibration or higher in the enclosure, it switches the status of a drive signal applied to a spindle motor so as to reduce the current level or smooth the waveform. This ensures reduced vibration of the enclosure.
    Type: Application
    Filed: April 26, 2007
    Publication date: November 1, 2007
    Applicant: Hitachi Global Storage Technologies Inc.
    Inventors: Yukiko Hayashi, Isao Yoneda, Gaku Ikedo, Nobuhisa Koide, Yuhji Amari
  • Patent number: 7253581
    Abstract: Embodiments of the invention provide a way to accurately detect the position of a spindle motor. In a spindle motor startup process according to one embodiment, a parameter setup section acquires from a parameter table a sense time value corresponding to an input voltage that is acquired from an ADC. The parameter setup section sets the sense time value in a register. A position determination section, which is within an SPM driver, performs an induced voltage detection process for rotor position detection purposes during the time corresponding to the sense time value that is set in the register. Even when the input voltage is decreased, rotor position detection can be properly achieved by changing the sense time value in accordance with a change in the input voltage.
    Type: Grant
    Filed: January 6, 2005
    Date of Patent: August 7, 2007
    Assignee: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Nobuhisa Koide, Yukiko Hayashi, Shougo Shimada, Gaku Ikedo
  • Publication number: 20050151499
    Abstract: Embodiments of the invention provide a way to accurately detect the position of a spindle motor. In a spindle motor startup process according to one embodiment, a parameter setup section acquires from a parameter table a sense time value corresponding to an input voltage that is acquired from an ADC. The parameter setup section sets the sense time value in a register. A position determination section, which is within an SPM driver, performs an induced voltage detection process for rotor position detection purposes during the time corresponding to the sense time value that is set in the register. Even when the input voltage is decreased, rotor position detection can be properly achieved by changing the sense time value in accordance with a change in the input voltage.
    Type: Application
    Filed: January 6, 2005
    Publication date: July 14, 2005
    Applicant: Hitachi Global Storage Technologies Netherlands, B.V.
    Inventors: Nobuhisa Koide, Yukiko Hayashi, Shougo Shimada, Gaku Ikedo
  • Patent number: 6593555
    Abstract: The purpose is to provide a heating unit of a carbon fiber-mixed sheet with a low price in which sheet carbon fibers are equally dispersed and a member on the surface of which sheet is not subjected to such change of properties as discoloration and the like. The constitution is characterized in that a sizing agent covers a part of the carbon fiber-mixed sheet which sheet is made by the mixed fiber-making of 5˜10 wt. % of a carbon fiber having a length of 5˜10 mm and 95˜90 wt. % of a pulp containing a bast fiber and in that the sheet has a thickness of 150 &mgr;m or less, a basis weight of 50 g/m2 or less and a degree of beating of 30˜70° SR.
    Type: Grant
    Filed: October 29, 2001
    Date of Patent: July 15, 2003
    Assignee: Kyoko Hayashi
    Inventor: Yukiko Hayashi
  • Patent number: 6482989
    Abstract: A method for oxidizing an alkane, comprising the step of oxidizing said alkane with oxygen in the presence of an aldehyde, a copper-based catalyst and a nitrogen-containing compound. This method may be used to convert alkanes to corresponding alcohols and ketone having pharmaceutical activities, etc.
    Type: Grant
    Filed: July 18, 2001
    Date of Patent: November 19, 2002
    Assignee: Osaka University
    Inventors: Shun-ichi Murahashi, Naruyoshi Komiya, Yukiko Hayashi
  • Publication number: 20020074329
    Abstract: The purpose is to provide a heating unit of a carbon fiber-mixed sheet with a low price in which sheet carbon fibers are equally dispersed and a member on the surface of which sheet is not subjected to such change of properties as discoloration and the like. The constitution is characterized in that a sizing agent covers a part of the carbon fiber-mixed sheet which sheet is made by the mixed fiber-making of 5˜10 wt. % of a carbon fiber having a length of 5˜10 mm and 95˜90 wt. % of a pulp containing a bast fiber and in that the sheet has a thickness of 150 &mgr;m or less, a basis weight of 50 g/m2 or less and a degree of beating of 30˜70° SR.
    Type: Application
    Filed: October 29, 2001
    Publication date: June 20, 2002
    Applicant: KYOKO HAYASHI
    Inventor: Yukiko Hayashi
  • Publication number: 20020045778
    Abstract: A method for oxidizing an alkane, comprising the step of oxidizing said alkane with oxygen in the presence of an aldehyde, a copper-based catalyst and a nitrogen-containing compound. This method may be used to convert alkanes to corresponding alcohols and ketone having pharmaceutical activities, etc.
    Type: Application
    Filed: July 18, 2001
    Publication date: April 18, 2002
    Inventors: Shun-Ichi Murahashi, Naruyoshi Komiya, Yukiko Hayashi
  • Patent number: 6030535
    Abstract: Original seawater is supplied to a pre-treatment equipment, and a flocculated material produced by exerting a magnetic force and injecting ozone is removed by filtration. The seawater pretreated by the pre-treatment equipment is supplied to a reverse osmosis membrane module. Concentrated salt water discharged from the reverse osmosis membrane module is supplied to an electrodialyser unit. The concentrated salt water discharged from the electrodialyser unit is supplied to an evaporator. In the evaporator, the concentrated salt water is evaporated to dry solid salt. A part or all of desalted water discharged from the electrodialyser unit is returned to the reverse osmosis membrane module. Permeated water discharged from the reverse osmosis membrane module and evaporated water obtained by the evaporator are supplied as potable water.
    Type: Grant
    Filed: April 22, 1997
    Date of Patent: February 29, 2000
    Assignee: Yukiko Hayashi
    Inventors: Yukiko Hayashi, Shiro Fukui, Yutaka Nakamura
  • Patent number: 5912052
    Abstract: This invention is directed to a method of pattern coating, comprising the steps of: coating a substrate with an aqueous colored coating composition comprising a neutralization product of an acrylic copolymer containing an alkoxysilyl group and a carboxyl group and a coloring pigment, using a spray device having a fine-orifice nozzle(s) to give a pattern coating layer, and coating the pattern coating layer with a clear coating composition.
    Type: Grant
    Filed: October 9, 1997
    Date of Patent: June 15, 1999
    Assignees: Toyota Jidosha Kabushiki Kaisha, Kansai Paint Company, Limited
    Inventors: Kazuyuki Kuwano, Mamoru Sugiura, Keita Ono, Yukiko Hayashi, Kyoichi Horibe, Hiroaki Kiyata
  • Patent number: 5908669
    Abstract: This invention is directed to an aqueous colored coating composition which is applied with a spray device having a fine-orifice nozzle(s), the composition comprising a neutralized acrylic copolymer containing an alkoxysilyl group and a carboxyl group and a coloring pigment.
    Type: Grant
    Filed: October 8, 1997
    Date of Patent: June 1, 1999
    Assignee: Kansai Paint Company, Ltd
    Inventors: Yukiko Hayashi, Keita Ono, Akimasa Nakahata, Mitsuhiro Fukuda
  • Patent number: 5888403
    Abstract: Water to be treated is introduced into a first ozone mixer (5) and subjected to a magnetic force, and ozone supplied from a first ozonizer (4) is injected into the water for oxidation and coagulation of substances to be oxidized. Then, coagulated substances are removed by a first filter (6). The resulting water is introduced into a second ozone mixer (8) and subjected to a magnetic force, and ozone supplied from a second ozonizer (7) is injected into the water. Thereafter, the water is passed through a reaction vessel (9) filled with activated carbon, and then coagulated substances are removed from the water by a second filter (10).
    Type: Grant
    Filed: November 15, 1996
    Date of Patent: March 30, 1999
    Inventor: Yukiko Hayashi
  • Patent number: D378898
    Type: Grant
    Filed: May 26, 1995
    Date of Patent: April 22, 1997
    Assignee: Seiko Instruments Inc.
    Inventors: Yukiko Hayashi, Rumi Tanaka
  • Patent number: D383074
    Type: Grant
    Filed: November 13, 1995
    Date of Patent: September 2, 1997
    Assignee: Seiko Instruments Inc.
    Inventor: Yukiko Hayashi
  • Patent number: D387290
    Type: Grant
    Filed: December 5, 1995
    Date of Patent: December 9, 1997
    Assignee: Seiko Instruments Inc.
    Inventors: Yukiko Hayashi, Yoshinori Nakayama, Tasuku Nakazawa