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).
-
Patent number: 11971676Abstract: A processor derives a plurality of unit density values which are each an average value of sensed densities for each of a plurality of unit areas sectioned for each unit length in a test toner image. The processor derives a weighted average of the plurality of unit density values to derive a test image density used for adjusting a control parameter in a printing portion. The unit length is a greatest common factor of two target lengths corresponding to perimeters of two types of target rotating members out of the plurality of rotating members. When a number of the plurality of unit areas is represented by n, n is a value obtained by subtracting 1 from an added value of a first constant and a second constant. The first constant and the second constant are values obtained by respectively dividing the two target lengths by the unit length.Type: GrantFiled: January 30, 2023Date of Patent: April 30, 2024Assignee: KYOCERA Document Solutions Inc.Inventors: Masaru Watanabe, Yasuaki Sakamoto, Ayato Morikami, Kenichi Hayashi, Hideyuki Ogasawara, Yukiko Yoshimura
-
Publication number: 20240103399Abstract: 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: ApplicationFiled: September 20, 2023Publication date: March 28, 2024Inventors: Ayato Morikami, Yasuaki Sakamoto, Masaru Watanabe, Kenichi Hayashi, Hideyuki Ogasawara, Yukiko Yoshimura
-
Patent number: 10843300Abstract: The present invention relates to a method for producing a soldered product by which soldering can be accomplished without using a jig.Type: GrantFiled: September 29, 2016Date of Patent: November 24, 2020Assignee: ORIGIN COMPANY, LIMITEDInventors: Yukiko Hayashi, Arisa Shiraishi, Naoto Ozawa, Takayuki Suzuki
-
Patent number: 10610981Abstract: 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: GrantFiled: September 29, 2016Date of Patent: April 7, 2020Assignees: ORIGIN COMPANY, LIMITED, KOKI COMPANY LIMITEDInventors: Yukiko Hayashi, Arisa Shiraishi, Naoto Ozawa, Takayuki Suzuki, Takeshi Shirai, Noriyoshi Uchida, Mitsuyasu Furusawa
-
Publication number: 20190009375Abstract: 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: ApplicationFiled: September 29, 2016Publication date: January 10, 2019Inventors: Yukiko HAYASHI, Arisa SHIRAISHI, Naoto OZAWA, Takayuki SUZUKI, Takeshi SHIRAI, Noriyoshi UCHIDA, Mitsuyasu FURUSAWA
-
Publication number: 20180326545Abstract: The present invention relates to a method for producing a soldered product by which soldering can be accomplished without using a jig.Type: ApplicationFiled: September 29, 2016Publication date: November 15, 2018Inventors: Yukiko HAYASHI, Arisa SHIRAISHI, Naoto OZAWA, Takayuki SUZUKI
-
Patent number: 7474490Abstract: 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: GrantFiled: April 26, 2007Date of Patent: January 6, 2009Assignee: Hitachi Global Storage Technologies Netherlands B.V.Inventors: Yukiko Hayashi, Isao Yoneda, Gaku Ikedo, Nobuhisa Koide, Yuhji Amari
-
Publication number: 20070253089Abstract: 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: ApplicationFiled: April 26, 2007Publication date: November 1, 2007Applicant: Hitachi Global Storage Technologies Inc.Inventors: Yukiko Hayashi, Isao Yoneda, Gaku Ikedo, Nobuhisa Koide, Yuhji Amari
-
Patent number: 7253581Abstract: 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: GrantFiled: January 6, 2005Date of Patent: August 7, 2007Assignee: Hitachi Global Storage Technologies Netherlands B.V.Inventors: Nobuhisa Koide, Yukiko Hayashi, Shougo Shimada, Gaku Ikedo
-
Publication number: 20050151499Abstract: 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: ApplicationFiled: January 6, 2005Publication date: July 14, 2005Applicant: Hitachi Global Storage Technologies Netherlands, B.V.Inventors: Nobuhisa Koide, Yukiko Hayashi, Shougo Shimada, Gaku Ikedo
-
Patent number: 6593555Abstract: 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: GrantFiled: October 29, 2001Date of Patent: July 15, 2003Assignee: Kyoko HayashiInventor: Yukiko Hayashi
-
Patent number: 6482989Abstract: 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: GrantFiled: July 18, 2001Date of Patent: November 19, 2002Assignee: Osaka UniversityInventors: Shun-ichi Murahashi, Naruyoshi Komiya, Yukiko Hayashi
-
Publication number: 20020074329Abstract: 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: ApplicationFiled: October 29, 2001Publication date: June 20, 2002Applicant: KYOKO HAYASHIInventor: Yukiko Hayashi
-
Publication number: 20020045778Abstract: 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: ApplicationFiled: July 18, 2001Publication date: April 18, 2002Inventors: Shun-Ichi Murahashi, Naruyoshi Komiya, Yukiko Hayashi
-
Patent number: 6030535Abstract: 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: GrantFiled: April 22, 1997Date of Patent: February 29, 2000Assignee: Yukiko HayashiInventors: Yukiko Hayashi, Shiro Fukui, Yutaka Nakamura
-
Patent number: 5912052Abstract: 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: GrantFiled: October 9, 1997Date of Patent: June 15, 1999Assignees: Toyota Jidosha Kabushiki Kaisha, Kansai Paint Company, LimitedInventors: Kazuyuki Kuwano, Mamoru Sugiura, Keita Ono, Yukiko Hayashi, Kyoichi Horibe, Hiroaki Kiyata
-
Patent number: 5908669Abstract: 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: GrantFiled: October 8, 1997Date of Patent: June 1, 1999Assignee: Kansai Paint Company, LtdInventors: Yukiko Hayashi, Keita Ono, Akimasa Nakahata, Mitsuhiro Fukuda
-
Patent number: 5888403Abstract: 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: GrantFiled: November 15, 1996Date of Patent: March 30, 1999Inventor: Yukiko Hayashi
-
Patent number: D383074Type: GrantFiled: November 13, 1995Date of Patent: September 2, 1997Assignee: Seiko Instruments Inc.Inventor: Yukiko Hayashi
-
Patent number: D387290Type: GrantFiled: December 5, 1995Date of Patent: December 9, 1997Assignee: Seiko Instruments Inc.Inventors: Yukiko Hayashi, Yoshinori Nakayama, Tasuku Nakazawa