Patents by Inventor Daisuke Takagi

Daisuke Takagi 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: 10456888
    Abstract: It is an object of the present invention to provide an abrasive material which enables: processing efficiency and finished planarity of a substrate material to be simultaneously improved at a high level; polishing costs to be reduced; and a difficult-to-process substrate composed of sapphire or silicon carbide to be polished efficiently and precisely. An abrasive material comprises a substrate and an abrasive layer laminated on a front face side of the substrate, wherein the abrasive layer includes a binder containing an inorganic substance as a principal component, and abrasive particles dispersed in the binder, wherein a front face of the abrasive layer comprises a plurality of regions provided through dividing by grooves, and wherein a maximum peak height (Rp) on the front face of the abrasive layer is no less than 2.5 ?m and no greater than 70 ?m.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: October 29, 2019
    Assignee: BANDO CHEMICAL INDUSTRIES, LTD.
    Inventors: Fumihiro Mukai, Tomoki Iwanaga, Daisuke Takagi, Kazuo Saito, Toshikazu Taura
  • Publication number: 20190284524
    Abstract: Provided is a cell tissue producing method including: a cell adhesive portion forming step of forming a cell adhesive portion formed of a cell adhesive material and having a predetermined shape at a predetermined position over a substrate having a cell non-adhesive surface; and a cell locating step of discharging a cell suspension containing at least cells and a cell drying inhibitor onto the cell adhesive portion in the form of a liquid droplet to locate the cells.
    Type: Application
    Filed: March 12, 2019
    Publication date: September 19, 2019
    Inventors: Hidekazu YAGINUMA, Naoki SATOH, Tomoyuki ARATANI, Chihiro KUBO, Daisuke TAKAGI, Momoko SHIONOIRI, Natsuko IWASHITA
  • Publication number: 20190283402
    Abstract: Provided is a liquid droplet forming device including: a liquid container capable of containing a liquid; a membranous member disposed at a bottom of the liquid container and including a discharging hole; a deforming unit capable of deforming the membranous member; and a driving unit configured to drive the deforming unit by outputting a discharging signal for deforming the membranous member to discharge the liquid or a suppressing signal for suppressing residual vibration of the membranous member, wherein the suppressing signal is a signal based on natural vibration period T0 of the membranous member, wherein an amplitude of the suppressing signal is lower than or equal to an amplitude of the discharging signal, and wherein interval time Ti from when outputting of the discharging signal is ended until when outputting of the suppressing signal is started satisfies a formula: Ti=(m?½)×T0, where m represents a positive integer.
    Type: Application
    Filed: March 7, 2019
    Publication date: September 19, 2019
    Inventors: Yuzuru KURAMOCHI, Daisuke Takagi, Satoshi Okano, Takahiko Matsumoto, Koichi Muramatsu, Satoshi Nakazawa, Ryuya Mashiko
  • Publication number: 20190232661
    Abstract: Provided is a liquid droplet discharging unit including a liquid droplet discharging port, a liquid retaining section including the liquid droplet discharging port, two tubes disposed in communication with the liquid retaining section, and first and second liquid sucking/ejecting members coupled to the two tubes respectively, wherein while the first liquid sucking/ejecting member is in a sucking or ejecting state, the second liquid sucking/ejecting member is in a non-sucking or non-ejecting state correspondingly.
    Type: Application
    Filed: January 3, 2019
    Publication date: August 1, 2019
    Inventors: Takeshi AKAI, Hiroshi Fujie, Keisuke Sugiyama, Daisuke Takagi, Hiroki Somada, Manabu Yamanaka
  • Publication number: 20190194498
    Abstract: The present invention provides an optically clear adhesive sheet capable of reducing peeling after bonding due to causes such as outgassing and having excellent environment resistance, using a polyurethane that has excellent flexibility and is capable of giving a thick film. The optically clear adhesive sheet contains a polyurethane, the polyurethane being a cured product of a polyurethane composition containing a polyol component and a polyisocyanate component, the polyisocyanate component including a hydrophilic polyisocyanate, the optically clear adhesive sheet having a moisture content of 400 ppm or lower as measured by a Karl Fischer method.
    Type: Application
    Filed: August 16, 2017
    Publication date: June 27, 2019
    Applicant: BANDO CHEMICAL INDUSTRIES, LTD.
    Inventors: Daisuke TAKAGI, Yuki HOSOKAWA, Yuzo OKUNO, Masaya MIYAKE
  • Publication number: 20190111411
    Abstract: The purpose of the present invention is to provide a particulate water absorbing agent having both a high water absorption multiplying factor and a high water absorption rate and a method for manufacturing the same. The present invention is a particulate water absorbing agent for which CRC is 30 to 50 g/g, wherein the weight average particulate diameter (D50) is 200-600 ?m, and the DRC index given by the following formula is a specific value (for example, 43, 30, or 20) or less: DRC index=(49?DRC5min [g/g])/(D50 [?m]/1000).
    Type: Application
    Filed: March 28, 2017
    Publication date: April 18, 2019
    Inventors: Kazushi TORII, Mariko TAMAKI, Daisuke TAKAGI, Yuichiro HORIMOTO, Taishi KOBAYASHI, Taku FUJIMOTO, Takahiro KITANO, Taku IWAMURA, Hiroki KAWADA, Hiroyuki GOTO, Yasuhisa NAKAJIMA, Hiroyuki IKEUCHI
  • Publication number: 20190025185
    Abstract: A particle counting apparatus is provided that includes: a droplet discharger configured to discharge a droplet containing at least one luminescent particle capable of emitting light upon receiving light; a light irradiator configured to irradiate the droplet discharged by the droplet discharger with light; at least one light receiver configured to receive light emitted by the at least one luminescent particle irradiated with the light emitted by the light irradiator; and circuitry configured to count luminescent particles contained in the droplet based on the light received by the at least one light receiver, the circuitry being configured to measure a presence or absence of the luminescent particles contained in the droplet; and to measure a number of the luminescent particles contained in the droplet.
    Type: Application
    Filed: July 20, 2018
    Publication date: January 24, 2019
    Inventors: Ikuo KATOH, Manabu SEO, Yunong JI, Nobuaki TOYOSHIMA, Hiroki SOMADA, Ryuya MASHIKO, Satoshi IZUMI, Takahiko MATSUMOTO, Daisuke TAKAGI
  • Publication number: 20180340880
    Abstract: A liquid droplet forming device includes a liquid droplet discharger that discharges, as a liquid droplet, a particle suspension liquid in which one or more fluorescent particles are suspended; a light source for irradiating light onto the flying liquid droplet discharged from the liquid droplet discharger; a photodetector that receives fluorescence that is emitted by the one or more fluorescent particles included in the liquid droplet in response to the light as excitation light; and a particle number detector that detects a number of the one or more fluorescent particles included in the liquid droplet based on information from the photodetector.
    Type: Application
    Filed: July 9, 2018
    Publication date: November 29, 2018
    Applicant: Ricoh Company, Ltd.
    Inventors: Takahiko MATSUMOTO, Manabu SEO, Daisuke TAKAGI
  • Publication number: 20180298132
    Abstract: To provide a disposable diaper enabling reduction in re-wet amount and having an excellent speed of incorporating liquid regardless of concentration and configuration of a water-absorbing agent in an absorbent material. A water-absorbing agent having excellent Gel Capillary Absorption (GCA) and Free Gel Bed Permeability (FGBP) is obtained by crushing a crosslinked hydrogel polymer obtained in a polymerization step to have a specific weight average particle diameter while fluid retention capacity and a surface tension of a water-absorbing agent are adjusted in a specific range, drying the crushed crosslinked hydrogel polymer, and then adding a liquid permeability enhancer thereto during surface crosslinking or after surface crosslinking.
    Type: Application
    Filed: June 20, 2016
    Publication date: October 18, 2018
    Applicant: Nippon Shokubai Co., Ltd.
    Inventors: Tsuyoshi YORINO, Daisuke TAKEDA, Yoshitaka IKEUCHI, Shigeru SAKAMOTO, Yoshihiro SHOBO, Yoshifumi ADACHI, Ryota WAKABAYASHI, Daisuke TAKAGI, Sachie KITABATA
  • Patent number: 10039190
    Abstract: A coil component includes a mounting surface that is a side mounted on a mounting board and a detecting surface that is a side generating a magnetic field to detect a distance from a detected conductor. The coil component has a coil conductor formed into a spiral shape, and a magnetic resin disposed on the mounting surface side of the coil conductor without being disposed on the detecting surface side of the coil conductor.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: July 31, 2018
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Yoshimasa Yoshioka, Kenji Nishiyama, Daisuke Takagi
  • Patent number: 10029251
    Abstract: A droplet forming apparatus includes a liquid retaining portion that retains cell suspension containing cells; a membrane member, provided with a nozzle, that discharges the cell suspension retained in the liquid retaining portion from the nozzle as a droplet by oscillation; and an open portion that opens the liquid retaining portion to atmosphere.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: July 24, 2018
    Assignee: Ricoh Company, Ltd.
    Inventors: Manabu Seo, Yoshio Uchikata, Daisuke Takagi, Yuzuru Kuramochi
  • Publication number: 20180169650
    Abstract: A multi-well plate lid includes a well-side surface to cover a plurality of wells of a multi-well plate. The well-side surface includes two or more regions with different adhesive strengths to the multi-well plate.
    Type: Application
    Filed: December 19, 2017
    Publication date: June 21, 2018
    Inventors: Hiroki Somada, Satoshi Izumi, Takahiko Matsumoto, Daisuke Takagi
  • Patent number: 9979258
    Abstract: A vibration motor, comprising a base part which expands perpendicular to a vertical center axis; a shaft which protrudes upward along the center axis, a lower end of the shaft being coupled to the base part; a circuit board disposed on the base part; coil parts which are attached onto the circuit board, and face each other in a radial direction across the shaft and a gap; a bearing part which is rotatably attached to the shaft at an upper side than the coil parts; a rotor holder which is attached to the bearing part; a magnet part which is attached to the rotor holder; an eccentric weight which is attached to the rotor holder; a spacer which is attached to the shaft at a portion between the bearing part and the coil part, a top surface of the spacer being in contact with a bottom surface of the bearing part; and a cover part which covers at least a portion of the upper and lateral sides of the rotor holder and the eccentric weight, and is fixed to an upper end portion of the shaft and an edge portion of the b
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: May 22, 2018
    Assignee: NIDEC SEIMITSU CORPORATION
    Inventors: Daisuke Takagi, Naoki Kanai
  • Patent number: 9919533
    Abstract: A liquid droplet forming apparatus includes a liquid retention unit configured to retain particle suspension liquid in which precipitated particles are suspended; a membrane member, in which a nozzle is formed, configured to discharge the particle suspension liquid retained in the liquid retention unit, as a liquid droplet, by vibration from the nozzle; and a particle state detection unit configured to detect, from a side of the liquid retention unit, a particle state of the precipitated particle around the nozzle in the particle suspension liquid.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: March 20, 2018
    Assignee: Ricoh Company, Ltd.
    Inventors: Manabu Seo, Satoshi Nakazawa, Yuzuru Kuramochi, Daisuke Takagi, Takahiko Matsumoto
  • Publication number: 20170312886
    Abstract: It is an object of the present invention to provide an abrasive material which enables: processing efficiency and finished planarity of a substrate material to be simultaneously improved at a high level; polishing costs to be reduced; and a difficult-to-process substrate composed of sapphire or silicon carbide to be polished efficiently and precisely. An abrasive material comprises a substrate and an abrasive layer laminated on a front face side of the substrate, wherein the abrasive layer includes a binder containing an inorganic substance as a principal component, and abrasive particles dispersed in the binder, wherein a front face of the abrasive layer comprises a plurality of regions provided through dividing by grooves, and wherein a maximum peak height (Rp) on the front face of the abrasive layer is no less than 2.5 ?m and no greater than 70 ?m.
    Type: Application
    Filed: October 6, 2015
    Publication date: November 2, 2017
    Applicant: BANDO CHEMICAL INDUSTRIES, LTD.
    Inventors: Fumihiro MUKAI, Tomoki IWANAGA, Daisuke TAKAGI, Kazuo SAITO, Toshikazu TAURA
  • Publication number: 20170267975
    Abstract: Provided is a three-dimensional culture structure that is excellent in cell adhesion and cell stretching and can be produced efficiently. The three-dimensional culture structure includes cells, a cell support material configured to support the cells, and bioaffinity particles. In a preferable mode, the bioaffinity particles are exposed from at least part of the surface of the cell support material, or the bioaffinity particles are protruded from the cell support material, or a surface area occupation rate at which the bioaffinity particles are exposed is 20% or greater of the entire surface of the three-dimensional culture structure, or the bioaffinity particles are dispersed in the cell support material.
    Type: Application
    Filed: March 15, 2017
    Publication date: September 21, 2017
    Applicant: RICOH COMPANY, LTD.
    Inventors: Aino Hasegawa, Daisuke Takagi, Shigeo Hatada, Yuuma Usui, Chihiro Kubo, Shusaku Shiomoto, Waka Lin
  • Patent number: 9757944
    Abstract: Provided is a liquid jet head, including a flow path including a first member, a resin layer, and a second member, wherein the resin layer contains a cured product of a resin composition containing an epoxy compound represented by General Formula (1), a polythiol compound having 2 or more thiol groups in a molecule thereof, and a specific imidazole compound, where in General Formula (1), L is an integer of 0 or greater but less than 3, m is a positive number of 0.1 or greater but less than 50, R1 represents any one of a hydrogen atom, and an alkyl group having 1 to 4 carbon atoms, and R2 represents a substituent represented by a formula below where R3 and R4 each represent any one of hydrogen atom, and a non-substituted or fluorine-substituted methyl group, and n is an integer of 4 to 12.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: September 12, 2017
    Assignee: Ricoh Company, Ltd.
    Inventors: Daisuke Takagi, Hisashi Habashi, Tomoyuki Aratani, Tatsuya Sameshima, Ryo Ogawa, Takuya Matsuda
  • Publication number: 20170187261
    Abstract: A vibration motor includes a base portion arranged to extend perpendicularly to a central axis extending in a vertical direction; a shaft having a lower end fixed to the base portion, and arranged to project upward along the central axis; a circuit board; a coil portion; a bearing portion; a rotor holder; a magnet portion; an eccentric weight; a cover portion; and a motor electrode portion electrically connected to the circuit board, and arranged to project downward below a lower surface of the base portion. The entire base portion and the entire circuit board are arranged inside of an outer circumferential edge of a lower end of the cover portion.
    Type: Application
    Filed: December 21, 2016
    Publication date: June 29, 2017
    Inventor: Daisuke TAKAGI
  • Publication number: 20170120604
    Abstract: A liquid droplet forming apparatus includes a liquid retention unit configured to retain particle suspension liquid in which precipitated particles are suspended; a membrane member, in which a nozzle is formed, configured to discharge the particle suspension liquid retained in the liquid retention unit, as a liquid droplet, by vibration from the nozzle; and a particle state detection unit configured to detect, from a side of the liquid retention unit, a particle state of the precipitated particle around the nozzle in the particle suspension liquid.
    Type: Application
    Filed: October 26, 2016
    Publication date: May 4, 2017
    Inventors: Manabu SEO, Satoshi NAKAZAWA, Yuzuru KURAMOCHI, Daisuke TAKAGI, Takahiko MATSUMOTO
  • Publication number: 20170043580
    Abstract: Provided is a liquid jet head, including a flow path including a first member, a resin layer, and a second member, wherein the resin layer contains a cured product of a resin composition containing an epoxy compound represented by General Formula (1), a polythiol compound having 2 or more thiol groups in a molecule thereof, and a specific imidazole compound, where in General Formula (1), L is an integer of 0 or greater but less than 3, m is a positive number of 0.1 or greater but less than 50, R1 represents any one of a hydrogen atom, and an alkyl group having 1 to 4 carbon atoms, and R2 represents a substituent represented by a formula below where R3 and R4 each represent any one of hydrogen atom, and a non-substituted or fluorine-substituted methyl group, and n is an integer of 4 to 12.
    Type: Application
    Filed: May 19, 2015
    Publication date: February 16, 2017
    Inventors: Daisuke TAKAGI, Hisashi HABASHI, Tomoyuki ARATANI, Tatsuya SAMESHIMA, Ryo OGAWA, Takuya MATSUDA