Patents by Inventor Yusuke Nagai

Yusuke Nagai 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: 20180136174
    Abstract: A preparative chromatograph for collecting target components in a sample temporally separated in a column of a chromatograph in respective preparative containers is provided with: a detection unit having a flow cell accommodated in a housing and a detector for detecting a component that passes through the flow cell; a first pipe that connects the column and an inlet end of the flow cell; a flow path switching unit accommodated in the housing and configured to selectively flow the components that passed through the flow cell through a preparative flow path that is a flow path connected to the preparative containers or a waste liquid flow path; and a second pipe accommodated in the housing and connecting an outlet end of the flow cell and the flow path switching unit.
    Type: Application
    Filed: June 1, 2015
    Publication date: May 17, 2018
    Inventors: Takafumi Nakamura, Tadayuki Yamaguchi, Yusuke Nagai
  • Publication number: 20180088027
    Abstract: Measurement light is cast from a light-casting unit into a flow cell. The light is repeatedly reflected at an outer surface of the flow cell. A detecting unit including a connecting element and a photodetector element is provided in contact with the outer surface of the flow cell. Since the connecting element is made of a material whose refractive index is higher than that of the wall of the flow cell, the light is extracted from the flow cell at the contact position of the connecting element, to be detected by the photodetector element. A shift of the attachment position of the detecting unit along the axis of the flow cell changes the optical path length of the measurement light. A high-sensitivity absorption measurement can be performed by controlling the optical path length by merely changing the attachment position of the detecting unit, without replacing the flow cell.
    Type: Application
    Filed: April 24, 2015
    Publication date: March 29, 2018
    Applicant: Shimadzu Corporation
    Inventor: Yusuke Nagai
  • Patent number: 9877368
    Abstract: Provided is an optical analyzer for performing a feedback control on the amount of light emitted from an LED as a light source, in which the configuration of an optical system is made simple and the degree of freedom in optical system arrangement is secured. An optical member 2 for focusing most of light while discharging part of the light as unfocused light is provided on an optical path from a light casting unit 1 to a sample cell 3. The optical member 2 can be achieved with a simple configuration, for example, two ball lenses spaced apart by a predetermined distance from each other. The light focused by the optical member 2 is cast as measurement light into the sample cell 3. Meanwhile, a second photodetector 5 is arranged at a position where the unfocused light reaches.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: January 23, 2018
    Assignee: SHIMADZU CORPORATION
    Inventors: Yusuke Nagai, Keisuke Ogawa, Masato Watanabe, Kumiko Jingu, Masanori Fujiwara, Tomoyuki Yamazaki
  • Patent number: 9797826
    Abstract: An optical filter 4 is placed in an optical path between a light source unit 1 using a deep ultraviolet LED as a light source and a sample cell 2. The optical filter 4 is a shortpass filter that allows passage of light of a main peak located within a deep ultraviolet region while blocking light of an unwanted peak located within a visible region. The temporal change in the amount of light of the unwanted peak is considerably greater than that of the main peak. The optical filter 4 blocks the former light whose amount considerably changes with time. As a result, the influence of the noise and drift originating from the LED on the detection signal obtained in a detector 3 is dramatically reduced, so that the analytical accuracy is improved.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: October 24, 2017
    Assignee: SHIMADZU CORPORATION
    Inventor: Yusuke Nagai
  • Publication number: 20170248562
    Abstract: Provided is an analytical measurement device system 10 having a plurality of units (liquid-sending pump 12; detector 15) including: a sensor (flow sensor 121; light amount detector 151) provided in at least one unit among the plurality of units, for detecting the condition of a specific portion of the unit; a determination section (flow rate determiner 122; light amount determiner 152) provided in the unit, for receiving a signal from the sensor and for determining an overall condition of the unit based on a predetermined determination criterion; a storage section (flow-rate determination information storage section 123; light-amount determination information section 153) provided in the unit, for storing the determination criterion and a result of the determination by the determination section; and a display section (flow-rate determination result display section 124; light-amount determination result display section 154) provided in the unit, for displaying the determination result.
    Type: Application
    Filed: February 1, 2017
    Publication date: August 31, 2017
    Applicant: SHIMADZU CORPORATION
    Inventors: Yusuke Nagai, Masato Watanabe
  • Publication number: 20170119825
    Abstract: The present invention provides a bone formation promoter having high biological safety and capable of promoting bone formation. The bone formation promoter of the present invention includes a self-assembling peptide capable of forming a ?-sheet structure in an aqueous solution having a neutral pH; and a bone chip. A sum of charges of amino acid residues constituting the self-assembling peptide at pH 7.0 is unequal to 0.
    Type: Application
    Filed: June 29, 2015
    Publication date: May 4, 2017
    Applicants: NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITY, MENICON CO., LTD.
    Inventors: Kei ANDO, Naoki ISHIGURO, Shiro IMAGAMA, Zenya ITO, Yasuhiro YOKOYAMA, Hidenori YOKOI, Yusuke NAGAI
  • Publication number: 20170092411
    Abstract: A magnetic material is pressure-molded using dies into a compact having an H-shaped cross section, constituted by a pair of flange parts that are facing each other and a web part connecting the pair of flange parts. Next, a cured product of the compact is turned around a rotational shaft passing through the center parts of the principal faces of the flange parts, and the web part is ground, to form a drum-type ground product having a pair of flange parts on both ends of a shaft part in a manner facing each other. Then, the ground product is heat-treated to obtain a drum core of a magnetic body. On the drum core, terminal electrodes are provided and a conductive wire with sheath is wound around the shaft part, after which an exterior part is given, to obtain a coil component.
    Type: Application
    Filed: September 26, 2016
    Publication date: March 30, 2017
    Inventors: Makoto SHIMIZU, Yusuke NAGAI
  • Patent number: 9536645
    Abstract: A ferrite composition comprises a main component and a sub component. The main component is comprised of 40.0 to 49.8 mol % iron oxide in terms of Fe2O3, 5.0 to 14.0 mol % copper oxide in terms of CuO, 0 to 32.0 mol % zinc oxide in terms of ZnO, and a remaining part of nickel oxide. The sub component includes 0.5 to 4.0 wt % tin oxide in terms of SnO2, 0.10 to 1.00 wt % bismuth oxide in terms of Bi2O3, and 0.21 to 3.00 wt % cobalt oxide in terms of Co3O4, with respect to the main component.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: January 3, 2017
    Assignee: TDK CORPORATION
    Inventors: Ryuichi Wada, Kouichi Kakuda, Yukari Akita, Yukio Takahashi, Yusuke Nagai, Takashi Suzuki, Takahiro Sato
  • Publication number: 20160334707
    Abstract: To provide a negative photosensitive resin composition for an optical element having good ink repellency and capable of reducing a residue at opening sections, a cured resin film for an optical element having good ink repellency, partition walls for an optical element capable of forming a high-precision pattern, and an optical element having such partition walls. A negative photosensitive resin composition comprising a photocurable alkali-soluble resin or alkali-soluble monomer (A), a photopolymerization initiator (B), a reactive ultraviolet absorber (C), a polymerization inhibitor (D), and an ink repellent (E); a cured film and partition walls formed by using the negative photosensitive resin composition; or an organic EL element, a quantum dot display, a TFT array, or a thin-film solar cell, having such partition walls positioned between a plurality of dots and their adjacent dots on a substrate surface.
    Type: Application
    Filed: July 28, 2016
    Publication date: November 17, 2016
    Applicant: Asahi Glass Company, Limited
    Inventors: Yusuke NAGAI, Hideyuki TAKAHASHI, Masayuki KAWASHIMA
  • Publication number: 20160313248
    Abstract: Light emitted from a light casting unit 1 including an LED as its light source is cast into a sample cell 2, and a photodetector 3 is placed at a position where the resultant passing light can be detected. The LED is driven to blink, and a data extracting section 71 extracts data obtained in a period in which the LED is turned on, as data (absorbance data) in which absorption of light by the sample solution is reflected. Moreover, in the case where a fluorescent component is contained in the sample solution, fluorescent light is emitted by the cast light serving as excitation light. Even after the excitation light ceases, the emission of the fluorescent light continues for a short time, and hence the data extracting section 71 extracts data obtained immediately after the LED is turned off, as data (fluorescence data) in which the fluorescent light is reflected.
    Type: Application
    Filed: April 22, 2016
    Publication date: October 27, 2016
    Applicant: SHIMADZU CORPORATION
    Inventors: Yusuke NAGAI, Keisuke OGAWA, Masato WATANABE, Kumiko JINGU, Masanori FUJIWARA, Tomoyuki YAMAZAKI
  • Publication number: 20160234904
    Abstract: Provided is an optical analyzer for performing a feedback control on the amount of light emitted from an LED as a light source, in which the configuration of an optical system is made simple and the degree of freedom in optical system arrangement is secured. An optical member 2 for focusing most of light while discharging part of the light as unfocused light is provided on an optical path from a light casting unit 1 to a sample cell 3. The optical member 2 can be achieved with a simple configuration, for example, two ball lenses spaced apart by a predetermined distance from each other. The light focused by the optical member 2 is cast as measurement light into the sample cell 3. Meanwhile, a second photodetector 5 is arranged at a position where the unfocused light reaches.
    Type: Application
    Filed: February 4, 2016
    Publication date: August 11, 2016
    Applicant: SHIMADZU CORPORATION
    Inventors: Yusuke NAGAI, Keisuke OGAWA, Masato WATANABE, Kumiko JINGU, Masanori FUJIWARA, Tomoyuki YAMAZAKI
  • Publication number: 20160187250
    Abstract: An optical filter 4 is placed in an optical path between a light source unit 1 using a deep ultraviolet LED as a light source and a sample cell 2. The optical filter 4 is a shortpass filter that allows passage of light of a main peak located within a deep ultraviolet region while blocking light of an unwanted peak located within a visible region. The temporal change in the amount of light of the unwanted peak is considerably greater than that of the main peak. The optical filter 4 blocks the former light whose amount considerably changes with time. As a result, the influence of the noise and drift originating from the LED on the detection signal obtained in a detector 3 is dramatically reduced, so that the analytical accuracy is improved.
    Type: Application
    Filed: October 26, 2015
    Publication date: June 30, 2016
    Applicant: SHIMADZU CORPORATION
    Inventor: Yusuke Nagai
  • Publication number: 20150315242
    Abstract: Provide are a peptide gel with practically sufficient mechanical strength and a self-assembling peptide capable of forming the peptide gel. The self-assembling peptide is formed of the following amino acid sequence: a1b1c1b2a2b3db4a3b5c2b6a4 where: a1 to a4 each represent a basic amino acid residue; b1 to b6 each represent an uncharged polar amino acid residue and/or a hydrophobic amino acid residue, provided that at least five thereof each represent a hydrophobic amino acid residue; c1 and c2 each represent an acidic amino acid residue; and d represents a hydrophobic amino acid residue.
    Type: Application
    Filed: July 14, 2015
    Publication date: November 5, 2015
    Inventors: Yusuke Nagai, Hidenori Yokoi, Koji Uesugi, Keiji Naruse, Shuguang Zhang
  • Publication number: 20150125611
    Abstract: Provide are a peptide gel with practically sufficient mechanical strength and a self-assembling peptide capable of forming the peptide gel. The self-assembling peptide is formed of the following amino acid sequence: a1b1c1b2a2b3db4a3b5c2b6a4 where: a1 to a4 each represent a basic amino acid residue; b1 to b6 each represent an uncharged polar amino acid residue and/or a hydrophobic amino acid residue, provided that at least five thereof each represent a hydrophobic amino acid residue; c1 and c2 each represent an acidic amino acid residue; and d represents a hydrophobic amino acid residue.
    Type: Application
    Filed: January 12, 2015
    Publication date: May 7, 2015
    Applicants: Menicon Co., Ltd., National University Corporation Okayama University
    Inventors: Yusuke NAGAI, Hidenori Yokoi, Koji Uesugi, Keiji Naruse
  • Publication number: 20150102254
    Abstract: A ferrite composition comprises a main component and a sub component. The main component is comprised of 40.0 to 49.8 mol % iron oxide in terms of Fe2O3, 5.0 to 14.0 mol % copper oxide in terms of CuO, 0 to 32.0 mol % zinc oxide in terms of ZnO, and a remaining part of nickel oxide. The sub component includes 0.5 to 4.0 wt % tin oxide in terms of SnO2, 0.10 to 1.00 wt % bismuth oxide in terms of Bi2O3, and 0.21 to 3.00 wt % cobalt oxide in terms of Co3O4, with respect to the main component.
    Type: Application
    Filed: October 7, 2014
    Publication date: April 16, 2015
    Inventors: Ryuichi WADA, Kouichi KAKUDA, Yukari AKITA, Yukio TAKAHASHI, Yusuke NAGAI, Takashi SUZUKI, Takahiro SATO
  • Patent number: 8951974
    Abstract: Provide are a peptide gel with practically sufficient mechanical strength and a self-assembling peptide capable of forming the peptide gel. The self-assembling peptide is formed of the following amino acid sequence: a1b1c1b2a2b3 db4a3b5c2b6a4 where: a1 to a4 each represent a basic amino acid residue; b1 to b6 each represent an uncharged polar amino acid residue and/or a hydrophobic amino acid residue, provided that at least five thereof each represent a hydrophobic amino acid residue; c1 and c2 each represent an acidic amino acid residue; and d represents a hydrophobic amino acid residue.
    Type: Grant
    Filed: March 26, 2014
    Date of Patent: February 10, 2015
    Assignees: Menicon Co., Ltd., National University Corporation Okayama University
    Inventors: Yusuke Nagai, Hidenori Yokoi, Koji Uesugi, Keiji Naruse
  • Publication number: 20150022833
    Abstract: Disclosed is an image forming apparatus for performing color forming processing which forms a color image on one side or both sides of output paper, or performing monochrome forming processing which forms a monochrome image on one side or both sides of output paper, based on unit image data concerning a page. The image forming apparatus includes: a one-side determination unit for determining whether output data concerning a plurality of sheets are to be image-formed on one side or both sides; a color determination unit for determining whether the unit image data to be image-formed is color image data or monochrome image data based on the determination result by the one-side determination unit; and a forced forming unit for continuously forming images of unit image data concerning a specific number of sheets in the color forming processing based on the determination results by the one-side determination unit and the color determination unit.
    Type: Application
    Filed: July 16, 2014
    Publication date: January 22, 2015
    Inventors: Yusuke Nagai, Hiroyuki Ataka, Masaki Higashiura
  • Patent number: 8892655
    Abstract: A network scanner for transmitting image data as read from a document, which has been stored in a predetermined memory includes: a transmission part specifying means for specifying a part of the image data to be transmitted to said terminal(s); and specified data transmission means for transmitting the part of the image data as specified by the transmission part specifying means to the terminal(s). According to the foregoing structure, the load on communicating can be significantly reduced.
    Type: Grant
    Filed: November 5, 2003
    Date of Patent: November 18, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masahiro Sakiyama, Yusuke Nagai
  • Publication number: 20140287200
    Abstract: To provide a curable composition which has favorable insulating property and liquid repellency, and from which a cured film having liquid repellency capable of being sufficiently converted to be liquid-philic even by irradiation with ultraviolet light having a wavelength of at least 300 nm, can be formed; an article having a cured film obtained by curing the curable composition and its production process. A cured film is formed by using a curable composition comprising a polymer having units (u1) based on a compound represented by the following formula (m1): wherein R1=a hydrogen atom, a methyl group or the like; R2=a bivalent organic group or the like; Cf=a C1-20 fluoroalkyl group or the like, X?O, S, N or NH; m=1 to 2; n=0 to 4; k=0 to 1; and Z=a (meth)acryloyl group or the like.
    Type: Application
    Filed: June 5, 2014
    Publication date: September 25, 2014
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: MASAHIRO ITO, KAORI TSURUOKA, YASUHIRO KUWANA, YUSUKE NAGAI, MIYAKO SASAKI
  • Publication number: 20140286888
    Abstract: Provide are a peptide gel with practically sufficient mechanical strength and a self-assembling peptide capable of forming the peptide gel. The self-assembling peptide is formed of the following amino acid sequence: a1b1c1b2a2b3 db4a3b5c2b6a4 where: a1 to a4 each represent a basic amino acid residue; b1 to b6 each represent an uncharged polar amino acid residue and/or a hydrophobic amino acid residue, provided that at least five thereof each represent a hydrophobic amino acid residue; c1 and c2 each represent an acidic amino acid residue; and d represents a hydrophobic amino acid residue.
    Type: Application
    Filed: March 26, 2014
    Publication date: September 25, 2014
    Applicants: NATIONAL UNIVERSITY CORPORATION OKAYAMA UNIVERSITY, MENICON CO., LTD.
    Inventors: Yusuke NAGAI, Hidenori Yokoi, Koji Uesugi, Keiji Naruse