Patents by Inventor Yusuke Yamauchi

Yusuke Yamauchi 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: 20200153534
    Abstract: An optical reception apparatus (1) of the present invention includes: a local oscillator (11) outputting local oscillation light (22); an optical mixer (12) receiving a multiplexed optical signal (21) and the local oscillation light, and selectively outputting an optical signal (23) corresponding to the wavelength of the local oscillation light from the multiplexed optical signal; a photoelectric converter (13) converting the optical signal (23) output from the optical mixer into an electric signal (24); a variable gain amplifier (15) amplifying the electric signal (24) to generate an output signal (25) whose output amplitude is amplified to a certain level; a gain control signal generating circuit (16) generating a gain control signal (26) for controlling the gain of the variable gain amplifier (15); and a monitor signal generating unit (17) generating a monitor signal (27) corresponding to the power of the optical signal (23) using the gain control signal (26).
    Type: Application
    Filed: January 13, 2020
    Publication date: May 14, 2020
    Inventor: Yusuke YAMAUCHI
  • Publication number: 20200078754
    Abstract: An object of the present invention is to provide a PVA-based resin having a small distribution in degree of heat treatment in which the degree of heat treatment does not depend on a particle diameter. The polyvinyl alcohol-based resin of the present invention has an absorbance at 280 nm of 0.3 or more when being made to a 0.1 wt % aqueous solution and satisfies the following Formula (1): 0.9?X1/Y1?1.2 (in Formula (1), X1 represents an absorbance at 320 nm of a 0.1 wt % aqueous solution of a polyvinyl alcohol-based resin having a particle diameter larger than 1000 ?m and 1680 ?m or less, and Y1 represents an absorbance at 320 nm of a 0.1 wt % aqueous solution of a polyvinyl alcohol-based resin having a particle diameter larger than 212 ?m and 500 ?m or less).
    Type: Application
    Filed: November 13, 2019
    Publication date: March 12, 2020
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Yusuke MURAMATSU, Yoshihito YAMAUCHI
  • Patent number: 10564082
    Abstract: According to improvement of the receptor layer of various sensors of the type for detecting physical parameters (for example, a surface stress sensor, QCM, and SPR), all of high sensitivity, selectivity, and durability are achieved simultaneously. A porous material or a particulate material, e.g., nanoparticles, is used in place of a uniform membrane which has been conventionally used as a receptor layer. Accordingly, the sensitivity can be controlled by changing the membrane thickness of the receptor layer, the selectivity can be controlled by changing a surface modifying group to be fixed on the porous material or particulate material, and the durability can be controlled by changing the composition and surface properties of the porous material or particulate material.
    Type: Grant
    Filed: August 31, 2015
    Date of Patent: February 18, 2020
    Assignee: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Kota Shiba, Genki Yoshikawa, Yusuke Yamauchi, Norihiro Suzuki, Gaku Imamura, Kosuke Minami, Hamish Hei-Man Yeung
  • Publication number: 20200047966
    Abstract: The delaminatable container is capable of suppressing deterioration of the contents under high-temperature environment. The delaminatable container includes a container body; and a tubular outer case being installed in the container body; wherein: the container body includes an outer shell and an inner bag, and the inner bag shrinks as contents decrease.
    Type: Application
    Filed: March 14, 2018
    Publication date: February 13, 2020
    Applicant: KYORAKU CO., LTD.
    Inventors: Yoshio YAMAUCHI, Teruhisa HANAFUSA, Kouichiro YOSHIDA, Yusuke HIRAINA
  • Patent number: 10554323
    Abstract: An optical reception apparatus (1) of the present invention includes: a local oscillator (11) outputting local oscillation light (22); an optical mixer (12) receiving a multiplexed optical signal (21) and the local oscillation light, and selectively outputting an optical signal (23) corresponding to the wavelength of the local oscillation light from the multiplexed optical signal; a photoelectric converter (13) converting the optical signal (23) output from the optical mixer into an electric signal (24); a variable gain amplifier (15) amplifying the electric signal (24) to generate an output signal (25) whose output amplitude is amplified to a certain level; a gain control signal generating circuit (16) generating a gain control signal (26) for controlling the gain of the variable gain amplifier (15); and a monitor signal generating unit (17) generating a monitor signal (27) corresponding to the power of the optical signal (23) using the gain control signal (26).
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: February 4, 2020
    Assignee: NEC Corporation
    Inventor: Yusuke Yamauchi
  • Patent number: 10510493
    Abstract: This core-shell composite (10) is provided with a core (11) formed from a porous carbon body having a large number of pores from the interior through to the surface, and a shell layer (12) formed from conductive polymer nanorods (12a) that extend outward from the cavities of the pores (11a) on the surface of the core. The present invention provides the core-shell composite (10), to which electrolyte ions can be efficiently adsorbed or doped, a method for producing the core-shell composite, as well as an electrode material, a catalyst, an electrode, a secondary battery and an electric double-layer capacitor that use the core-shell composite.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: December 17, 2019
    Assignees: TPR CO., LTD., NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Naoya Kobayashi, Yusuke Yamauchi, Rahul Salunkhe, Jing Tang
  • Publication number: 20190353190
    Abstract: An object is to provide a bolt fastening structure which is resistant to loosening even in an environment with vibration. A fastening structure 100 according to the invention of the present application is configured such that a male screw 10 having a thread section 11 with a thread ridge 11a and a thread groove 11b, and a female screw 20 forming a recess 20 in a first member 300 serving as a fastening target, the female screw 20 having a threaded section 21 formed in the recess 20 and engaged with the thread section 11, are in a fastened state. In the fastened state, a tip portion 12 forming a leading end of the male screw 10 is in point contact with a bottom surface 23a of the recess 20.
    Type: Application
    Filed: February 22, 2018
    Publication date: November 21, 2019
    Applicant: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
    Inventors: Yasufumi KOJIMA, Sumito HORI, Katsuya TEJIMA, Yusuke KIDO, Ryoji AKAMA, Shigekazu YAMAUCHI
  • Publication number: 20190263938
    Abstract: A water-soluble hydroxyethyl cellulose is produced by reacting ethylene oxide with an alkali cellulose such that an average additional molar number of ethylene oxide per glucose unit of the alkali cellulose is 0.1 to 1.0 mol to prepare hydroxyethyl cellulose, and mechanically pulverizing the prepared hydroxyethyl cellulose. According to this producing method, it is possible to produce a water-soluble hydroxyethyl cellulose from an alkali cellulose with the usage of ethylene oxide reduced. In addition, the water-soluble hydroxyethyl cellulose produced by this producing method has a loss tangent (tan ?) of a 2% by mass aqueous solution of less than 1.0 in a frequency range of 0.1 to 100 rad/s in general, and exhibits a gel physical property.
    Type: Application
    Filed: September 19, 2017
    Publication date: August 29, 2019
    Applicant: SUMITOMO SEIKA CHEMICALS CO., LTD.
    Inventors: Yoh YAMAUCHI, Tsuyoshi MASUDA, Yusuke NISHIKAWA, Yuji SHINGAI
  • Publication number: 20190253173
    Abstract: An optical reception apparatus (1) of the present invention includes: a local oscillator (11) outputting local oscillation light (22); an optical mixer (12) receiving a multiplexed optical signal (21) and the local oscillation light, and selectively outputting an optical signal (23) corresponding to the wavelength of the local oscillation light from the multiplexed optical signal; a photoelectric converter (13) converting the optical signal (23) output from the optical mixer into an electric signal (24); a variable gain amplifier (15) amplifying the electric signal (24) to generate an output signal (25) whose output amplitude is amplified to a certain level; a gain control signal generating circuit (16) generating a gain control signal (26) for controlling the gain of the variable gain amplifier (15); and a monitor signal generating unit (17) generating a monitor signal (27) corresponding to the power of the optical signal (23) using the gain control signal (26).
    Type: Application
    Filed: December 13, 2018
    Publication date: August 15, 2019
    Inventor: Yusuke YAMAUCHI
  • Patent number: 10221753
    Abstract: A vehicle includes a radiator, a bypass passage, a first valve, a second valve, and a controller. Cooling water is circulated through the radiator independently of a cylinder block and a cylinder head of an engine. The radiator cools the cooling water. The cooling water is circulated through the bypass passage while bypassing the radiator. The first valve switches between an open state in which cooling water is circulated through the cylinder block and a closed state in which cooling water is not circulated through the cylinder block. The second valve receives cooling water circulated through the cylinder head and cooling water circulated through the cylinder block via the first valve. The second valve uses an intermediate opening to adjust a flow rate of cooling water circulated through the radiator and the bypass passage. The controller controls opening and closing of the first valve and the opening of the second valve.
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: March 5, 2019
    Assignee: SUBARU CORPORATION
    Inventors: Shigeru Sakamoto, Itsumi Suda, Yusuke Yamauchi, Yutaka Takahashi, Yoshiyuki Kanesaka
  • Publication number: 20190043675
    Abstract: This core-shell composite (10) is provided with a core (11) formed from a porous carbon body having a large number of pores from the interior through to the surface, and a shell layer (12) formed from conductive polymer nanorods (12a) that extend outward from the cavities of the pores (11a) on the surface of the core. The present invention provides the core-shell composite (10), to which electrolyte ions can be efficiently adsorbed or doped, a method for producing the core-shell composite, as well as an electrode material, a catalyst, an electrode, a secondary battery and an electric double-layer capacitor that use the core-shell composite.
    Type: Application
    Filed: February 3, 2017
    Publication date: February 7, 2019
    Inventors: Naoya KOBAYASHI, Yusuke YAMAUCHI, Rahu SALUNKHE, Jing TANG
  • Patent number: 10187174
    Abstract: An optical reception apparatus (1) of the present invention includes: a local oscillator (11) outputting local oscillation light (22); an optical mixer (12) receiving a multiplexed optical signal (21) and the local oscillation light, and selectively outputting an optical signal (23) corresponding to the wavelength of the local oscillation light from the multiplexed optical signal; a photoelectric converter (13) converting the optical signal (23) output from the optical mixer into an electric signal (24); a variable gain amplifier (15) amplifying the electric signal (24) to generate an output signal (25) whose output amplitude is amplified to a certain level; a gain control signal generating circuit (16) generating a gain control signal (26) for controlling the gain of the variable gain amplifier (15); and a monitor signal generating unit (17) generating a monitor signal (27) corresponding to the power of the optical signal (23) using the gain control signal (26).
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: January 22, 2019
    Assignee: NEC Corporation
    Inventor: Yusuke Yamauchi
  • Publication number: 20180003604
    Abstract: According to improvement of the receptor layer of various sensors of the type for detecting physical parameters (for example, a surface stress sensor, QCM, and SPR), all of high sensitivity, selectivity, and durability are achieved simultaneously. A porous material or a particulate material, e.g., nanoparticles, is used in place of a uniform membrane which has been conventionally used as a receptor layer. Accordingly, the sensitivity can be controlled by changing the membrane thickness of the receptor layer, the selectivity can be controlled by changing a surface modifying group to be fixed on the porous material or particulate material, and the durability can be controlled by changing the composition and surface properties of the porous material or particulate material.
    Type: Application
    Filed: August 31, 2015
    Publication date: January 4, 2018
    Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Kota SHIBA, Genki YOSHIKAWA, Yusuke YAMAUCHI, Norihiro SUZUKI, Gaku IMAMURA, Kosuke MINAMI, Hamish Hei-Man YEUNG
  • Publication number: 20170314454
    Abstract: A vehicle includes a radiator, a bypass passage, a first valve, a second valve, and a controller. Cooling water is circulated through the radiator independently of a cylinder block and a cylinder head of an engine. The radiator cools the cooling water. The cooling water is circulated through the bypass passage while bypassing the radiator. The first valve switches between an open state in which cooling water is circulated through the cylinder block and a closed state in which cooling water is not circulated through the cylinder block. The second valve receives cooling water circulated through the cylinder head and cooling water circulated through the cylinder block via the first valve. The second valve uses an intermediate opening to adjust a flow rate of cooling water circulated through the radiator and the bypass passage. The controller controls opening and closing of the first valve and the opening of the second valve.
    Type: Application
    Filed: April 10, 2017
    Publication date: November 2, 2017
    Inventors: Shigeru SAKAMOTO, Itsumi Suda, Yusuke Yamauchi, Yutaka Takahashi, Yoshiyuki Kanesaka
  • Publication number: 20170257182
    Abstract: An optical reception apparatus (1) of the present invention includes: a local oscillator (11) outputting local oscillation light (22); an optical mixer (12) receiving a multiplexed optical signal (21) and the local oscillation light, and selectively outputting an optical signal (23) corresponding to the wavelength of the local oscillation light from the multiplexed optical signal; a photoelectric converter (13) converting the optical signal (23) output from the optical mixer into an electric signal (24); a variable gain amplifier (15) amplifying the electric signal (24) to generate an output signal (25) whose output amplitude is amplified to a certain level; a gain control signal generating circuit (16) generating a gain control signal (26) for controlling the gain of the variable gain amplifier (15); and a monitor signal generating unit (17) generating a monitor signal (27) corresponding to the power of the optical signal (23) using the gain control signal (26).
    Type: Application
    Filed: May 22, 2017
    Publication date: September 7, 2017
    Inventor: Yusuke YAMAUCHI
  • Patent number: 9692545
    Abstract: An optical reception apparatus (1) of the present invention includes: a local oscillator (11) outputting local oscillation light (22); an optical mixer (12) receiving a multiplexed optical signal (21) and the local oscillation light, and selectively outputting an optical signal (23) corresponding to the wavelength of the local oscillation light from the multiplexed optical signal; a photoelectric converter (13) converting the optical signal (23) output from the optical mixer into an electric signal (24); a variable gain amplifier (15) amplifying the electric signal (24) to generate an output signal (25) whose output amplitude is amplified to a certain level; a gain control signal generating circuit (16) generating a gain control signal (26) for controlling the gain of the variable gain amplifier (15); and a monitor signal generating unit (17) generating a monitor signal (27) corresponding to the power of the optical signal (23) using the gain control signal (26).
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: June 27, 2017
    Assignee: NEC Corporation
    Inventor: Yusuke Yamauchi
  • Publication number: 20160164624
    Abstract: An optical reception apparatus (1) of the present invention includes: a local oscillator (11) outputting local oscillation light (22); an optical mixer (12) receiving a multiplexed optical signal (21) and the local oscillation light, and selectively outputting an optical signal (23) corresponding to the wavelength of the local oscillation light from the multiplexed optical signal; a photoelectric converter (13) converting the optical signal (23) output from the optical mixer into an electric signal (24); a variable gain amplifier (15) amplifying the electric signal (24) to generate an output signal (25) whose output amplitude is amplified to a certain level; a gain control signal generating circuit (16) generating a gain control signal (26) for controlling the gain of the variable gain amplifier (15); and a monitor signal generating unit (17) generating a monitor signal (27) corresponding to the power of the optical signal (23) using the gain control signal (26).
    Type: Application
    Filed: March 27, 2014
    Publication date: June 9, 2016
    Inventor: Yusuke YAMAUCHI
  • Patent number: 9346678
    Abstract: A method of producing macroporous carbon capsules includes providing pollen grains from date palm (Phoenix dactylifera L.) males, drying the pollen grains, heating the dried pollen grains to a temperature of at least 500° C. under an atmosphere of N2 gas to produce macroporous carbon capsules. The macroporous carbon capsules produced from the above method can have an oval shape with a diameter in the range of about 18 ?m to about 20 ?m. The macroporous carbon capsules have a mean pore diameter in the range of about 50 nm to about 450 nm. The pores are three-dimensionally interconnected via nanoscopic carbon walls. The carbon walls have a thickness of about 4 ?m.
    Type: Grant
    Filed: October 15, 2015
    Date of Patent: May 24, 2016
    Assignee: KING SAUD UNIVERSITY
    Inventors: Saad M. Alshehri, Tansir Ahmad, Hamad A. Al-Lohedan, Yusuke Yamauchi
  • Patent number: 8687967
    Abstract: To provide an optical transceiver with which a plurality of optical transmitters and receivers constituting the optical transceiver can be detached individually and exchanged/repaired easily, so that waste of components can be avoided. The optical transceiver includes: an optical transceiver main body; a plurality of pairs of optical transmitters and optical receivers housed inside the optical transceiver main body by being disposed in parallel; optical transmitter substrates and optical receiver substrates, which individually hold each of the optical transmitters and the optical receivers; an optical transceiver substrate which holds each of the optical transmitter substrates and the optical receiver substrates; and connectors which connect each of the optical transmitter substrates as well as the optical receiver substrates to the optical transceiver substrate detachably.
    Type: Grant
    Filed: December 8, 2011
    Date of Patent: April 1, 2014
    Assignee: NEC Corporation
    Inventor: Yusuke Yamauchi
  • Publication number: 20120148254
    Abstract: To provide an optical transceiver with which a plurality of optical transmitters and receivers constituting the optical transceiver can be detached individually and exchanged/repaired easily, so that waste of components can be avoided. The optical transceiver includes: an optical transceiver main body; a plurality of pairs of optical transmitters and optical receivers housed inside the optical transceiver main body by being disposed in parallel; optical transmitter substrates and optical receiver substrates, which individually hold each of the optical transmitters and the optical receivers; an optical transceiver substrate which holds each of the optical transmitter substrates and the optical receiver substrates; and connectors which connect each of the optical transmitter substrates as well as the optical receiver substrates to the optical transceiver substrate detachably.
    Type: Application
    Filed: December 8, 2011
    Publication date: June 14, 2012
    Inventor: YUSUKE YAMAUCHI