Patents by Inventor Naoki Yagi

Naoki Yagi 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: 20220158412
    Abstract: A semiconductor optical device includes a substrate including a waveguide made of silicon and a semiconductor layer joined to the substrate so as to overlap the waveguide and including a diffraction grating formed of a first semiconductor layer and a second semiconductor layer having different refractive indices. The waveguide includes a bent portion and a plurality of straight portions that are connected to each other by the bent portion and that extend straight. The first semiconductor layer and the second semiconductor layer are each made of a compound semiconductor. The second semiconductor layer is embedded in the first semiconductor layer and includes a plurality of portions arranged in a direction in which the plurality of straight portions extend. The diffraction grating is positioned above the plurality of straight portions.
    Type: Application
    Filed: October 4, 2021
    Publication date: May 19, 2022
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Takuo HIRATANI, Hideki YAGI, Naoki FUJIWARA
  • Patent number: 9683478
    Abstract: A dispersion plate that can be arranged on an upstream side of an oxygen concentration sensor in an exhaust pipe of an internal combustion engine, the oxygen concentration sensor being arranged in the exhaust pipe, is provided. The dispersion plate is configured to disperse an exhaust flow in the exhaust pipe. The dispersion plate includes a first plate and a second plate. The first plate includes a deflection plate that extends in an inclined direction and a twisted direction with respect to an extending direction of the exhaust pipe. The second plate extends in a direction orthogonal to the extending direction of the exhaust pipe. The second plate includes a through hole. The second plate is arranged on an outer circumferential side of the first plate in the exhaust pipe.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: June 20, 2017
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, SANGO CO., LTD.
    Inventors: Tsukasa Nagayama, Naoki Yagi
  • Publication number: 20160115852
    Abstract: A dispersion plate that can be arranged on an upstream side of an oxygen concentration sensor in an exhaust pipe of an internal combustion engine, the oxygen concentration sensor being arranged in the exhaust pipe, is provided. The dispersion plate is configured to disperse an exhaust flow in the exhaust pipe. The dispersion plate includes a first plate and a second plate. The first plate includes a deflection plate that extends in an inclined direction and a twisted direction with respect to an extending direction of the exhaust pipe. The second plate extends in a direction orthogonal to the extending direction of the exhaust pipe. The second plate includes a through hole. The second plate is arranged on an outer circumferential side of the first plate in the exhaust pipe.
    Type: Application
    Filed: October 21, 2015
    Publication date: April 28, 2016
    Inventors: Tsukasa NAGAYAMA, Naoki YAGI
  • Patent number: 6635125
    Abstract: A grain-oriented electrical steel sheet excellent in film and iron loss characteristics. The steel sheet contains up to 0.005% of C, 2.0 to 7.0& Si in terms of weight % and the balance iron and unavoidable impurities. An oxide film which mainly contains forsterite is formed on the surface and an insulating coating is formed on the oxide film. The peak intensity of Si obtained by glow discharge spectral analysis (GDS analysis) from the oxide film surface is at least ½ of that of Al, and the depth of the peak position of Si from the oxide film surface us up to {fraction (1/10)} of the depth of that of Al. The sheet satisfies the formulas for a ratio y(%) with which peeling of the oxide film does not take place when subjected to a bending test with a curvature of 20 mm and for core loss characteristic W (W/kg): y(%)≧−122.45t+112.55 W (W/kg)≦2.37t+0.280 wherein t represents a sheet thickness in terms of mm.
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: October 21, 2003
    Assignee: Nippon Steel Corporation
    Inventors: Kenji Kosuge, Kishio Mochinaga, Eiichi Nanba, Nobuo Tachibana, Shinya Ishii, Naoki Yagi
  • Publication number: 20020139444
    Abstract: The present invention provides a grain-oriented electrical steel sheet excellent in film characteristics and iron loss characteristics, a process for producing the same and a decarburization annealing facility used for the process.
    Type: Application
    Filed: March 27, 2002
    Publication date: October 3, 2002
    Applicant: Nippon Steel Corporation
    Inventors: Kenji Kosuge, Kishio Mochinaga, Eiichi Nanba, Nobuo Tachibana, Shinya Ishii, Naoki Yagi
  • Patent number: 6395104
    Abstract: A process for producing a grain-oriented electrical steel sheet wherein during the decarburization annealing step, the steel sheet is first rapidly heated in a rapid heating chamber and the PH2O/PH2 ratio in the rapid heating chamber is more than the PH2O/PH2 ratio in the decarburization annealing furnace so as to provide improved oxide film adhesion.
    Type: Grant
    Filed: December 15, 1998
    Date of Patent: May 28, 2002
    Assignee: Nippon Steel Corporation
    Inventors: Kenji Kosuge, Kishio Mochinaga, Eiichi Nanba, Nobuo Tachibana, Shinya Ishii, Naoki Yagi
  • Patent number: 6083604
    Abstract: The present invention relates to a bonded assembly characterized in that a board having a convexed portion on a jointing surface thereof and a board having, on a jointing surface thereof, a concaved portion or a through hole to be engaged with the convexed portion are jointed with adhesives. Also, the present invention relates to a bonded assembly characterized in that an adhesive is coated on the portion other than the convexed portion of the board so that the coating thickness is smaller than the height of the convexed portion, and then the board is jointed to another board having a concaved portion or a through hole, after making alignment of the boards. Further, the present invention relates to a rivet having means for fitting to and temporarily fixing to an inserting through hole, and a method of jointing boards which comprises a step for inserting, fitting and temporarily fixing the rivet having the means for temporarily fixing to the inserting through hole on the board.
    Type: Grant
    Filed: October 19, 1995
    Date of Patent: July 4, 2000
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Kosuke Haraga, Naoki Yagi, Yoshinobu Nakashima, Yuzi Ganryu, Tsutomu Sasaki, Atsushi Takimoto, Yosiro Komazawa, Asao Okuda, Shoji Takagi, Akifumi Matsukawa, Hideaki Urata, Yasushi Kawashima, Kazumi Masuo, Kenji Honma, Isao Ikeda
  • Patent number: 5776584
    Abstract: The present invention relates to a bonded assembly characterized in that a board having a convexed portion on a jointing surface thereof and a board having, on a jointing surface thereof, a concaved portion or a through hole to be engaged with the convexed portion are jointed with adhesives. Also, the present invention relates to a bonded assembly characterized in that an adhesive is coated on the portion other than the convexed portion of the board so that the coating thickness is smaller than the height of the convexed portion, and then the board is jointed to another board having a concaved portion or a through hole, after making alignment of the boards. Further, the present invention relates to a rivet having means for fitting to and temporarily fixing to an inserting through hole, and a method of jointing boards which comprises a step for inserting, fitting and temporarily fixing the rivet having the means for temporarily fixing to the inserting through hole on the board.
    Type: Grant
    Filed: October 19, 1995
    Date of Patent: July 7, 1998
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Kosuke Haraga, Naoki Yagi, Yoshinobu Nakashima, Yuzi Ganryu, Tsutomu Sasaki, Atsushi Takimoto, Yosiro Komazawa, Asao Okuda, Shoji Takagi, Akifumi Matsukawa, Hideaki Urata, Yasushi Kawashima, Kazumi Masuo, Kenji Honma, Isao Ikeda
  • Patent number: 5326953
    Abstract: A wire electrical feeding device for an electrical discharge machine. Vibrator assemblies are utilized to feed the wire electrode through electrode guides of the electrical discharge machine. A first vibrator assembly vibrates through a locus which includes a component in the wire feeding direction. The wire electrode is selectively pressed against the first vibrator assembly when the first vibrator assembly is moving in a direction having a component in a wire feeding direction. In the alternative, a second vibrator assembly, which is coupled to the first, clamps the wire electrode when the first vibrator assembly is moving in a direction having a component in the wire feeding direction. The vibrator assembles may each be driven at different vibrational frequencies.
    Type: Grant
    Filed: August 12, 1992
    Date of Patent: July 5, 1994
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Yoshitaka Ohnishi, Naoki Yagi, Yoshio Shibata, Masato Banzai, Toshio Suzuki
  • Patent number: 5165286
    Abstract: A strain detector in which a pair of magnetic layer patterns (5, 6) made of a magnetically permeable soft magnetic material are attached to a driven shaft (1) and a pair of detection coils (8, 9) are disposed to surround the respective magnetic layers for detecting a change in magnetic permeability of the magnetic layers which is caused when an external force is applied to the driven shaft. A magnetic yoke (15 or 16) is disposed around each of the detection coils (8 or 9) for promoting the passage of the magnetic flux therethrough, thereby decreasing flux leakage. The magnetic yokes (15, 16) each comprises an axially extending tubular member (15a) and radially inward outer and inner flanges (15d, 15e) extending from axially outer and inner ends of the tubular member, respectively. The magnetic yokes each may be made of a compacted core material containing magnetic powder and binder or assembled from a plurality of parts.
    Type: Grant
    Filed: June 27, 1991
    Date of Patent: November 24, 1992
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Tiyo Hamamura, Keiitiro Kobayashi, Hideo Ikeda, Katsuhiko Honda, Yoshiyasu Ogata, Naoki Yagi
  • Patent number: 4656046
    Abstract: A process for preparing a milk protein resistent to acids and bases which comprises subjecting an aqueous solution or dispersion containing casein and 0.5-30 parts of an acidic polysaccharide per 100 parts of casein at pH of 7.3-10.5 and at a temperature of 70.degree. C. or higher for 3 minutes or more. When the heat treatment is carried out in the presence of calcium or magnesium ion in an amount of up to 1.4 parts by weight per 100 parts of casein, thickening activity of the milk protein is further improved.
    Type: Grant
    Filed: August 27, 1985
    Date of Patent: April 7, 1987
    Assignee: Minaminihon Rakuno Kyodo Kabushiki Kaisha
    Inventors: Naoki Yagi, Kwang Y. Kim, Tarushige Nakaji
  • Patent number: 4656041
    Abstract: A process for preparing a heat resistant milk protein having excellent processability which comprises subjecting an aqueous solution or dispersion containing casein and an acidic polysaccharide at pH of 7.5-10.5 and at a temperature of 70.degree. C. or higher for 5 minutes or more, forming the resultant into a desired shape, and soaking in an aqueous solution containing multivalent metallic compound in an amount of 10 mM or more as a multivalent metal.
    Type: Grant
    Filed: August 27, 1985
    Date of Patent: April 7, 1987
    Assignee: Minaminihon Rakuno Kyodo Kabushiki Kaisha
    Inventors: Naoki Yagi, Kwang Y. Kim, Tarushige Nakaji
  • Patent number: 4650856
    Abstract: A process for producing gluten having high solubility which comprises heating an aqueous acidic solution of gluten and one or more proteins selected from the group consisting of albumins and globulins in an amount of one half or less of that of gluten under acidic conditions and then, after cooling, neutralizing the solution, if necessary.
    Type: Grant
    Filed: May 9, 1985
    Date of Patent: March 17, 1987
    Assignee: Minaminihon Rakuno Kyodo Kabushiki Kaisha
    Inventors: Naoki Yagi, Kwang Y. Kim, Tarushige Nakaji
  • Patent number: 4607097
    Abstract: A dichromatic coloring matter for a colored liquid crystal display element comprising a compound of the general formula: ##STR1## where A and B each stand for ##STR2## where n is 0, 1, 2, 3 or 4, and X and Y each stand for ##STR3## where R.sub.1 and R.sub.2 stand for an alkyl group or hydrogen, --R (alkyl group) or --OR (alkoxy group).
    Type: Grant
    Filed: June 4, 1984
    Date of Patent: August 19, 1986
    Assignees: Alps Electric Co., Ltd., Sanyo Color Works Ltd.
    Inventors: Mitsuru Kano, Yoshinori Kato, Yoshimi Kamijo, Yoshio Takeda, Yoshinari Sakikubo, Naoki Yagi
  • Patent number: 4370353
    Abstract: An acid-resisting whipping cream powder which comprises sodium or calcium caseinate, a vehicle, a fat or oil, an acetylated monoglyceride and a cyclic phosphate and/or a polymer material. The acid-resisting whipping cream powder is easily reconstituted and incorporated with gas by whipping even under an acidic condition to give a whipped cream of rich volume. The cream powder is produced by dispersing or dissolving the caseinate and the vehicle in water or a liquid medium suitable for food and drink, adding thereto the fat or oil and the acetylated monoglyceride, emulsifying the mixture, adding thereto the cyclic phosphate and/or the polymer material, homogenizing the mixture and then spray-drying the homogenized mixture.
    Type: Grant
    Filed: October 8, 1980
    Date of Patent: January 25, 1983
    Assignee: Minaminihon Rakuno Kyodo Kabushiki Kaisha
    Inventors: Naoki Yagi, Kwang Y. Kim, Tarushige Nakaji, Kazuuki Fujisaki
  • Patent number: 4275084
    Abstract: There is disclosed a formed food product of microfibrillar protein comprising a bundle of microfibrillar protein having a diameter of fiber of 10.mu. or less and a high heat resistance (A) and a microfibrillar protein having a diameter of fiber of 10.mu. or less and a low heat resistance (B) and optionally one or more fillers and/or other additives, which has similar structure and texture to those of cooked natural meats and has excellent stability to hot water cooking, excellent shape retention and good texture, and hence is useful as an artificial meat product.
    Type: Grant
    Filed: December 11, 1979
    Date of Patent: June 23, 1981
    Assignees: Kuraray Co., Ltd., Minaminihon Rakuno Kyodo Kabushiki Kaisha
    Inventors: Shuzo Ohyabu, Syozi Kurosaki, Keiji Matsumura, Hiroyuki Akasu, Takeo Akiya, Naoki Yagi, Kwang Y. Kim, Tarushige Nakaji, Akiko Miyanaka
  • Patent number: 4251567
    Abstract: A fibrous milk protein product having a high tensile elongation (115 to 380%) and an excellent stability to hot water cooking (tolerant to treatment in hot water of 135.degree. C. for 4 minutes) which is produced by forming the starting milk protein into a fibrous composition and then treating the fibrous composition in an aqueous solution containing at least one of sodium, potassium and calcium salts and also an aldehyde type crosslinking agent having a ratio of molecular weight (M) to number of aldehyde groups (n) of 120 to 360 (e.g. lactose) at a pH of 2.5 to 6.5 and at 100.degree. to 140.degree. C. for 20 minutes to 3 hours.
    Type: Grant
    Filed: September 21, 1978
    Date of Patent: February 17, 1981
    Assignees: Kuraray Co., Ltd., Minaminihon Rakuno Kyodo Kabushiki Kaisha
    Inventors: Shuzo Ohyabu, Syuji Kawai, Hiroyuki Akasu, Takeo Akiya, Keiji Matsumura, Naoki Yagi, Kwang Young Kim, Tarushige Nakaji
  • Patent number: 4165392
    Abstract: A process for producing a meat-simulating, fibrous high-protein food from a starting milk material such as a milk, a skim milk, a casein or the like, which comprises the steps of (1) converting the starting milk material into a fibrous composition by a known method such as gelling the starting milk material and applying a stress to the resulting gel composition; (2) after or during the conversion step, prestabilizing the resulting fibrous composition in an acidic bath of pH 0 to 5 containing 0.5 to 25% by weight of one or more specific acidic compounds for 10 seconds to 5 minutes; and then (3) actually stabilizing the resultant fibrous composition in a saline bath of pH 2.5 to 6.5 containing at least one salt selected from a potassium salt, a sodium salt or a calcium salt in an amount of 0.3 to 6 gram equivalents/L as the total cation concentration of the bath, at 90.degree. to 130.degree. C. for 20 minutes to 3 hours.
    Type: Grant
    Filed: January 17, 1977
    Date of Patent: August 21, 1979
    Assignees: Kuraray Co., Ltd., Minaminihon Rakuno Kyodo Kabushiki Kaisha
    Inventors: Syuji Kawai, Shuzo Ohyabu, Takeo Akiya, Shunichiro Horio, Naoki Yagi, Kwang Y. Kim, Tarushige Nakaji