Patents by Inventor Shuichi Nakamura

Shuichi Nakamura 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: 20130292006
    Abstract: A grain-oriented electrical steel sheet being a grain-oriented electrical steel sheet containing Si of 0.8 mass % to 7 mass %, Mn of 0.05 mass % to 1 mass %, B of 0.0005 mass % to 0.0080 mass %, each content of Al, C, N, S, and Se of 0.005 mass % or less, and a balance being composed of Fe and inevitable impurities and having a glass coating film made of composite oxide mainly composed of forsterite on the steel sheet surface, in which when glow discharge optical emission spectrometry (GDS) to the surface of a secondary coating film formed on the surface of the glass coating film under a predetermined condition is performed, a peak, of B, in emission intensity having a peak position in emission intensity different from a peak position, of Mg, in emission intensity is obtained and the peak position, of B, in emission intensity from the steel sheet surface is deeper than the peak position, of Mg, in emission intensity.
    Type: Application
    Filed: January 12, 2012
    Publication date: November 7, 2013
    Inventors: Fumiaki Takahashi, Yoshiyuki Ushigami, Kazumi Mizukami, Shuichi Nakamura, Norikazu Fujii, Norihiro Yamamoto, Masahide Urago
  • Patent number: 8570594
    Abstract: With this invention, color shifting correction is performed first based on shifting amount information indicating a shifting amount with respect to the scanning direction on an image carrier of each image forming unit, and halftone processing is then performed, thus suppressing generation of moiré due to the color shifting correction, and forming a high-quality image. To this end, an image forming engine has color shifting amount storage units C, M, Y, and K (black) which store actual shifting amounts with respect to ideal scan directions on image carriers C, M, Y, and K in image forming units C, M, Y, and K. Color shifting correction amount arithmetic units C, M, Y, and K calculate color shifting correction amounts for respective color components on the basis of the stored color shifting amounts.
    Type: Grant
    Filed: March 2, 2010
    Date of Patent: October 29, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tsutomu Takata, Hiroki Kitamura, Yoshiyuki Akiba, Shuichi Nakamura, Yusuke Yamamoto, Masanao Motoyama, Takeshi Akiyama, Kenzo Tojima, Takaaki Nagaoka
  • Patent number: 8430777
    Abstract: A proposition is to provide a power transmission mechanism for parallel hybrid vehicle that is capable of smoothly combining/separating input/output powers of a motor and an engine, and is applicable to a large hybrid vehicle by ensuring sufficient strength of a mechanism for combining and separating the input/output powers.
    Type: Grant
    Filed: November 18, 2009
    Date of Patent: April 30, 2013
    Assignee: UD Trucks Corporation
    Inventors: Yoshiaki Yamada, Kunihiko Hikiri, Shuichi Nakamura, Kouichi Itani
  • Publication number: 20130078031
    Abstract: An ultrahigh-strength welded joint with superior strength and toughness, and a method for producing the ultrahigh-strength welded joint by means of single-pass welding by using laser hybrid welding, are provided, wherein the welded joint comprising a steel plate having a plate thickness of 4 mm to 12 mm and including weld metal of almost full martensite structure, wherein, in a cross-section of the welded joint in a direction perpendicular to a welding direction, a cross-sectional shape of the weld metal has a width W1 of 2.0 to 7.0 mm at a surface of the steel plate and a width W2 of 0.5 to 2.4 mm at a position where is separated from the surface by three-quarters of the plate thickness, wherein the weld metal comprises, by mass %, C: over 0.09% to 0.24%; Si: 0.2% to 1.0%; Mn: 0.5% to 2.5%; P: 0.02% or less; S: 0.02% or less; Al: 0.004% to 0.08%; Ti: 0.005% to 0.15%; O: 0.005% to 0.05%; and Ni: 1.0% to 9%, and wherein a carbon equivalent (Ceq) is 0.40% to 1.
    Type: Application
    Filed: June 6, 2011
    Publication date: March 28, 2013
    Inventors: Shuichi Nakamura, Kazuhiro Kojima
  • Publication number: 20130000786
    Abstract: A predetermined steel containing Te: 0.0005 mass % to 0.0050 mass % is heated to 1320° C. or lower to be subjected to hot rolling, and is subjected to annealing, cold rolling, decarburization annealing, and nitridation annealing, and thereby a decarburized nitrided steel sheet is obtained. Further, an annealing separating agent is applied on the surface of the decarburized nitrided steel sheet and finish annealing is performed, and thereby a glass coating film is formed. The N content of the decarburized nitrided steel sheet is set to 0.0150 mass % to 0.0250 mass % and the relationship of 2×[Te]+[N]?0.0300 mass % is set to be established. Note that [Te] represents the Te content and [N] represents the N content.
    Type: Application
    Filed: March 15, 2011
    Publication date: January 3, 2013
    Inventors: Kenichi Murakami, Chie Hama, Kazumi Mizukami, Yoshiyuki Ushigami, Shuichi Nakamura
  • Patent number: 8303730
    Abstract: A slab with a predetermined composition is heated at 1280° C. to 1390° C. to make a substance functioning as an inhibitor to be solid-solved (step S1). Next, the slab is hot-rolled to obtain a steel strip (step S2). The steel strip is annealed to form a primary inhibitor in the steel strip (step S3). Next, the steel strip is cold-rolled once or more (step S4). Next, the steel strip is annealed to perform decarburization and to cause primary recrystallization (step S5). Next, nitriding treatment is performed on the steel strip in a mixed gas of hydrogen, nitrogen and ammonia under a state where the steel strip runs, to form a secondary inhibitor in the steel strip (step S6). Next, the steel strip is annealed to induce secondary recrystallization (step S7).
    Type: Grant
    Filed: September 8, 2009
    Date of Patent: November 6, 2012
    Assignee: Nippon Steel Corporation
    Inventors: Tomoji Kumano, Yoshiyuki Ushigami, Shuichi Nakamura, Yohichi Zaizen
  • Patent number: 8209958
    Abstract: An engine exhaust emission purification apparatus for reducing and purifying NOx in the exhaust emission by using a liquid reducing agent having a temperature maintenance device for maintaining a temperature of at least a part of a liquid reducing agent supply system configured by an injection nozzle and piping of the injection nozzle at a temperature lower than a boiling point of a solvent of the liquid reducing agent or equal to or higher than a melting point of dissolved matter in which the liquid reducing agent existing in the liquid reducing agent supply system conducts heat exchange with the liquid reducing agent supply system thereby being maintained at a temperature lower than the boiling point of the solvent or equal to or higher than the melting point of the dissolved matter and resultantly, occurrence of precipitation of the dissolved matter due to evaporation of only the solvent in the liquid reducing agent supply system does not occur, and even if precipitation of the dissolved matter occurs, the
    Type: Grant
    Filed: February 18, 2009
    Date of Patent: July 3, 2012
    Assignee: Nissan Diesel Motor Co., Ltd.
    Inventors: Kiminobu Hirata, Hisashi Akagawa, Shuichi Nakamura, Hiroki Ueno, Ikuo Sakai
  • Patent number: 8202374
    Abstract: A surface temperature of a slab is decreased down to 600° C. or lower between start of continuous casting (step S2) and start of slab reheating (step S3). The surface temperature of the slab is held at 150° C. or higher between the start of the continuous casting (step s2) and the start of the slab reheating (step S3). The surface temperature of the slab in the slab reheating (step S3) is set to not lower than 1080° C. and not higher than 1200° C.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: June 19, 2012
    Assignee: Nippon Steel Corporation
    Inventors: Tomoji Kumano, Norihiro Yamamoto, Yoshiyuki Ushigami, Shuichi Nakamura
  • Patent number: 8193681
    Abstract: A laminated stator core 10 and a manufacturing method thereof, the method including producing a plurality of core sheets 15 and 16 from a strip 33, ends 34 of the strip 33 being a part of a product without being cut twice, and rotating and laminating the core sheets. A laminated stator core formed by core sheets blanked from a magnetic strip, both ends of the magnetic strip being one of the sides of the core sheets, wherein the identically shaped core sheets each have a rotor space in the center thereof, each rotor space having a center located off-center in one direction with respect to each center of the core sheets, and the core sheets are rotated by a predetermined angle before being laminated with the rotor spaces vertically aligned.
    Type: Grant
    Filed: November 11, 2008
    Date of Patent: June 5, 2012
    Assignee: Mitsui High-Tec, Inc.
    Inventors: Kazuhiko Umeda, Shuichi Nakamura, Kenichiro Iwata
  • Publication number: 20120115659
    Abstract: A proposition is to provide a power transmission mechanism for parallel hybrid vehicle that is capable of smoothly combining/separating input/output powers of a motor and an engine, and is applicable to a large hybrid vehicle by ensuring sufficient strength of a mechanism for combining and separating the input/output powers.
    Type: Application
    Filed: November 18, 2009
    Publication date: May 10, 2012
    Inventors: Yoshiaki Yamada, Kunihiko Hikiri, Shuichi Nakamura, Kouichi Itani
  • Publication number: 20120037277
    Abstract: A surface temperature of a slab is decreased down to 600° C. or lower between start of continuous casting (step S2) and start of slab reheating (step S3). The surface temperature of the slab is held at 150° C. or higher between the start of the continuous casting (step s2) and the start of the slab reheating (step S3). The surface temperature of the slab in the slab reheating (step S3) is set to not lower than 1080° C. and not higher than 1200° C.
    Type: Application
    Filed: March 31, 2010
    Publication date: February 16, 2012
    Inventors: Tomoji Kumano, Norihiro Yamamoto, Yoshiyuki Ushigami, Shuichi Nakamura
  • Patent number: 8068259
    Abstract: A color image forming apparatus of a so-called tandem type which has image forming units in correspondence with colors is provided. In the color image forming apparatus, a color discrepancy amount storage unit stores information of a color discrepancy amount of each of the image forming units, which is measured in advance. A first color discrepancy correcting unit performs color discrepancy correction in a pixel unit by performing coordinate conversion of bitmap data to be printed based on the information of the color discrepancy amount stored in the color discrepancy amount storage unit. A second color discrepancy correcting unit performs color discrepancy correction in less than a pixel unit by performing tone correction of the bitmap data corrected by the first color discrepancy correcting unit based on the information of the color discrepancy amount stored in the color discrepancy amount storage unit.
    Type: Grant
    Filed: October 21, 2009
    Date of Patent: November 29, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kenzo Tojima, Hiroki Kitamura, Yoshiyuki Akiba, Tsutomu Takata, Shuichi Nakamura, Yusuke Yamamoto, Masanao Motoyama, Takeshi Akiyama, Takaaki Nagaoka
  • Patent number: 7976644
    Abstract: The present invention provides a method of production of grain-oriented electrical steel sheet comprising making a slab heating temperature 1280° C. or less, annealing hot rolled sheet by (a) a process of heating it to a predetermined temperature of 1000 to 1150° C. to cause recrystallization, then annealing by a temperature lower than that of 850 to 1100° C. or by (b) decarburizing in annealing the hot rolled sheet so that a difference in amounts of carbon of the steel sheet before and after annealing the hot rolled sheet becomes 0.002 to 0.02 mass % and performing the heating in the temperature elevation process of the decarburization annealing under conditions of a heating rate of 40° C. or more, preferably 75 to 125° C./s while the temperature of the steel sheet is in a range from 550° C. to 720° C. and utilizing induction heating for rapid heating in the temperature elevation process of decarburization annealing.
    Type: Grant
    Filed: May 22, 2007
    Date of Patent: July 12, 2011
    Assignee: Nippon Steel Corporation
    Inventors: Yoshiyuki Ushigami, Norikazu Fujii, Takeshi Kimura, Maremizu Ishibashi, Shuichi Nakamura, Koji Yamasaki
  • Publication number: 20110155285
    Abstract: A slab with a predetermined composition is heated at 1280° C. to 1390° C. to make a substance functioning as an inhibitor to be solid-solved (step S1). Next, the slab is hot-rolled to obtain a steel strip (step S2). The steel strip is annealed to form a primary inhibitor in the steel strip (step S3). Next, the steel strip is cold-rolled once or more (step S4). Next, the steel strip is annealed to perform decarburization and to cause primary recrystallization (step S5). Next, nitriding treatment is performed on the steel strip in a mixed gas of hydrogen, nitrogen and ammonia under a state where the steel strip runs, to form a secondary inhibitor in the steel strip (step S6). Next, the steel strip is annealed to induce secondary recrystallization (step S7).
    Type: Application
    Filed: September 8, 2009
    Publication date: June 30, 2011
    Inventors: Tomoji Kumano, Yoshiyuki Ushigami, Shuichi Nakamura, Yohichi Zaizen
  • Publication number: 20100327690
    Abstract: A laminated stator core 10 and a manufacturing method thereof, the method including producing a plurality of core sheets 15 and 16 from a strip 33, ends 34 of the strip 33 being a part of a product without being cut twice, and rotating and laminating the core sheets. A laminated stator core formed by core sheets blanked from a magnetic strip, both ends of the magnetic strip being one of the sides of the core sheets, wherein the identically shaped core sheets each have a rotor space in the center thereof, each rotor space having a center located off-center in one direction with respect to each center of the core sheets, and the core sheets are rotated by a predetermined angle before being laminated with the rotor spaces vertically aligned.
    Type: Application
    Filed: November 11, 2008
    Publication date: December 30, 2010
    Applicant: MITSUI HIGH-TEC, INC.
    Inventors: Kazuhiko Umeda, Shuichi Nakamura, Kenichiro Iwata
  • Patent number: 7849674
    Abstract: A NOx reduction catalyst and an ammonia slip oxidation catalyst are disposed in an exhaust system in this order, and also, an electric fan is disposed on piping which communicates an upper space of a storage tank storing therein a reducing agent with the exhaust upstream of the NOx reduction catalyst. Then, when the temperature of the ammonia slip oxidation catalyst reaches or exceeds the temperature for activating a catalyst thereof, the electric fan is operated for a predetermined period of time, so that the gas (ammonia series gas) in the upper space of the storage tank is forcibly discharged to the upstream side of the NOx reduction catalyst. Further, a discharge-forcing device, such as an electric fan or the like, forcibly discharging the gas in the upper space of the storage tank, an adsorbing device temporarily adsorbing thereto the forcibly discharged gas and an oxidation catalyst oxidizing the gas desorbed from the adsorbing device, may be disposed to the storage tank in this order.
    Type: Grant
    Filed: September 2, 2004
    Date of Patent: December 14, 2010
    Assignee: Nissan Diesel Motor Co., Ltd.
    Inventors: Kouji Masuda, Kiminobu Hirata, Hisashi Akagawa, Shuichi Nakamura, Hiroki Ueno, Ikuo Sakai
  • Publication number: 20100220342
    Abstract: With this invention, color shifting correction is performed first based on shifting amount information indicating a shifting amount with respect to the scanning direction on an image carrier of each image forming unit, and halftone processing is then performed, thus suppressing generation of moiré due to the color shifting correction, and forming a high-quality image. To this end, an image forming engine has color shifting amount storage units C, M, Y, and K (black) which store actual shifting amounts with respect to ideal scan directions on image carriers C, M, Y, and K in image forming units C, M, Y, and K. Color shifting correction amount arithmetic units C, M, Y, and K calculate color shifting correction amounts for respective color components on the basis of the stored color shifting amounts.
    Type: Application
    Filed: March 2, 2010
    Publication date: September 2, 2010
    Applicant: Canon Kabushiki Kaisha
    Inventors: Tsutomu Takata, Hiroki Kitamura, Yoshiyuki Akiba, Shuichi Nakamura, Yusuke Yamamoto, Masanao Motoyama, Takeshi Akiyama, Kenzo Tojima, Takaaki Nagaoka
  • Patent number: 7770994
    Abstract: A shifting amount of color compensation amount is calculated based on a shifting amount of color obtained from a shifting amount of color storage unit for each image forming unit, and shifting amount of color compensation in the pixel unit is performed by executing address conversion using the calculation result. A feature of an image to be processed is detected, and color density conversion compensation for performing shifting amount of color compensation in less than the pixel unit is performed according to the detected feature. Furthermore, half-tone processing or exceptional processing is selectively executed according to the detected feature.
    Type: Grant
    Filed: January 3, 2008
    Date of Patent: August 10, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroki Kitamura, Yoshiyuki Akiba, Tsutomu Takada, Shuichi Nakamura, Yusuke Yamamoto, Masanao Motoyama, Takeshi Akiyama, Kenzo Tojima, Takaaki Nagaoka
  • Publication number: 20100079820
    Abstract: A color image forming apparatus of a so-called tandem type which has image forming units in correspondence with colors is provided. In the color image forming apparatus, a color discrepancy amount storage unit stores information of a color discrepancy amount of each of the image forming units, which is measured in advance. A first color discrepancy correcting unit performs color discrepancy correction in a pixel unit by performing coordinate conversion of bitmap data to be printed based on the information of the color discrepancy amount stored in the color discrepancy amount storage unit. A second color discrepancy correcting unit performs color discrepancy correction in less than a pixel unit by performing tone correction of the bitmap data corrected by the first color discrepancy correcting unit based on the information of the color discrepancy amount stored in the color discrepancy amount storage unit.
    Type: Application
    Filed: October 21, 2009
    Publication date: April 1, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Kenzo Tojima, Hiroki Kitamura, Yoshiyuki Akiba, Tsutomu Takata, Shuichi Nakamura, Yusuke Yamamoto, Masanao Motoyama, Takeshi Akiyama, Takaaki Nagaoka
  • Patent number: 7684079
    Abstract: An image forming engine has color shifting amount storage units C, M, Y, and K (black) which store actual shifting amounts relative to ideal scan directions on image carriers C, M, Y, and K in image forming units C, M, Y, and K. Color shifting correction amount arithmetic units calculate color shifting correction amounts for respective color components to base on the stored color shifting amounts. Color shifting correction units C, M, Y, and K perform color shifting correction by converting coordinates upon reading out image data from bitmap memories C, M, Y, and K on the basis of the calculated color shifting correction amounts, and then perform tone correction. Data after tone correction undergo halftone processing by halftone processors. C, M, Y, and K to suppress moire. PWM processors C, M, Y, and K generate PWM signals for scanning, and output them to exposure units C, M, Y, and K of the respective image forming units.
    Type: Grant
    Filed: November 16, 2005
    Date of Patent: March 23, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tsutomu Takata, Hiroki Kitamura, Yoshiyuki Akiba, Shuichi Nakamura, Yusuke Yamamoto, Masanao Motoyama, Takeshi Akiyama, Kenzo Tojima, Takaaki Nagaoka