Patents by Inventor Masayuki Nagai

Masayuki 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: 20220270940
    Abstract: An abnormality detection method includes: supplying a gas controlled to a selected rate to a gas supply pipe via the gas pipe connected to the gas supply pipe, thereby introducing the gas into a reaction region of a processing container provided in a processing apparatus from a gas hole of the gas supply pipe; measuring a pressure inside the gas pipe by a pressure gauge attached to the gas pipe; and detecting an abnormality of at least one of the gas supply pipe and the gas pipe based on the pressure measured at the measuring.
    Type: Application
    Filed: February 18, 2022
    Publication date: August 25, 2022
    Inventors: Shingo HISHIYA, Nobutoshi TERASAWA, Fumiaki NAGAI, Kazuaki SASAKI, Hiroaki KIKUCHI, Masayuki KITAMURA, Kazuo YABE, Motoshi FUKUDOME, Tatsuya MIYAHARA, Eiji KIKAMA, Yuki TANABE, Tomoyuki NAGATA
  • Publication number: 20220251294
    Abstract: A polyester resin contains a dicarboxylic acid constituent unit and a diol constituent unit, wherein more than 0% by mol and 20% by mol or less of the diol constituent unit is a unit originated from a diol having a cyclic acetal skeleton; 70 to 98% by mol of the diol constituent unit is a unit originated from a diol having an alicyclic skeleton; the diol constituent unit comprises a unit originated from ethylene glycol; 80% by mol or more of the dicarboxylic acid constituent unit is a unit originated from terephthalic acid; and the polyester resin has a physical property indicated by the following (A): (A) the minimum value of the semi-crystallization time is 600 s or less based on a depolarized light intensity method when the polyester resin is melted at 280° C. and crystallized at a constant temperature of 150 to 230° C.
    Type: Application
    Filed: July 8, 2020
    Publication date: August 11, 2022
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Takami MORISHITA, Kouki ADACHI, Masayuki NAGAI
  • Publication number: 20220204754
    Abstract: The present application relates to a polyester resin composition that includes a polyester resin having a predetermined composition and a polycarbodiimide in a predetermined amount that exhibits heat resistance, transparency and impact resistance and prevents embrittlement after heat treatment. The present application also relates to a polyester-based injection-molded article, a polyester-based extruded article, a polyester-based foam, a polyester-based container, a polyester-based bottle, a polyester-based tableware, and a polyester-based nursing bottle.
    Type: Application
    Filed: April 22, 2020
    Publication date: June 30, 2022
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Kentaro ISHII, Ken TAGUWA, Masayuki NAGAI
  • Patent number: 10131781
    Abstract: The invention is a polyacetal resin composition containing a polyacetal resin (A) and a polyethylene resin (B), in which the blending proportion of the polyacetal resin (A) occupying in the total mass of the polyacetal resin (A) and the polyethylene resin (B) is 10 to 90 mass %, the melt flow rate of the polyacetal resin (A) measured at a condition of 190° C. and 2.16 kg load is 30 g/10 minutes or less, and the polyethylene resin (B) consists of a modified polyethylene resin and the modification rate is 0.01 mass % or more based on 100 mass % of the total mass of the polyethylene resin and the melt flow rate of the polyethylene resin (B) measured at a condition of 190° C. and 2.16 kg load is 2.5 g/10 minutes or less.
    Type: Grant
    Filed: August 1, 2013
    Date of Patent: November 20, 2018
    Assignees: MITSUBISHI ENGINEERING-PLASTICS CORPORATION, JAPAN POLYETHYLENE CORPORATION
    Inventors: Ryusuke Yamada, Masayuki Nagai, Satoshi Nagai, Kunihiko Fujimoto, Kei Takahashi
  • Patent number: 10016893
    Abstract: A robot hand controlling method executes calculating a position and changing grip force when the grip force for gripping a work W is to be changed in a state that fingers are gripping the work W with first grip force. In the calculating the position, the hand controlling unit uses a correlation value indicating a relationship between the grip force of the fingers and position of fixing portions, the first grip force, and second grip force that is a target value of the grip force to calculate the position of the fixing portions in gripping the work W with the second grip force. In the changing the grip force, the hand controlling unit drives a motor by calculating a driving quantity of the motor necessary for moving the fingers to the calculated position of the fixing portions.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: July 10, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Masayuki Nagai
  • Patent number: 9850367
    Abstract: Provided is a polyacetal resin composition in which at least one dihydrazone compound (B) selected from the group of two kinds of dihydrazone compounds is blended in 0.02 to 5 parts by mass with respect to 100 parts by mass of a polyacetal resin (A).
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: December 26, 2017
    Assignee: MITSUBISHI ENGINEERING-PLASTICS CORPORATION
    Inventors: Makiko Oshima, Kunihiko Fujimoto, Masayuki Nagai, Hidetoshi Nawata, Koki Sato, Ryusuke Tamaki
  • Publication number: 20160333170
    Abstract: Provided is a polyacetal resin composition in which at least one dihydrazone compound (B) selected from the group of two kinds of dihydrazone compounds is blended in 0.02 to 5 parts by mass with respect to 100 parts by mass of a polyacetal resin (A).
    Type: Application
    Filed: January 27, 2015
    Publication date: November 17, 2016
    Applicant: MITSUBISHI ENGINEERING-PLASTICS CORPORATION
    Inventors: Makiko OSHIMA, Kunihiko FUJIMOTO, Masayuki NAGAI, Hidetoshi NAWATA, Koki SATO, Ryusuke TAMAKI
  • Publication number: 20160221188
    Abstract: A robot hand controlling method executes calculating a position and changing grip force when the grip force for gripping a work W is to be changed in a state that fingers are gripping the work W with first grip force. In the calculating the position, the hand controlling unit uses a correlation value indicating a relationship between the grip force of the fingers and position of fixing portions, the first grip force, and second grip force that is a target value of the grip force to calculate the position of the fixing portions in gripping the work W with the second grip force. In the changing the grip force, the hand controlling unit drives a motor by calculating a driving quantity of the motor necessary for moving the fingers to the calculated position of the fixing portions.
    Type: Application
    Filed: January 20, 2016
    Publication date: August 4, 2016
    Inventor: Masayuki Nagai
  • Publication number: 20150183982
    Abstract: The invention is a polyacetal resin composition containing a polyacetal resin (A) and a polyethylene resin (B), in which the blending proportion of the polyacetal resin (A) occupying in the total mass of the polyacetal resin (A) and the polyethylene resin (B) is 10 to 90 mass %, the melt flow rate of the polyacetal resin (A) measured at a condition of 190° C. and 2.16 kg load is 30 g/10 minutes or less, and the polyethylene resin (B) consists of a modified polyethylene resin and the modification rate is 0.01 mass % or more based on 100 mass % of the total mass of the polyethylene resin and the melt flow rate of the polyethylene resin (B) measured at a condition of 190° C. and 2.16 kg load is 2.5 g/10 minutes or less.
    Type: Application
    Filed: August 1, 2013
    Publication date: July 2, 2015
    Applicants: JAPAN POLYETHYLENE CORPORATION, MITSUBISHI ENGINEERING-PLASTICS CORPORATION
    Inventors: Ryusuke Yamada, Masayuki Nagai, Satoshi Nagai, Kunihiko Fujimoto, Kei Takahashi
  • Patent number: 8846788
    Abstract: A polyacetal resin composition containing 100 parts by weight of a polyacetal resin, 0.01 to 5 parts by weight of a colorant selected from inorganic and organic pigments, 0.01 to 3 parts by weight of a polyamide resin having a melting point or softening point of 180° C. or less, or a polyetheresteramide resin, 0.01 to 1 part by weight of an aromatic dihydrazide compound or an aliphatic dihydrazide compound having a solubility of less than 1 g relative to 100 g of water at 20° C., and 0.01 to 1 part by weight of a sterically hindered phenolic compound, or a combination of a hindered amine-based light stabilizer and an ultraviolet absorber, exhibits an excellent thermal stability and is capable of suppressing formaldehyde generation and mechanical strength deterioration.
    Type: Grant
    Filed: September 3, 2009
    Date of Patent: September 30, 2014
    Assignee: Mitsubishi Engineering-Plastics Corporation
    Inventors: Masayuki Nagai, Kunihiko Fujimoto
  • Publication number: 20120296472
    Abstract: A force control robot which controls a motion of a robotic arm based on a detection value of a force detector, the force control robot including: the robotic arm having one end as a fixed end and another end as a movable end; an end effector connected to the movable end of the arm through an elastic member, the end effector having a grip driving portion and a grip mechanism portion configured to grip a part; the force detector configured to detect an external force exerted on the grip mechanism portion of the end effector, based on a deformation amount of the elastic member; an end effector controller disposed at the movable end of the arm and configured to control the grip driving portion of the end effector; and a robotic controller configured to control the motion of the arm.
    Type: Application
    Filed: December 3, 2010
    Publication date: November 22, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Masayuki Nagai
  • Patent number: 8097670
    Abstract: A polyacetal resin composition which has improved friction-wear characteristics as compared with conventional polyacetal resin compositions and which is less restricted in counter sliding members and can conform to a wide range of friction-wear conditions. A polyacetal resin composition comprising 100 parts by weight of (A) a polyacetal resin, 0.1 to 10 parts by weight of (B) a polyethylene wax having a number average molecular weight of 500 to 15,000, 0.1 to 10 parts by weight of (C) a polyethylene resin having a number average molecular weight of 2×104 to 50×104, and 0.1 to 5 parts by weight of (D) a silicone oil having a kinetic viscosity at 25° C. of 50×104 cSt or more.
    Type: Grant
    Filed: June 12, 2007
    Date of Patent: January 17, 2012
    Assignee: Mitsubishi Engineering-Plastics Corporation
    Inventors: Masayuki Nagai, Yasuhiro Hirai
  • Publication number: 20110230602
    Abstract: A polyacetal resin composition containing 100 parts by weight of a polyacetal resin, 0.01 to 5 parts by weight of a colorant selected from inorganic and organic pigments, 0.01 to 3 parts by weight of a polyamide resin having a melting point or softening point of 180° C. or less, or a polyetheresteramide resin, 0.01 to 1 part by weight of an aromatic dihydrazide compound or an aliphatic dihydrazide compound having a solubility of less than 1 g relative to 100 g of water at 20° C., and 0.01 to 1 part by weight of a sterically hindered phenolic compound, or a combination of a hindered amine-based light stabilizer and an ultraviolet absorber, exhibits an excellent thermal stability and is capable of suppressing formaldehyde generation and mechanical strength deterioration.
    Type: Application
    Filed: September 3, 2009
    Publication date: September 22, 2011
    Applicant: MITSUBISHI ENGINEERING-PLASTICS CORPORATION
    Inventors: Masayuki Nagai, Kunihiko Fujimoto
  • Publication number: 20090298981
    Abstract: A polyacetal resin composition which has improved friction-wear characteristics as compared with conventional polyacetal resin compositions and which is less restricted in counter sliding members and can conform to a wide range of friction-wear conditions. A polyacetal resin composition comprising 100 parts by weight of (A) a polyacetal resin, 0.1 to 10 parts by weight of (B) a polyethylene wax having a number average molecular weight of 500 to 15,000, 0.1 to 10 parts by weight of (C) a polyethylene resin having a number average molecular weight of 2×104 to 50×104, and 0.1 to 5 parts by weight of (D) a silicone oil having a kinetic viscosity at 25° C. of 50×104 cSt or more.
    Type: Application
    Filed: June 12, 2007
    Publication date: December 3, 2009
    Applicant: Mitsubishi Engineering-Plastics Corporation
    Inventors: Masayuki Nagai, Yasuhiro Hirai
  • Patent number: 7315159
    Abstract: An object of this invention is to finely set the voltage at high speed without decreasing the efficiency. In a power supply for switching operation including a switching circuit, an output circuit, a control table which stores data on the ON and OFF periods of the switching circuit in correspondence with a set voltage, an arithmetic processing unit which performs reading operation from the control table and PWM operation, and a digital control unit which controls the switching circuit by outputting a PWM signal, feedback control based on the output voltage is performed in a case where the output voltage is not changed. When changing the output voltage, the feedback control is switched over to control based on data in the control table to change the output voltage at high speed.
    Type: Grant
    Filed: October 17, 2006
    Date of Patent: January 1, 2008
    Assignee: Canon Kabushiki Kaisha
    Inventor: Masayuki Nagai
  • Publication number: 20070085521
    Abstract: An object of this invention is to finely set the voltage at high speed without decreasing the efficiency. In a power supply for switching operation including a switching circuit, an output circuit, a control table which stores data on the ON and OFF periods of the switching circuit in correspondence with a set voltage, an arithmetic processing unit which performs reading operation from the control table and PWM operation, and a digital control unit which controls the switching circuit by outputting a PWM signal, feedback control based on the output voltage is performed in a case where the output voltage is not changed. When changing the output voltage, the feedback control is switched over to control based on data in the control table to change the output voltage at high speed.
    Type: Application
    Filed: October 17, 2006
    Publication date: April 19, 2007
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Masayuki Nagai
  • Patent number: 7183757
    Abstract: There is provided a switching power source capable of quickly responding to a change in output at high efficiency over a wide output voltage range. The power source includes an integrator, a comparator which compares an output from the integrator with a quantization reference value, and a sampling circuit which samples an output from the comparator in synchronism with a clock signal. The power source further includes a ?? modulator which quantizes an output from the integrator, outputs a quantized signal, and negative-feeds back the quantized signal to suppress the quantization error of the input signal. In the switching power source, a resistance value adjustment circuit changes the hysteresis width of the quantization reference value by changing the resistance value of the variable resistor of the comparator on the basis of a signal output from a detection circuit which detects at least one of an external control signal and the output voltage and load current of the switching power source.
    Type: Grant
    Filed: February 14, 2006
    Date of Patent: February 27, 2007
    Assignee: Canon Kabushiki Kaisha
    Inventor: Masayuki Nagai
  • Publication number: 20060181256
    Abstract: There is provided a switching power source capable of quickly responding to a change in output at high efficiency over a wide output voltage range. The power source includes an integrator, a comparator which compares an output from the integrator with a quantization reference value, and a sampling circuit which samples an output from the comparator in synchronism with a clock signal. The power source further includes a ?? modulator which quantizes an output from the integrator, outputs a quantized signal, and negative-feeds back the quantized signal to suppress the quantization error of the input signal. In the switching power source, a resistance value adjustment circuit changes the hysteresis width of the quantization reference value by changing the resistance value of the variable resistor of the comparator on the basis of a signal output from a detection circuit which detects at least one of an external control signal and the output voltage and load current of the switching power source.
    Type: Application
    Filed: February 14, 2006
    Publication date: August 17, 2006
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: MASAYUKI NAGAI
  • Patent number: 6793603
    Abstract: A power transmission system which includes a transmission device and a power transfer system. The transmission device includes an input shaft to which a drive force from a motor is inputted, a transmission mechanism arranged coaxially with the input shaft, and a countershaft parallel to the input shaft. The power transfer system distributes the drive force transmitted to the countershaft to front and rear wheels, and includes a sub transmission mechanism coaxially arranged in an end of the countershaft.
    Type: Grant
    Filed: October 23, 2002
    Date of Patent: September 21, 2004
    Assignees: Tochigi Fuji Sangyo Kabushiki Kaisha, JATCO Ltd.
    Inventors: Masao Teraoka, Masayuki Nagai
  • Patent number: 6705964
    Abstract: A power transmission system includes an input shaft, a toroidal CVT arranged on the input shaft, a countershaft arranged parallel with the input shaft for transferring power output from the CVT to wheels, a power distributing device for distributing power from the countershaft to the front and rear wheels, a first casing for defining a first compartment accommodating the CVT, a second casing disposed adjacent to the first casing and for defining a second compartment accommodating the power distributing device, a separation wall arranged between the first compartment and the second compartment and for sealing the compartments in a fluid-tight manner, and first and second oils charged in the first and second compartments and having different characteristics.
    Type: Grant
    Filed: December 10, 2002
    Date of Patent: March 16, 2004
    Assignees: Jatco LTD, Tochigi Fuji Sangyo Kabushiki Kaisha
    Inventors: Masayuki Nagai, Masao Teraoka