Patents by Inventor Masahiro Yamashita
Masahiro Yamashita 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).
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Patent number: 9540459Abstract: To provide a method of efficiently affording olefin polymers having a high molecular weight and a high melting point even under industrially advantageous high-temperature conditions. A production method of an olefin polymer to solve the above problem includes polymerizing monomer(s) including at least one ?-olefin having 3 or more carbon atoms at 50° C. to 200° C. in the presence of an olefin polymerization catalyst including; (A) a crosslinked metallocene compound represented by General Formula [I] below; and (B) at least one compound selected from (b-1) an organoaluminum oxy-compound, (b-2) a compound that forms an ion pair by reacting with the crosslinked metallocene compound (A), and (b-3) an organoalunimum compound.Type: GrantFiled: March 11, 2014Date of Patent: January 10, 2017Assignee: MITSUI CHEMICALS, INC.Inventors: Ikuko Ebisawa, Hideo Kitagawa, Takashi Yukita, Masahiro Yamashita, Kouji Takeda, Hiromu Kaneyoshi
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Publication number: 20160299094Abstract: A fluid state detection apparatus which can detect a short failure in which a constituent Wheatstone bridge circuit is shorted to a power supplyA combustible gas detection apparatus (1) judges that a short failure has occurred in a constant temperature control circuit (231) (S240) when a top potential V21 is equal to or greater than a first judgment value Vth1 and a difference D1 (=V11?V31) is equal to or greater than a second judgment value Vth2. As a result, apparatus (1) can distinguish “a state in which a bridge circuit (210) is shorted to a DC power supply (40) (where the constant temperature control circuit 231 is in a short failure state)” from “a state in which the resistance of the heat generation resistor (15) deceases due to a combustible gas (hydrogen)” based on the top potential V21 and the difference D1.Type: ApplicationFiled: April 5, 2016Publication date: October 13, 2016Applicant: NGK SPARK PLUG CO., LTD.Inventors: Masahiro YAMASHITA, Shoji KITANOYA, Masaya WATANABE
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Patent number: 9398222Abstract: An image display device capable of providing satisfactory user's visibility of an image including object images when the image and display bodies specifying particular regions of the object images are screen displayed. In a case where a horizontal direction distance between face detection frames for object images adjacent on a screen is equal to or less than a first threshold value and a vertical direction distance between face detection frames exceeds a second threshold value, a system controller of the image display device determines which one of the face detection frames is located on an upper side of the screen. A human body detection frame for the object image corresponding to the face detection frame determined as being located on an upper side on the screen is made non-display.Type: GrantFiled: September 19, 2013Date of Patent: July 19, 2016Assignee: CANON KABUSHIKI KAISHAInventors: Masahiro Yamashita, Akihiko Sato, Kazuyoshi Kiyosawa
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Patent number: 9315602Abstract: [Object] There is provided a method which enables an olefin polymer having high melting point and high molecular weight to be produced even at high temperature proper in an industrial production process. [Solution] A method for producing an olefin polymer is provided, the method including polymerizing an olefin having two or more carbon atoms in the presence of a catalyst for olefin polymerization, wherein the catalyst for olefin polymerization includes (A) a bridged metallocene compound represented by Formula [1] and (B) at least one compound selected from, for example, an organoaluminum oxy-compound and an organoaluminum compound: [where R1 to R4 each represent, for example, a hydrocarbon group; R5 to R9 each represent, for example, a hydrogen atom or a halogen atom; R10 and R11 each represent, for example, a hydrogen atom; and R12 represents, for example, a hydrocarbon group. Y represents, for example, a carbon atom.Type: GrantFiled: February 28, 2013Date of Patent: April 19, 2016Assignee: MITSUI CHEMICALS, INC.Inventors: Masahiro Yamashita, Takashi Yukita, Hiromu Kaneyoshi
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Patent number: 9285333Abstract: A combustible gas detection device includes an energization control circuit which controls the switching of the energization state of a heat generation resistor every predetermined time period such that the heat generation resistor alternately has resistances corresponding to two predetermined temperatures, a temperature measurement resistor disposed on the same substrate on which the heat generation resistor is disposed, where its resistance changes with the environmental temperature, a gas concentration computation section which calculates the combustible gas concentration by using a voltage generated across the heat generation resistor which is detected when electricity is supplied to the heat generation resistor and the environmental temperature based on a voltage change caused by a change in the resistance of the temperature measurement resistor.Type: GrantFiled: February 9, 2012Date of Patent: March 15, 2016Assignee: NGK SPARK PLUG CO., LTD.Inventors: Masaya Watanabe, Shoji Kitanoya, Daisuke Ichikawa, Masahiro Yamashita
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Publication number: 20160061756Abstract: A first bridge fixed resistor (211) of a combustible gas detection apparatus (1) is composed of a resistor element which is less likely to deteriorate as compared with a second bridge fixed resistor (212) and a variable resistor section (213). The combustible gas detection apparatus (1) can judge a deteriorated state of at least one of the second bridge fixed resistor (212) and the variable resistor section (213) on the basis of the absolute value of a difference temperature ?T which is the difference between a detection-time judgment temperature T1 and a reference judgment temperature T0. The combustible gas detection apparatus (1) obtains a corrected high-temperature-time voltage VH? and a corrected low-temperature-time voltage VL? through use of a voltage error ?V1. Thus, a decrease in the accuracy in detecting the hydrogen concentration can be suppressed even when the resistance of the resistor section changes.Type: ApplicationFiled: June 24, 2015Publication date: March 3, 2016Applicant: NGK SPARK PLUG CO., LTD.Inventors: Masahiro YAMASHITA, Shoji KITANOYA, Masaya WATANABE, Daisuke ICHIKAWA, Yusuke MATSUKURA
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Publication number: 20160039952Abstract: To provide a method of efficiently affording olefin polymers having a high molecular weight and a high melting point even under industrially advantageous high-temperature conditions. A production method of an olefin polymer to solve the above problem includes polymerizing monomer(s) including at least one ?-olefin having 3 or more carbon atoms at 50° C. to 200° C. in the presence of an olefin polymerization catalyst including; (A) a crosslinked metallocene compound represented by General Formula [I] below; and (B) at least one compound selected from (b-1) an organoaluminum oxy-compound, (b-2) a compound that forms an ion pair by reacting with the crosslinked metallocene compound (A), and (b-3) an organoalunimum compound.Type: ApplicationFiled: March 11, 2014Publication date: February 11, 2016Applicant: MITSUI CHEMICALS, INC.Inventors: Ikuko EBISAWA, Hideo KITAGAWA, Takashi YUKITA, Masahiro YAMASHITA, Kouji TAKEDA, Hiromu KANEYOSHI
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Patent number: 9244032Abstract: A gas detecting apparatus including: a heating resistor exposed to a detected atmosphere, and a control circuit for controlling the heating resistor at two different temperatures, wherein each output voltage from the heating resistor corresponding to the different temperatures is detected when the heating resistor is controlled to the different temperatures, and a state of a gas is obtained based on the detected output voltage. For example, two different offset voltages are set, each potential difference obtained by subtracting each of the offset voltages from corresponding detected output voltages is amplified and the state of the gas is obtained using the amplified potential differences.Type: GrantFiled: March 28, 2012Date of Patent: January 26, 2016Assignee: NGK SPARK PLUG CO., LTD.Inventors: Shoji Kitanoya, Masahiro Yamashita, Masaya Watanabe, Daisuke Ichikawa
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Publication number: 20150226688Abstract: A gas detector includes a detecting element, a circuit board, a housing case having a gas introduction hole, and a metal member which covers the gas introduction hole. The detecting element is disposed under the metal member. The gas detector further includes a detecting element wiring fusing prevention member which is electrically conductive and is electrically connected to a grounding line of the circuit board. The detecting element wiring fusing prevention member is disposed at a position such that the shortest distance between the metal member and the detecting element wiring fusing prevention member is smaller than that between the metal member and the detecting element.Type: ApplicationFiled: January 29, 2015Publication date: August 13, 2015Applicant: NGK Spark Plug Co., LTD.Inventors: Masaya WATANABE, Shoji KITANOYA, Daisuke ICHIKAWA, Masahiro YAMASHITA, Yusuke MATSUKURA, Kaoru HISADA
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Publication number: 20150153294Abstract: A gas detector includes a gas detection element having a protection layer formed of an oxide film mainly containing tantalum oxide (Ta2O5). Since the protection layer has excellent condensed-water resistance, even when water droplets adhere thereto, the morphology thereof does not change from dense to porous. Thus, since a change in property of the protection layer, which would otherwise be caused by adhesion of water droplets, can be reduced in the gas detector, even when water droplets adhere to the outermost surface layer of the gas detection element, impurities can be prevented from entering the protection layer (the outermost surface layer), whereby a change in thermal capacity of the gas detection element can be reduced. Thus, the gas detection element of the gas detector has excellent alkali resistance and condensed-water resistance.Type: ApplicationFiled: November 26, 2014Publication date: June 4, 2015Applicant: NGK SPARK PLUG CO., LTD.Inventors: Masaya WATANABE, Shoji KITANOYA, Daisuke ICHIKAWA, Masahiro YAMASHITA, Yusuke MATSUKURA
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Publication number: 20150116775Abstract: An image processing apparatus which is capable of preventing the display of an operation item, such as an icon, from hindering user's viewing an image which the user desires to view. A distance and position-detecting section and a system controller detect a distance between a screen and an operation element. The system controller displays at least one operation candidate item on the screen when the detected distance becomes not larger than a first threshold distance. Further, when the detected distance becomes not larger than the first predetermined threshold distance, the system controller changes a display form of the operation candidate item depending on the detected distance and displays the operation candidate item as an operable item.Type: ApplicationFiled: January 5, 2015Publication date: April 30, 2015Inventors: Masahiro Yamashita, Yuji Koide
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Publication number: 20150045523Abstract: [Object] There is provided a method which enables an olefin polymer having high melting point and high molecular weight to be produced even at high temperature proper in an industrial production process. [Solution] A method for producing an olefin polymer is provided, the method including polymerizing an olefin having two or more carbon atoms in the presence of a catalyst for olefin polymerization, wherein the catalyst for olefin polymerization includes (A) a bridged metallocene compound represented by Formula [1] and (B) at least one compound selected from, for example, an organoaluminum oxy-compound and an organoaluminum compound: [where R1 to R4 each represent, for example, a hydrocarbon group; R5 to R9 each represent, for example, a hydrogen atom or a halogen atom; R10 and R11 each represent, for example, a hydrogen atom; and R12 represents, for example, a hydrocarbon group. Y represents, for example, a carbon atom.Type: ApplicationFiled: February 28, 2013Publication date: February 12, 2015Inventors: Masahiro Yamashita, Takashi Yukita, Hiromu Kaneyoshi
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Patent number: 8947352Abstract: An image processing apparatus which is capable of preventing the display of an operation item, such as an icon, from hindering user's viewing an image which the user desires to view. A distance and position-detecting section and a system controller detect a distance between a screen and an operation element. The system controller displays at least one operation candidate item on the screen when the detected distance becomes not larger than a first threshold distance. Further, when the detected distance becomes not larger than the first predetermined threshold distance, the system controller changes a display form of the operation candidate item depending on the detected distance and displays the operation candidate item as an operable item.Type: GrantFiled: April 23, 2012Date of Patent: February 3, 2015Assignee: Canon Kabushiki KaishaInventors: Masahiro Yamashita, Yuji Koide
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Patent number: 8716418Abstract: A process for producing a syndiotactic ?-olefin polymer having high racemic diad fraction and high molecular weight with excellent polymerization activity through a method permitting high-temperature polymerization. The production process comprises polymerizing a monomer that comprises at least one C3-10 ?-olefin and a small amount of ethylene, in the presence of an olefin polymerization catalyst comprising a transition metal compound (A) represented by the general formula [1], at least one compound (B) selected from an organoaluminum oxy-compound (b-1), a compound (b-2) that reacts with the transition metal compound (A) to form an ion pair and an organoaluminum compound (b-3), which process for producing a syndiotactic ?-olefin polymer satisfies the relationship: 0.001?PE/PO?0.030, provided that the molar amounts of ethylene and an ?-olefin having 3 to 10 carbon atoms that are fed into a polymerization reactor under a polymerization temperature of not lower than 25° C. are PE and PO, respectively.Type: GrantFiled: December 16, 2010Date of Patent: May 6, 2014Assignee: Mitsui Chemicals, Inc.Inventors: Masayoshi Yamamoto, Takashi Yukita, Masahiro Yamashita, Hiromu Kaneyoshi
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Publication number: 20140078372Abstract: An image display device capable of providing satisfactory user's visibility of an image including object images when the image and display bodies specifying particular regions of the object images are screen displayed. In a case where a horizontal direction distance between face detection frames for object images adjacent on a screen is equal to or less than a first threshold value and a vertical direction distance between face detection frames exceeds a second threshold value, a system controller of the image display device determines which one of the face detection frames is located on an upper side of the screen. A human body detection frame for the object image corresponding to the face detection frame determined as being located on an upper side on the screen is made non-display.Type: ApplicationFiled: September 19, 2013Publication date: March 20, 2014Applicant: CANON KABUSHIKI KAISHAInventors: Masahiro Yamashita, Akihiko Sato, Kazuyoshi Kiyosawa
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Publication number: 20140053631Abstract: A gas detection apparatus includes: a heating resistor; and an energization control unit which alternately switches a temperature of the heating resistor to two different temperatures. The gas detection apparatus calculates a density of combustible gas contained in the atmosphere using a heating resistor voltage in a high temperature period and a heating resistor voltage in a low temperature period; acquires three or more values of the heating resistor voltage in each target period; obtains a first average value of the values of the heating resistor voltage obtained in the target period of the high temperature period; obtains a second average value of the values of the heating resistor voltage obtained in the target period of the low temperature period; and uses the first and second average values for a calculation of density of the combustible gas.Type: ApplicationFiled: August 22, 2013Publication date: February 27, 2014Applicant: NGK Spark Plug Co., Ltd.Inventors: Masaya WATANABE, Shoji KITANOYA, Daisuke ICHIKAWA, Masahiro YAMASHITA
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Publication number: 20130298638Abstract: A combustible gas detection device includes an energization control circuit which controls the switching of the energization state of a heat generation resistor every predetermined time period such that the heat generation resistor alternately has resistances corresponding to two predetermined temperatures, a temperature measurement resistor disposed on the same substrate on which the heat generation resistor is disposed, where its resistance changes with the environmental temperature, a gas concentration computation section which calculates the combustible gas concentration by using a voltage generated across the heat generation resistor which is detected when electricity is supplied to the heat generation resistor and the environmental temperature based on a voltage change caused by a change in the resistance of the temperature measurement resistor.Type: ApplicationFiled: February 9, 2012Publication date: November 14, 2013Applicant: NGK SPARK PLUG CO., LTD.Inventors: Masaya Watanabe, Shoji Kitanoya, Daisuke Ichikawa, Masahiro Yamashita
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Patent number: 8542263Abstract: There is provided a mounting structure of a mounted component, including: a holding member that holds a mounted component including a light source and of which position is adjusted within a plane substantially orthogonal to an optical axis of the light source; a shaft portion that projects from a side surface of a case body in which the light source is provided, in a direction along the optical axis of the light source; and a fixing member in which a contact portion coming into contact with the shaft portion is provided, wherein in a state in which the contact portion contacts the shaft portion, rotation of the fixing member is limited in an allowable range, and the fixing member is made to adhere to a surface of the holding member facing toward the fixing member in the direction along the optical axis, and is fixed to the shaft portion.Type: GrantFiled: August 25, 2010Date of Patent: September 24, 2013Assignee: Fuji Xerox Co., Ltd.Inventor: Masahiro Yamashita
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Patent number: 8445141Abstract: The present invention relates to a sulfonic acid group-containing polymer excellent in ion conductivity and durability, a method for producing the same, a resin composition containing the sulfonic acid group-containing polymer, a polymer electrolyte membrane, a polymer electrolyte membrane/electrode assembly, and a fuel cell. The sulfonic acid group-containing polymer of the present invention, in a first embodiment, includes a constituent represented by the following chemical formula 1: wherein X represents hydrogen or a monovalent cation species; Y represents a sulfone group or a ketone group; and n represents an arbitrary integer not less than 2.Type: GrantFiled: June 6, 2006Date of Patent: May 21, 2013Assignee: Toyo Boseki Kabushiki KaishaInventors: Kota Kitamura, Yoshimitsu Sakaguchi, Hiroki Yamaguchi, Masahiro Yamashita, Kousuke Sasai
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Publication number: 20120306738Abstract: An image processing apparatus which is capable of preventing the display of an operation item, such as an icon, from hindering user's viewing an image which the user desires to view. A distance and position-detecting section and a system controller detect a distance between a screen and an operation element. The system controller displays at least one operation candidate item on the screen when the detected distance becomes not larger than a first threshold distance. Further, when the detected distance becomes not larger than the first predetermined threshold distance, the system controller changes a display form of the operation candidate item depending on the detected distance and displays the operation candidate item as an operable item.Type: ApplicationFiled: April 23, 2012Publication date: December 6, 2012Applicant: CANON KABUSHIKI KAISHAInventors: Masahiro Yamashita, Yuji Koide