Patents by Inventor Takahiro Matsuo
Takahiro Matsuo 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: 9786884Abstract: The present invention provides a long separator roll. A method according to the present invention for producing a battery separator roll includes a connecting step of connecting two or more separators (12b and 12c) to each other along a lengthwise direction so that the battery separator roll is produced.Type: GrantFiled: February 9, 2015Date of Patent: October 10, 2017Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Takahiro Matsuo, Satoshi Yoneyama
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Patent number: 9742100Abstract: A connector includes a mat seal in which lips are protruded from an inner circumferential surface of a wire insertion hole, and a terminal to which an electric wire is connected and which has a cylindrical body to be inserted a mating terminal. The terminal is accommodated in a position that passes through the wire insertion hole, and the electric wire is arranged in a press-fitted state in the wire insertion hole. When a curvature radius of an edge part of the cylindrical body that contacts to the inner circumferential surface of the wire insertion hole in a process of passing through the wire insertion hole is denoted by R1 and a compression ratio of the lip in the process of passing through the wire insertion hole is denoted by CR1, the curvature radius R1 is set based on a formula of difficulty of mat seal breakage =f(R1/CR1).Type: GrantFiled: September 28, 2016Date of Patent: August 22, 2017Assignee: YAZAKI CORPORATIONInventors: Ryo Fujikawa, Takahiro Matsuo
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Publication number: 20170217722Abstract: A wagon (90b) Includes a plurality of horizontal support bars (91f). A separator roll (12b) is stocked while the horizontal support bar is inserted into a core of the separator roll (12b) around which core a separator is rolled. This can prevent deformation and roll misalignment of the stocked separator roll.Type: ApplicationFiled: September 29, 2015Publication date: August 3, 2017Applicant: Sumitomo Chemical Company, LimitedInventors: Satoshi YONEYAMA, Takahiro MATSUO, Daizaburo YASHIKI
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Publication number: 20170168413Abstract: An optical writing device including: a current-driven light-emitting element; a thin film transistor configured to supply the light-emitting element with a drive current based on a luminance signal to put the light-emitting element in an on state; and a controller configured to, for each line of an image page, correct a first value of the luminance signal to yield a second value of the luminance signal, and to supply the thin film transistor with the luminance signal at the second value. The second value compensates for a light amount fluctuation of the light-emitting element that is dependent upon an emission/non-emission history, from an initial line of the image page to the line, of a first continuous period where the light-emitting element is kept in the on state and a second continuous period where the light-emitting period is kept in an off state.Type: ApplicationFiled: November 16, 2016Publication date: June 15, 2017Applicant: KONICA MINOLTA, INC.Inventors: Takaki UEMURA, So YANO, Masayuki IIJIMA, Takahiro MATSUO, Akira TANIYAMA
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Patent number: 9671715Abstract: An optical writing device performing optical writing onto a photoreceptor, including: a light-emitting unit including a plurality of light-emitting elements that form a plurality of element rows spaced from one another in a sub scanning direction, each of the light-emitting elements having a main scanning direction position differing from a main scanning direction position of any other one of the light-emitting elements; a plurality of signal output units, one for each element row, each outputting a light amount signal for each light-emitting element in a corresponding element row, each light amount signal indicating an amount of light to be emitted by a corresponding light-emitting element; and a plurality of drive units, one for each light-emitting element, each, when receiving a light amount signal for a corresponding light-emitting element, supplying a drive current in accordance with the light amount signal to the corresponding light-emitting element.Type: GrantFiled: November 4, 2015Date of Patent: June 6, 2017Assignee: KONICA MINOLTA, INC.Inventors: So Yano, Yasushi Nagasaka, Masayuki Iijima, Takahiro Matsuo, Takaki Uemura
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Patent number: 9671752Abstract: An optical writing device adopting a low cost and simple structure can obtain temperatures of light emitting elements. The device comprises a plurality of light emitting elements arranged linearly in a main scanning direction. The amount of light emitting of the light emitting elements changes by self-generated heat. The light emitting elements are divided into a plurality of groups. Each of the groups includes a prescribed number of light emitting elements. The device comprises a control unit for calculating the amount of heat generation of the light emitting elements for each of groups from clock time t0 to clock time t0+?t. The control unit calculates the temperature for each of the groups at the clock time t0+?t, based on the amount of heat generation from the clock time t0 to the clock time t0+?t and the temperature at the clock time t0.Type: GrantFiled: May 12, 2016Date of Patent: June 6, 2017Assignee: KONICA MINOLTA. INC.Inventors: Akira Taniyama, So Yano, Takahiro Matsuo, Yasushi Nagasaka, Takaki Uemura, Masayuki Iijima
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Publication number: 20170123341Abstract: An optical writing device driving a light-emitting element array, modulating light according to a screening pattern that expresses a dithered image, and performing optical writing by focusing light emitted from the light-emitting element array through a lens array onto a photoreceptor. The optical writing device includes an acquisition unit that acquires a write start position for writing to the photoreceptor in a main scanning direction and a control unit that performs a control when the write start position corresponds to an i-th light-emitting element from a reference position that corresponds to a first light-emitting element in the main scanning direction, i being a positive integer greater than 1, wherein the control unit supplies pixel values to the i-th light-emitting element onwards, the pixel values being assigned from pixels of the screening pattern from an i-th pixel onwards, from a leading pixel of the screening pattern in the main scanning direction.Type: ApplicationFiled: October 28, 2016Publication date: May 4, 2017Applicant: Konica Minolta, Inc.Inventors: Takahiro MATSUO, So YANO, Masayuki IIJIMA, Takaki UEMURA, Akira TANIYAMA
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Publication number: 20170115592Abstract: A light emitting device configured to cause a series circuit in which an OLED is connected to a thin film transistor to emit light by applying a predetermined voltage to the thin film transistor includes: a forward direction voltage estimating unit configured to estimate a forward direction voltage in a case where the OLED is caused to emit light at a set light quantity; a driving current amount estimating unit configured to estimate a driving current amount required for causing the OLED to emit light at the set light quantity; a source-drain voltage calculating unit configured to calculate a source-drain voltage applied to the thin film transistor from the predetermined voltage and the forward direction voltage; and a gate-source voltage determining unit configured to determine a gate-source voltage of the thin film transistor corresponding to the source-drain voltage in a case where the driving current amount is a drain current.Type: ApplicationFiled: September 30, 2016Publication date: April 27, 2017Applicant: KONICA MINOLTA, INC.Inventors: So YANO, Masayuki IIJIMA, Takahiro MATSUO, Takaki UEMURA, Akira TANIYAMA
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Publication number: 20170093080Abstract: A connector includes a mat seal in which lips are protruded from an inner circumferential surface of a wire insertion hole, and a terminal to which an electric wire is connected and which has a cylindrical body to be inserted a mating terminal. The terminal is accommodated in a position that passes through the wire insertion hole, and the electric wire is arranged in a press-fitted state in the wire insertion hole. When a curvature radius of an edge part of the cylindrical body that contacts to the inner circumferential surface of the wire insertion hole in a process of passing through the wire insertion hole is denoted by R1 and a compression ratio of the lip in the process of passing through the wire insertion hole is denoted by CR1, the curvature radius R1 is set based on a formula of difficulty of mat seal breakage=f(R1/CR1).Type: ApplicationFiled: September 28, 2016Publication date: March 30, 2017Applicant: YAZAKI CORPORATIONInventors: Ryo FUJIKAWA, Takahiro MATSUO
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Publication number: 20170033485Abstract: A contact connection structure includes: a first contact portion including an indent portion spherically protruding, the first contact portion including a plating layer formed on a surface of the first contact portion; and a second contact portion including a plating layer formed on a surface of the second contact portion. The indent portion of the first contact portion is slidable on a contact surface of the second contact portion. The indent portion of the first contact portion at a terminal insertion completed position is in contact with the second contact portion. The contact surface of the second contact portion includes an oxide-film shaving portion having an annular arc portion curved along a circumference portion of the indent portion.Type: ApplicationFiled: October 11, 2016Publication date: February 2, 2017Applicant: YAZAKI CORPORATIONInventors: Masayuki FUKUI, Yoshitaka ITO, Takaya KONDOU, Takahiro MATSUO, Kenzo TANAKA, Takahiro YUDATE, Masanori ONUMA
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Patent number: 9508975Abstract: A nonaqueous electrolyte secondary battery separator is a porous film containing a polyolefin as a main component. The nonaqueous electrolyte secondary battery separator (i) has a phase difference of 80 nm or less with respect to light having a wavelength of 590 nm in a state where the nonaqueous electrolyte secondary battery separator is impregnated with ethanol and (ii) has a porosity of 30% to 60%.Type: GrantFiled: June 24, 2016Date of Patent: November 29, 2016Assignee: Sumitomo Chemical Company, LimitedInventor: Takahiro Matsuo
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Publication number: 20160334756Abstract: An optical writing device adopting a low cost and simple structure can obtain temperatures of light emitting elements. The device comprises a plurality of light emitting elements arranged linearly in a main scanning direction. The amount of light emitting of the light emitting elements changes by self-generated heat. The light emitting elements are divided into a plurality of groups. Each of the groups includes a prescribed number of light emitting elements. The device comprises a control unit for calculating the amount of heat generation of the light emitting elements for each of groups from clock time t0 to clock time t0+?t. The control unit calculates the temperature for each of the groups at the clock time t0+?t, based on the amount of heat generation from the clock time t0 to the clock time t0+?t and the temperature at the clock time t0.Type: ApplicationFiled: May 12, 2016Publication date: November 17, 2016Applicant: Konica Minolta, Inc.Inventors: Akira TANIYAMA, So YANO, Takahiro MATSUO, Yasushi NAGASAKA, Takaki UEMURA, Masayuki llJIMA
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Publication number: 20160308183Abstract: The present invention provides a long separator roll. A method according to the present invention for producing a battery separator roll includes a connecting step of connecting two or more separators (12b and 12c) to each other along a lengthwise direction so that the battery separator roll is produced.Type: ApplicationFiled: February 9, 2015Publication date: October 20, 2016Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Takahiro MATSUO, Satoshi YONEYAMA
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Patent number: 9471001Abstract: An optical writing device including light-emitting elements forming element arrays. The element arrays are each composed of light-emitting elements arranged in line in a main scanning direction, and reside at respective positions along a sub-scanning direction. A correction unit receives signal values in one-to-one correspondence with the light-emitting elements and performs correction to acquire corrected signal values each indicating a light amount of a corresponding light-emitting element. The correction is for eliminating a light amount difference in the main scanning direction occurring for each element array. A driving unit supplies driving currents to the light-emitting elements based on the corrected signal values, and a control unit performs a control of causing at least two element arrays to emit light for different durations within one main scanning period. The control is for eliminating a light amount difference in the sub scanning direction occurring between the at least two element arrays.Type: GrantFiled: October 23, 2015Date of Patent: October 18, 2016Assignee: KONICA MINOLTA, INC.Inventors: Masayuki Iijima, So Yano, Yasushi Nagasaka, Takaki Uemura, Takahiro Matsuo
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Publication number: 20160282751Abstract: An optical writing device performing optical writing with a light-emitting element, performing light amount switching, and including: a unit estimating a first value corresponding to a current amount for causing the element to emit a first light amount immediately after the switching; a unit supplying to the element, from immediately after the switching, a current amount corresponding to a first digital value acquired by quantizing the first value; a unit estimating a time amount through which a current amount for keeping the element emitting the first light amount increases from the current amount for causing the element to emit the first light amount immediately after the switching to a current amount corresponding to a second digital value greater than the first digital value by one step; and a unit supplying to the element, when the time amount elapses after the switching, the current amount corresponding to the second digital value.Type: ApplicationFiled: March 25, 2016Publication date: September 29, 2016Applicant: Konica Minolta, Inc.Inventors: So Yano, Yasushi Nagasaka, Masayuki Iijima, Takahiro Matsuo, Takaki Uemura, Akira Taniyama
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Publication number: 20160240937Abstract: A crimp terminal (10) includes a core wire crimping portion (16) for crimping a core wire (1), the core wire being formed of a plurality of element wires. The core wire crimping portion (16) has a bottom portion (16a), and a swage piece (16b) extended from a side of the bottom portion (16a). The core wire crimping portion (16) is provided with a plurality of protrusions (19) configured to penetrate into the core wire (1).Type: ApplicationFiled: April 28, 2016Publication date: August 18, 2016Applicant: YAZAKI CORPORATIONInventor: Takahiro MATSUO
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Publication number: 20160150623Abstract: A light-emitting device including a light-emitting element and causing the light emitting element to emit different light amounts. The light-emitting device includes: a measurement unit, a predetermined value storage unit, and a driving signal calculation unit. The measurement unit measures a surrounding temperature of the light-emitting element. The predetermined value storage unit stores a predetermined value of a driving signal for causing the light-emitting element to emit light. The driving signal calculation unit executes calculation of a value of the driving signal for causing the light-emitting element to emit a desired light amount by applying a correction factor in accordance with the measured surrounding temperature and the desired light amount to the predetermined value of the driving signal.Type: ApplicationFiled: November 11, 2015Publication date: May 26, 2016Applicant: KONICA MINOLTA, INC.Inventors: Takaki UEMURA, Yasushi NAGASAKA, So YANO, Masayuki IIJIMA, Takahiro MATSUO
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Publication number: 20160131989Abstract: An optical writing device performing optical writing onto a photoreceptor, including: a light-emitting unit including a plurality of light-emitting elements that form a plurality of element rows spaced from one another in a sub scanning direction, each of the light-emitting elements having a main scanning direction position differing from a main scanning direction position of any other one of the light-emitting elements; a plurality of signal output units, one for each element row, each outputting a light amount signal for each light-emitting element in a corresponding element row, each light amount signal indicating an amount of light to be emitted by a corresponding light-emitting element; and a plurality of drive units, one for each light-emitting element, each, when receiving a light amount signal for a corresponding light-emitting element, supplying a drive current in accordance with the light amount signal to the corresponding light-emitting element.Type: ApplicationFiled: November 4, 2015Publication date: May 12, 2016Applicant: KONICA MINOLTA, INC.Inventors: So YANO, Yasushi Nagasaka, Masayuki Iijima, Takahiro Matsuo, Takaki Uemura
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Publication number: 20160124337Abstract: An optical writing device including light-emitting elements forming element arrays. The element arrays are each composed of light-emitting elements arranged in line in a main scanning direction, and reside at respective positions along a sub-scanning direction. A correction unit receives signal values in one-to-one correspondence with the light-emitting elements and performs correction to acquire corrected signal values each indicating a light amount of a corresponding light-emitting element. The correction is for eliminating a light amount difference in the main scanning direction occurring for each element array. A driving unit supplies driving currents to the light-emitting elements based on the corrected signal values, and a control unit performs a control of causing at least two element arrays to emit light for different durations within one main scanning period. The control is for eliminating a light amount difference in the sub scanning direction occurring between the at least two element arrays.Type: ApplicationFiled: October 23, 2015Publication date: May 5, 2016Applicant: KONICA MINOLTA, INC.Inventors: Masayuki IIJIMA, So YANO, Yasushi NAGASAKA, Takaki UEMURA, Takahiro MATSUO
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Publication number: 20150340707Abstract: The disclosure relates to an oxygen reduction catalyst, an oxygen reduction electrode, and a fuel cell each of which has a carbon nanowall doped with nitrogen. According to the disclosure, the oxygen reduction catalyst, the oxygen reduction electrode and the fuel cell can be provided at low cost.Type: ApplicationFiled: August 5, 2015Publication date: November 26, 2015Applicants: IHI Corporation, Public University Corporation Yokohama City UniversityInventors: Akihiko YOSHIMURA, Takahiro MATSUO, Norihito KAWAGUCHI, Kumiko YOSHIHISA, Masaru TACHIBANA, Seog Chu SHIN