Patents by Inventor Takashi Ihara
Takashi Ihara 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: 10644615Abstract: An electrostatic induction generator includes a housing, a first board fixed to the housing, and a second board arranged in parallel to the first board to be able move relative to it, in which electrostatic induction generator, counter electrodes are placed at a first facing surface of the first board, electrically charged films are placed at every other constant interval at a second facing surface of the second board so as to face the counter electrodes, the counter electrodes are comprised of pluralities of first electrodes and second electrodes provided separated from each other at the first facing surface, first electrodes and second electrodes are alternately arranged at constant intervals in a single line, a plurality of lines of single lines of the first electrodes and second electrodes are provided at the first facing surface, and the constant intervals of the plurality of lines respectively differ in phase.Type: GrantFiled: January 5, 2016Date of Patent: May 5, 2020Assignee: CITIZEN WATCH CO., LTD.Inventors: Yoichi Nagata, Akira Shiota, Makoto Watanabe, Akira Izumi, Takashi Ihara
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Patent number: 10566913Abstract: Provided is an electric power generating device capable of performing electret power generation by efficiently rotating a rotating electrode group.Type: GrantFiled: March 19, 2015Date of Patent: February 18, 2020Assignee: Citizen Watch Co., LTD.Inventors: Kensaku Matsumoto, Takashi Ihara, Makoto Watanabe, Akira Izumi
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Patent number: 10496044Abstract: A satellite radio-controlled watch, including a receiving unit for receiving a satellite radio wave containing time information and position information; a storage unit for storing intersection point information indicating a position of an intersection point between a reference line along a great circle orthogonal to a specific great circle on the earth or a reference line along the specific great circle on the earth or a circle parallel to the great circle and a time zone boundary, and time difference division information on a wedge-shaped or belt-shaped area that is adjacent to the reference line and to which the intersection point belongs, and a time zone determination unit for determining a time zone, based on the position information, the intersection point information, and the time difference division information.Type: GrantFiled: December 11, 2015Date of Patent: December 3, 2019Assignee: Citizen Watch Co., LTD.Inventors: Masayuki Araki, Kohichi Kazahari, Takashi Ihara
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Patent number: 10361642Abstract: Provided is an electronic device including a rotary power generation device using an electret, which is capable of preventing a spiral spring from being wound up or fully extended. The electronic device includes a power generation mechanism including: first rotary member, which is supported in a freely rotatable manner, and has a center of gravity shifted from a rotation center; second rotary member supported in a freely rotatable manner; an elastic member configured to elastically connect the first rotary member and the second rotary member to each other for rotary motions thereof; a stationary member arranged so as to be opposed to the second rotary member; and an electret film formed on a surface of any one of the second rotary member and the stationary member.Type: GrantFiled: March 26, 2015Date of Patent: July 23, 2019Assignees: CITIZEN HOLDINGS CO., LTD., CITIZEN WATCH CO., LTD.Inventors: Kensaku Matsumoto, Takashi Ihara, Makoto Watanabe, Akira Izumi
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Patent number: 10348219Abstract: A board arrangement structure includes a housing, a first board fastened to the housing, a second board arranged in parallel enabling, relative movement with respect to the first board, an electrically charged film, a counter electrode, and an output part outputting electric power generated between the electrically charged film and the counter electrode, at least one of the electrically charged film and the counter electrode being arranged at a first facing surface of the first board and the other being arranged at a second facing surface of the second board facing the first facing surface, and the first facing surface of the first board being, fastened to a reference mounting surface provided at the housing.Type: GrantFiled: February 27, 2015Date of Patent: July 9, 2019Assignee: CITIZEN WATCH CO., LTD.Inventors: Akira Izumi, Takashi Ihara, Makoto Watanabe
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Patent number: 10222761Abstract: An electronic watch or clock with an electrostatic induction generator, wherein the electrostatic induction generator has a rotary weight able to rotate with respect to a housing, a rotary member able to rotate with respect to the housing, a counter substrate fastened to the housing, a charging film arranged at one of the rotary member and counter substrate, and a counter electrode arranged facing the charging film at the other, outputs electric power generated between the charging film and the counter electrode to a quartz movement, and provides a window part at one or more locations among the dial plate, housing, or outside casing to enable rotation of the rotary member or transmission of rotation to be visually confirmed.Type: GrantFiled: August 13, 2015Date of Patent: March 5, 2019Assignee: CITIZEN WATCH CO., LTD.Inventors: Takashi Ihara, Akira Izumi, Makoto Watanabe
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Publication number: 20180026552Abstract: An electrostatic induction generator includes a housing, a first board fixed to the housing, and a second board arranged in parallel to the first board to be able move relative to it, in which electrostatic induction generator, counter electrodes are placed at a first facing surface of the first board, electrically charged films are placed at every other constant interval at a second facing surface of the second board so as to face the counter electrodes, the counter electrodes are comprised of pluralities of first electrodes and second electrodes provided separated from each other at the first facing surface, first electrodes and second electrodes are alternately arranged at constant intervals in a single line, a plurality of lines of single lines of the first electrodes and second electrodes are provided at the first facing surface, and the constant intervals of the plurality of lines respectively differ in phase.Type: ApplicationFiled: January 5, 2016Publication date: January 25, 2018Inventors: Yoichi NAGATA, Akira SHIOTA, Makoto WATANABE, Akira IZUMI, Takashi IHARA
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Publication number: 20170357222Abstract: A satellite radio-controlled watch, including a receiving unit for receiving a satellite radio wave containing time information and position information; a storage unit for storing intersection point information indicating a position of an intersection point between a reference line along a great circle orthogonal to a specific great circle on the earth or a reference line along the specific great circle on the earth or a circle parallel to the great circle and a time zone boundary, and time difference division information on a wedge-shaped or belt-shaped area that is adjacent to the reference line and to which the intersection point belongs, and a time zone determination unit for determining a time zone, based on the position information, the intersection point information, and the time difference division information.Type: ApplicationFiled: December 11, 2015Publication date: December 14, 2017Inventors: Masayuki ARAKI, Kohichi KAZAHARI, Takashi IHARA
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Publication number: 20170269557Abstract: An electronic watch or clock with an electrostatic induction generator, wherein the electrostatic induction generator has a rotary weight able to rotate with respect to a housing, a rotary member able to rotate with respect to the housing, a counter substrate fastened to the housing, a charging film arranged at one of the rotary member and counter substrate, and a counter electrode arranged facing the charging film at the other, outputs electric power generated between the charging film and the counter electrode to a quartz movement, and provides a window part at one or more locations among the dial plate, housing, or outside casing to enable rotation of the rotary member or transmission of rotation to be visually confirmed.Type: ApplicationFiled: August 13, 2015Publication date: September 21, 2017Inventors: Takashi IHARA, Akira IZUMI, Makoto WATANABE
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Publication number: 20170133952Abstract: Provided is an electric power generating device capable of performing electret power generation by efficiently rotating a rotating electrode group.Type: ApplicationFiled: March 19, 2015Publication date: May 11, 2017Applicant: CITIZEN HOLDINGS CO., LTD.Inventors: Kensaku MATSUMOTO, Takashi IHARA, Makoto WATANABE, Akira IZUMI
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Publication number: 20170110988Abstract: A board arrangement structure includes a housing, a first board fastened to the housing, a second board arranged in parallel enabling, relative movement with respect to the first board, an electrically charged film, a counter electrode, and an output part outputting electric power generated between the electrically charged film and the counter electrode, at least one of the electrically charged film and the counter electrode being arranged at a first facing surface of the first board and the other being arranged at a second facing surface of the second board facing the first facing surface, and the first facing surface of the first board being, fastened to a reference mounting surface provided at the housing.Type: ApplicationFiled: February 27, 2015Publication date: April 20, 2017Applicant: CITIZEN HOLDINGS CO., LTD.Inventors: Akira IZUMI, Takashi IHARA, Makoto WATANABE
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Publication number: 20170019035Abstract: Provided is an electronic device including a rotary power generation device using an electret, which is capable of preventing a spiral spring from being wound up or fully extended. The electronic device includes a power generation mechanism including: first rotary member, which is supported in a freely rotatable manner, and has a center of gravity shifted from a rotation center; second rotary member supported in a freely rotatable manner; an elastic member configured to elastically connect the first rotary member and the second rotary member to each other for rotary motions thereof; a stationary member arranged so as to be opposed to the second rotary member; and an electret film formed on a surface of any one of the second rotary member and the stationary member.Type: ApplicationFiled: March 26, 2015Publication date: January 19, 2017Inventors: Kensaku MATSUMOTO, Takashi IHARA, Makoto WATANABE, Akira IZUMI
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Patent number: 8895227Abstract: A developing solution is disclosed with which it is possible to develop a photoresist disposed on a substrate including a conductive polymer. Also disclosed is a method for forming a resist pattern using the developing solution. The developing solution contains one or more acids and/or salts thereof, the acids being selected from inorganic acids, amino acids having an isoelectric point less than 7, and carboxylic acids having two or more carboxy groups. Use of this developing solution hence inhibits the phenomenon in which a substrate including a conductive polymer suffers an increase in surface resistivity due to a developing solution, and makes it possible to obtain a fine resist pattern.Type: GrantFiled: January 20, 2011Date of Patent: November 25, 2014Assignee: Toagosei Co., Ltd.Inventors: Takashi Ihara, Hiromu Taguchi
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Publication number: 20130017375Abstract: A developing solution is disclosed with which it is possible to develop a photoresist disposed on a substrate including a conductive polymer. Also disclosed is a method for forming a resist pattern using the developing solution. The developing solution contains one or more acids and/or salts thereof, the acids being selected from inorganic acids, amino acids having an isoelectric point less than 7, and carboxylic acids having two or more carboxy groups. Use of this developing solution hence inhibits the phenomenon in which a substrate including a conductive polymer suffers an increase in surface resistivity due to a developing solution, and makes it possible to obtain a fine resist pattern.Type: ApplicationFiled: January 20, 2011Publication date: January 17, 2013Applicant: TOAGOSEI CO., LTDInventors: Takashi Ihara, Hiromu Taguchi
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Publication number: 20120273454Abstract: An etching liquid for a conductive polymer is disclosed which comprises greater than 0.5 wt % but no greater than 30 wt % of (NH4)4Ce(S04)4.Type: ApplicationFiled: April 23, 2012Publication date: November 1, 2012Applicants: TOAGOSEI CO., LTD., TSURUMI SODA CO., LTD.Inventors: Takashi IHARA, Takahiro Fujimoto
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Patent number: 8081154Abstract: There is provided a liquid crystal comprising a liquid crystal panel with a memory effect (2) sandwiching liquid crystals of a memory effect, a driving circuit (10) outputs driving voltage for driving the liquid crystal panel with a memory effect (2) and a temperature sensor for detecting an ambient temperature, wherein the driving circuit (10) includes a control circuit (11) for varying a driving voltage. The control circuit has a first temperature compensation range where the driving voltage is increased from a high temperature side toward a lower temperature side according to temperature information detected by the temperature sensor (3), and a second temperature compensation range where the driving voltage is rendered in a maximum value at a predetermined temperature, or rendered substantially equal to, or smaller than the maximum value on a side of the boundary, lower than the predetermined temperature.Type: GrantFiled: March 15, 2007Date of Patent: December 20, 2011Assignee: Citizen Holdings Co., Ltd.Inventors: Sinya Kondoh, Takashi Ihara
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Publication number: 20110209906Abstract: A process for producing a substrate having a patterned conductive polymer film is provided in which stripping properties are excellent, and discoloration of an end part of the conductive polymer film when a resist film is stripped from the conductive polymer film is suppressed.Type: ApplicationFiled: November 18, 2009Publication date: September 1, 2011Inventor: Takashi Ihara
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Patent number: 7948830Abstract: In an electronic device that includes a first display unit (28) and a second display unit (29) that differs from the first display unit (28) in at least a type, a driving method to perform a display control, and a mode of driving to perform the display control, and that displays a plurality of functions using the first display unit (28) and the second display unit (29), a change request to change from a display in a normal mode (11) to a function mode (13) is acquired, and only a display mode of the second display unit (29) is changed, when the change request is made, to a preparation mode (12) without changing a display mode of the first display unit (28) that is in the normal mode (11) when the display modes of the first display unit (28) and the second display unit (29) are to be changed based on the acquired change request.Type: GrantFiled: March 20, 2006Date of Patent: May 24, 2011Assignee: Citizen Holdings Co., Ltd.Inventors: Noritoshi Suzuki, Takashi Ihara
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Patent number: 7948464Abstract: An object of the present invention is to provide a memory-type liquid crystal display device capable of controlling a color to be displayed in a peripheral area without using display data based on which display is achieved in the peripheral area.Type: GrantFiled: September 28, 2005Date of Patent: May 24, 2011Assignee: Citizen Holdings Co., Ltd.Inventors: Shinya Kondoh, Akira Suguro, Takashi Ihara, Yuuji Yano
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Publication number: 20110024386Abstract: An object of the present invention is to provide an etching method that enables control of etching of a conductive polymer using a specific cerium (IV) compound to be carried out simply and easily, thus ensuring that etching is carried out stably, and to provide a substrate having a conductive polymer that has been etched by the etching method. The etching method of the present invention includes an etching step of etching a conductive polymer using an etching liquid containing a specific cerium (IV) compound, an analysis step of analyzing the etching liquid by at least one analysis means selected from the group consisting of oxidation-reduction potential measurement, oxidation-reduction titration, and electrical conductivity measurement, and a control step of controlling the etching step according to the results obtained in the analysis step.Type: ApplicationFiled: March 19, 2009Publication date: February 3, 2011Inventors: Yasuo Nishimura, Takashi Ihara