Patents by Inventor Koji Yoshikawa
Koji Yoshikawa 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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Publication number: 20110020872Abstract: A microorganism which produces compounds useful as an antifungal agent, particularly a therapeutic agent for deep-seated mycoses, such as mycotic sinusitis, is provided. The present inventors have conducted intensive studies on naturally-occurring microorganisms as a research for antifungal compounds, and found a fungus Acremonium persicinum which produces cyclic compounds having a potent antifungal activity and useful as a medicament, particularly an antifungal agent, and the present invention was completed.Type: ApplicationFiled: March 13, 2009Publication date: January 27, 2011Inventors: Ikuko Nakamura, Koji Yoshikawa, Teruhisa Masaki, Ryuichi Kanasaki, Neelam Shahab
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Publication number: 20110015121Abstract: A compound useful as an antifungal agent, particularly a therapeutic agent for deep-seated mycoses, is provided. A fungus Acremonium persicinum was collected, and cyclic compounds were isolated from culture liquids thereof. The present inventors confirmed that the cyclic compounds or salts thereof have a potent antifungal activity and are useful as medicaments, particularly an antifungal agent, and thus the present invention was completed. The cyclic compound and the salt thereof according to the present invention can be used as an agent for preventing or treating mycoses, particularly deep-seated mycoses.Type: ApplicationFiled: March 13, 2009Publication date: January 20, 2011Inventors: Ikuko Nakamura, Koji Yoshikawa, Keisuke Ohsumi, Ryuichi Kanasaki, Shigehiro Takase
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Publication number: 20100241362Abstract: A fuel property determining apparatus may comprise a first sensor and second sensor. The first sensor may detect a concentration of an alcohol contained in fuel. The second sensor may detect a vapor pressure of the target fuel. The fuel property determining apparatus may further comprise a memory and a processor. The memory may store first data for determining a “heavy/light gravity—vapor pressure” relationship based on the concentration of the alcohol. The processor may determine the fuel property of the target fuel based on the first data stored in the memory, the alcohol concentration detected by the first sensor, and the vapor pressure detected by the second sensor.Type: ApplicationFiled: March 22, 2010Publication date: September 23, 2010Applicant: AISAN KOGYO KABUSHIKI KAISHAInventors: Koji Yoshikawa, Hisashi Kino, Naoaki Matsubara
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Patent number: 7498459Abstract: A method for producing a (1-alkenyl)cyclopropane compound represented by the formula (2): wherein R1 and R2 are the same or different, and independently represent a hydrogen atom, an optionally substituted alkyl group, an optionally substituted alkenyl group, an optionally substituted alkynyl group, an optionally substituted aryl group or an optionally substituted aralkyl group, which comprises bringing a (2-formyl-1-alkenyl)cyclopropane compound represented by the formula (1): wherein R1 and R2 are the same as defined above, into contact with a palladium catalyst.Type: GrantFiled: March 18, 2005Date of Patent: March 3, 2009Assignee: Sumitomo Chemical Company, LimitedInventor: Koji Yoshikawa
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Publication number: 20070247143Abstract: A rotational angle sensor and a method for manufacturing the same, and a throttle control device with a rotational angle sensor, which may lower the cost, are provided. The rotational angle sensor includes each sensor IC 50(1), 50(2) for detecting a rotational angle of a rotor based on a magnetic field generated between a pair of magnets respectively disposed across the rotational axis of the rotor; each main terminal 61, 62, 63, 64 connected with each connection terminal 55, 56, 57 of each sensor IC 50(1), 50(2); and a holder member 90 for holding each sensor IC 50(1), 50(2) and connection portions of each main terminal 61, 62, 63, 64 on each sensor IC 50(1), 50(2) side. A sensor assembly 100 is constructed to form the sensor ICs 50(1), 50(2), the main terminals 61, 62, 63, 64 and the holder member 90 into an assembly. A potting material 102 is potted into the holder member 90.Type: ApplicationFiled: January 28, 2005Publication date: October 25, 2007Inventors: Tsutomu Ikeda, Yoshihiro Sakuma, Masaharu Nagasaka, Koji Yoshikawa, Kazumasa Nakashima
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Publication number: 20070197818Abstract: A method for producing a (1-alkenyl)cyclopropane compound represented by the formula (2): wherein R1 and R2 are the same or different, and independently represent a hydrogen atom, an optionally substituted alkyl group, an optionally substituted alkenyl group, an optionally substituted alkynyl group, an optionally substituted aryl group or an optionally substituted aralkyl group, which comprises bringing a (2-formyl-1-alkenyl)cyclopropane compound represented by the formula (1): wherein R1 and R2 are the same as defined above, into contact with a palladium catalyst.Type: ApplicationFiled: March 18, 2005Publication date: August 23, 2007Inventor: Koji YOSHIKAWA
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Patent number: 7216625Abstract: A sensor for a throttle control device. The throttle control device includes a throttle body. A throttle valve is disposed within an intake air channel defined within the throttle body. A speed or gear reduction mechanism is coupled between a motor and the throttle valve. A sensor detects the rotational position, i.e., the rotational angle, of the motor and has a movable section and a fixed sensing section. The movable section is attached to a rotary shaft of the motor, so that the movable section rotates as the rotary shaft rotates. The fixed sensing section is mounted to the throttle body and is disposed within the movable section. By detecting the rotation of the motor a computing section can accurately determine the degree of opening of the throttle valve. The sensor outputs the degree of opening of the throttle valve.Type: GrantFiled: February 6, 2006Date of Patent: May 15, 2007Assignee: Aisan Kogyo Kabushiki KaishaInventors: Tsutomu Ikeda, Koji Yoshikawa, Sunao Kitamura
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Patent number: 7210451Abstract: A throttle control device includes a motor coupled to the throttle shaft, so that the throttle valve rotates to open and close an intake air channel as the motor is driven. A detection device serves to detect the degree of opening of the throttle valve and includes a pair of magnets and a sensor. The magnets are mounted to the throttle shaft via a magnet support and are positioned to oppose each other across the rotational axis of the throttle shaft in order to produce a uniform magnetic field. The sensor is mounted to the throttle body and serves to detect a direction of the magnetic field produced by the magnets, so that the detection device outputs a signal representing the degree of opening of the throttle valve.Type: GrantFiled: May 6, 2004Date of Patent: May 1, 2007Assignee: Aisan Kogyo Kabushiki KaishaInventors: Tsutomu Ikeda, Koji Yoshikawa, Kazumasa Nakashima
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Publication number: 20060124106Abstract: A sensor for a throttle control device. The throttle control device includes a throttle body. A throttle valve is disposed within an intake air channel defined within the throttle body. A speed or gear reduction mechanism is coupled between a motor and the throttle valve. A sensor detects the rotational position, i.e., the rotational angle, of the motor and has a movable section and a fixed sensing section. The movable section is attached to a rotary shaft of the motor, so that the movable section rotates as the rotary shaft rotates. The fixed sensing section is mounted to the throttle body and is disposed within the movable section. By detecting the rotation of the motor a computing section can accurately determine the degree of opening of the throttle valve. The sensor outputs the degree of opening of the throttle valve.Type: ApplicationFiled: February 6, 2006Publication date: June 15, 2006Inventors: Tsutomu Ikeda, Koji Yoshikawa, Sunao Kitamura
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Patent number: 7055369Abstract: A gas detector having an intake to let in the gas to be detected and detecting the gas let in through the intake by a gas sensor, in which a porous film is horizontally arranged over the gas intake, in order to prevent the gas permeability of the porous film from being affected by water, oil and/or dust riding on the porous film, wherein a water-repellant and oil-repellant porous film is horizontally provided in a stretched state over the upper end of the intake, and the outside of the outer circumferential edge of the porous film is so structured as to allow liquid on the porous film to fall externally.Type: GrantFiled: November 7, 2003Date of Patent: June 6, 2006Assignee: Aisan Kogyo Kabushiki KaishaInventors: Takanori Matsunami, Takaaki Takagi, Koji Yoshikawa
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Patent number: 7042212Abstract: A rotational angle sensor detects a rotational angle of a rotary member based on a magnet field produced across the rotary member by a pair of magnets. At least one magnetic detection device is disposed within a holder and serves to detect the magnetic field and to output a signal representing the rotational angle of the rotary member. For example, the holder may be mounted to a fixed place. A printed circuit board is coupled to the holder and is electrically connected to the at least one magnetic detection device. A positioning device serves to position the at least one magnetic detection device in a predetermine position relative to the holder.Type: GrantFiled: October 4, 2004Date of Patent: May 9, 2006Assignee: Aisan Kogyo Kabushiki KaishaInventors: Koji Yoshikawa, Tsutomu Ikeda
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Patent number: 7032569Abstract: A throttle control device includes a throttle body that defines an intake air channel. A motor is coupled to a throttle shaft. As the motor is driven, the throttle valve rotates to open and close the intake air channel. A detection device serves to detect a degree of opening of the throttle valve and includes a pair of magnets and a sensor. The magnets are mounted to the throttle shaft via a magnet support and are positioned to oppose each other with respect to a rotational axis of the throttle shaft in order to produce a magnetic field. The sensor is mounted to the throttle body and serves to detect the magnetic field. The sensor comprises a sensing section and a computing section connected to each other. The sensing section may be inclined relative to the computing section in order to form a compact shape.Type: GrantFiled: May 6, 2004Date of Patent: April 25, 2006Assignee: Aisan Kogyo Kabushiki KaishaInventors: Tsutomu Ikeda, Koji Yoshikawa, Kazumasa Nakashima
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Patent number: 7011074Abstract: A sensor for a throttle control device. The throttle control device includes a throttle body. A throttle valve is disposed within an intake air channel defined within the throttle body. A speed or gear reduction mechanism is coupled between a motor and the throttle valve. A sensor detects the rotational position, i.e., the rotational angle, of the motor and has a movable section and a fixed sensing section. The movable section is attached to a rotary shaft of the motor, so that the movable section rotates as the rotary shaft rotates. The fixed sensing section is mounted to the throttle body and is disposed within the movable section. By detecting the rotation of the motor a computing section can accurately determine the degree of opening of the throttle valve. The sensor outputs the degree of opening of the throttle valve.Type: GrantFiled: May 28, 2004Date of Patent: March 14, 2006Assignee: Aisan Kogyo Kabushiki KaishaInventors: Tsutomu Ikeda, Koji Yoshikawa, Sunao Kitamura
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Publication number: 20050155575Abstract: A throttle control device includes a motor coupled to the throttle shaft, so that the throttle valve rotates to open and close an intake air channel as the motor is driven. A detection device serves to detect the degree of opening of the throttle valve and includes a pair of magnets and a sensor. The magnets are mounted to the throttle shaft via a magnet support and are positioned to oppose each other across the rotational axis of the throttle shaft in order to produce a uniform magnetic field. The sensor is mounted to the throttle body and serves to detect a direction of the magnetic field produced by the magnets, so that the detection device outputs a signal representing the degree of opening of the throttle valve.Type: ApplicationFiled: May 6, 2004Publication date: July 21, 2005Inventors: Tsutomu Ikeda, Koji Yoshikawa, Kazumasa Nakashima
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Publication number: 20050073299Abstract: A rotational angle sensor detects a rotational angle of a rotary member based on a magnet field produced across the rotary member by a pair of magnets. At least one magnetic detection device is disposed within a holder and serves to detect the magnetic field and to output a signal representing the rotational angle of the rotary member. For example, the holder may be mounted to a fixed place. A printed circuit board is coupled to the holder and is electrically connected to the at least one magnetic detection device. A positioning device serves to position the at least one magnetic detection device in a predetermine position relative to the holder.Type: ApplicationFiled: October 4, 2004Publication date: April 7, 2005Inventors: Koji Yoshikawa, Tsutomu Ikeda
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Publication number: 20040244772Abstract: A sensor for a throttle control device. The throttle control device includes a throttle body. A throttle valve is disposed within an intake air channel defined within the throttle body. A speed or gear reduction mechanism is coupled between a motor and the throttle valve. A sensor detects the rotational position, i.e., the rotational angle, of the motor and has a movable section and a fixed sensing section. The movable section is attached to a rotary shaft of the motor, so that the movable section rotates as the rotary shaft rotates. The fixed sensing section is mounted to the throttle body and is disposed within the movable section. By detecting the rotation of the motor a computing section can accurately determine the degree of opening of the throttle valve. The sensor outputs the degree of opening of the throttle valve.Type: ApplicationFiled: May 28, 2004Publication date: December 9, 2004Applicant: AISAN KOGYO KABUSHIKI KAISHAInventors: Tsutomu Ikeda, Koji Yoshikawa, Sunao Kitamura
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Publication number: 20040231644Abstract: A throttle control device includes a throttle body that defines an intake air channel. A motor is coupled to a throttle shaft. As the motor is driven, the throttle valve rotates to open and close the intake air channel. A detection device serves to detect a degree of opening of the throttle valve and includes a pair of magnets and a sensor. The magnets are mounted to the throttle shaft via a magnet support and are positioned to oppose each other with respect to a rotational axis of the throttle shaft in order to produce a magnetic field. The sensor is mounted to the throttle body and serves to detect the magnetic field. The sensor comprises a sensing section and a computing section connected to each other. The sensing section may be inclined relative to the computing section in order to form a compact shape.Type: ApplicationFiled: May 6, 2004Publication date: November 25, 2004Applicant: Aisan Kogyo Kabushiki KaishaInventors: Tsutomu Ikeda, Koji Yoshikawa, Kazumasa Nakashima
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Publication number: 20040093930Abstract: A gas detector having an intake to let in the gas to be detected and detecting the gas let in through the intake by a gas sensor, in which a porous film is horizontally arranged over the gas intake, in order to prevent the gas permeability of the porous film from being affected by water, oil and/or dust riding on the porous film, wherein a water-repellant and oil-repellant porous film is horizontally provided in a stretched state over the upper end of the intake, and the outside of the outer circumferential edge of the porous film is so structured as to allow liquid on the porous film to fall externally.Type: ApplicationFiled: November 7, 2003Publication date: May 20, 2004Inventors: Takanori Matsunami, Takaaki Takagi, Koji Yoshikawa
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Patent number: 6399340Abstract: A DNA derived from plasmid pF4, which contains a region involved in the control of autonomous replication in a bacterial cell belonging to the genus Gluconobactor, with or without a part of the polynucleotide region not essential for the autonomous replication therein, particularly, the same DNA comprising, as the region involved in the control of autonomous replication in the bacterial cell belonging to the genus Gluconobactor, a part or the entirety of the polynucleotide of nucleotide No. 2897-3969 region of Sequence Listing SEQ:ID No. 1. A plasmid vector containing this DNA, transformant transformed with this plasmid vector, and a method for producing a physiologically active substance comprising culturing this transformant.Type: GrantFiled: June 23, 2000Date of Patent: June 4, 2002Assignee: Fujisawa Pharmaceutical Co., Ltd.Inventors: Yoshimasa Saito, Yuji Noguchi, Koji Yoshikawa, Shinsuke Soeda
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Patent number: 5685065Abstract: An inner core for an ignition coil is inserted into a bobbin, around which a primary winding and a secondary winding are disposed. An outer core is inserted into a housing to form a magnetic circuit with the inner core. A magnet member, which is made of a permanent magnet material such as Sm.sub.1 Co.sub.5, is connected to the inner core. The bobbin, which is assembled with the inner core, the magnet member, the primary and secondary windings, is inserted into the housing, with the magnet member positioned between the inner core and the outer core, and then the inside of the housing is molded by a synthetic resin. Thereafter, the magnet member is magnetized to provide a predetermined magnetic force. The magnet member may be molded by Sm.sub.1 Co.sub.5 to form a plate having a thickness of 1.5 mm and more.Type: GrantFiled: July 26, 1995Date of Patent: November 11, 1997Assignee: Aisan Kogyo Kabushiki KaishaInventors: Toshiro Suzuki, Koji Yoshikawa