Patents by Inventor Toshihisa Ishihara
Toshihisa Ishihara 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: 20230007767Abstract: A resin sheet is provided having low dielectric properties, and a circuit board material using such a sheet. The resin sheet includes a resin layer containing a cyclic polyolefin resin copolymer having a crystal melting peak temperature of less than 100° C., the resin sheet having a dielectric loss tangent at 12 GHz of less than 0.005.Type: ApplicationFiled: August 26, 2022Publication date: January 5, 2023Applicant: MCPP Innovation LLCInventors: Yuuko Hayakawa, Toshihisa Ishihara, Jiro Sano
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Publication number: 20220121134Abstract: The present invention relates to a liquid developer containing a carrier liquid and a developer component, in which the developer component contains an ethylene-(meth)acrylic acid copolymer A and a block copolymer B? containing a hard segment and a soft segment, and the hard segment is a vinyl alicyclic hydrocarbon polymer, an image forming method using the liquid developer, a liquid developer cartridge having the liquid developer and an image forming apparatus having the liquid developer.Type: ApplicationFiled: January 3, 2022Publication date: April 21, 2022Applicant: Mitsubishi Chemical CorporationInventors: Akiteru Fujii, Yuqing Xu, Yuuta Kumano, Toshihisa Ishihara
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Patent number: 11268214Abstract: The present invention provides a filament for material extrusion 3D printer molding, which affords a molded article having soft texture and excellent heat resistance and among others, exhibits good moldability in molding by a material extrusion 3D printer. The present invention relates to a filament for material extrusion 3D printer molding, including a thermoplastic elastomer which contains at least a specific block copolymer and in which the ratio between storage modulus and loss modulus measured at 200° C. and 100 Hz by dynamic viscoelasticity measurement is in a specific range.Type: GrantFiled: October 20, 2017Date of Patent: March 8, 2022Assignees: MCPP Innovation LLC, Mitsubishi Chemical CorporationInventors: Jiro Sano, Toshihisa Ishihara, Shigeyuki Furomoto
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Publication number: 20210015705Abstract: A multilayer body includes a base material layer containing a polypropylene resin and a heat seal layer containing a cyclic polyolefin. The cyclic polyolefin is a hydrogenated block copolymer having a hydrogenated aromatic vinyl polymer block unit which is a hydrogenated polymer block composed of aromatic vinyl monomer units and a hydrogenated conjugated diene polymer block unit which is a hydrogenated polymer block composed of conjugated diene monomer units, and the hydrogenated block copolymer has at least two hydrogenated aromatic vinyl polymer block units and at least one hydrogenated conjugated diene polymer block unit.Type: ApplicationFiled: September 29, 2020Publication date: January 21, 2021Applicant: MCPP Innovation LLCInventors: Naoya Watanabe, Toshihisa Ishihara
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Patent number: 10480098Abstract: The present invention provides a filament for three-dimensional printer molding which includes a resin that can be molded by a three-dimensional printer in a wide temperature range and from which a crystalline soft resin molded article excellent in terms of flexible texture etc. can be produced; and a method for producing a crystalline soft resin molded article, wherein the filament for three-dimensional printer molding includes a polyester-based thermoplastic elastomer wherein a durometer D hardness (JIS K6253-1993) is 40 or less and thermal properties measured with a differential scanning calorimeter satisfy the following conditions: a melting peak temperature (A) is 120 to 220° C. by heating at 10° C./min; a crystallization peak temperature (B) is 60 to 160° C. by cooling at 10° C./min; and the crystallization peak observed during cooling at 10° C./min has a half-value temperature width of 10 to 30° C.Type: GrantFiled: March 3, 2017Date of Patent: November 19, 2019Assignees: MCPP Innovation LLC, Mitsubishi Chemical CorporationInventors: Toshihisa Ishihara, Shigeyuki Furomoto
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Publication number: 20180038015Abstract: The present invention provides a filament for material extrusion 3D printer molding, which affords a molded article having soft texture and excellent heat resistance and among others, exhibits good moldability in molding by a material extrusion 3D printer. The present invention relates to a filament for material extrusion 3D printer molding, including a thermoplastic elastomer which contains at least a specific block copolymer and in which the ratio between storage modulus and loss modulus measured at 200° C. and 100 Hz by dynamic viscoelasticity measurement is in a specific range.Type: ApplicationFiled: October 20, 2017Publication date: February 8, 2018Applicants: MCPP Innovation LLC, MITSUBISHI CHEMICAL MEDIA CO., LTD.Inventors: Jiro SANO, Toshihisa ISHIHARA, Shigeyuki FUROMOTO
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Publication number: 20170173869Abstract: The present invention provides a filament for three-dimensional printer molding which includes a resin that can be molded by a three-dimensional printer in a wide temperature range and from which a crystalline soft resin molded article excellent in terms of flexible texture etc. can be produced; and a method for producing a crystalline soft resin molded article, wherein the filament for three-dimensional printer molding includes a polyester-based thermoplastic elastomer wherein a durometer D hardness (JIS K6253-1993) is 40 or less and thermal properties measured with a differential scanning calorimeter satisfy the following conditions: a melting peak temperature (A) is 120 to 220° C. by heating at 10° C./min; a crystallization peak temperature (B) is 60 to 160° C. by cooling at 10° C./min; and the crystallization peak observed during cooling at 10° C./min has a half-value temperature width of 10 to 30° C.Type: ApplicationFiled: March 3, 2017Publication date: June 22, 2017Applicants: MCPP Innovation LLC, MITSUBISHI KAGAKU MEDIA CO., LTD.Inventors: Toshihisa ISHIHARA, Shigeyuki Furomoto
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Patent number: 9127112Abstract: The present invention provides a hydrogenated block copolymer which has an excellent balance in a transparency, optical property, flexibility, mechanical property, moldability, heat resistance, gas barrier property, low moisture absorbency and non-adsorptive property of chemical. Also, the present invention has an object to provide a resin composition containing the hydrogenated block copolymer as a resin component, and a film and container containing the composition. The present invention relates to a hydrogenated block copolymer containing a Block A of a hydrogenated vinyl aromatic polymer and a Block B of a polymer containing isobutylene.Type: GrantFiled: March 31, 2014Date of Patent: September 8, 2015Assignee: MITSUBISHI CHEMICAL CORPORATIONInventors: Naoyuki Kosaka, Toshihisa Ishihara, Kenjiro Takayanagi
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Publication number: 20140213728Abstract: The present invention provides a hydrogenated block copolymer which has an excellent balance in a transparency, optical property, flexibility, mechanical property, moldability, heat resistance, gas barrier property, low moisture absorbency and non-adsorptive property of chemical. Also, the present invention has an object to provide a resin composition containing the hydrogenated block copolymer as a resin component, and a film and container containing the composition. The present invention relates to a hydrogenated block copolymer containing a Block A of a hydrogenated vinyl aromatic polymer and a Block B of a polymer containing isobutylene.Type: ApplicationFiled: March 31, 2014Publication date: July 31, 2014Applicant: MITSUBISHI CHEMICAL CORPORATIONInventors: Naoyuki KOSAKA, Toshihisa Ishihara, Kenjiro Takayanagi
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Patent number: 6646435Abstract: An angular position detecting apparatus using a magnetic detecting element, which can voluntary widely set an output change characteristic of the magnetic detecting element with respect to angular positions. An angular position detecting apparatus includes a cylindrical yoke, and a magnet fixed to a predetermined position in the cylindrical yoke. A magnetic detecting element, which is fixed to a rotor, is provided in a magnetic field generated between the magnet and the cylindrical yoke, so that a position of the magnetic detecting element is shifted from a rotation axis P of the rotor by a predetermined distance r. A ferromagnetic thin film magnetic resistance element applies a magnetic field which has intensity so that outputs from the elements are saturated. As a result, the magnetic detecting element generates outputs depending only on a magnetic flux detection angle &thgr;s independent of an influence of changes of magnetic field intensity due to temperature changes.Type: GrantFiled: July 12, 2000Date of Patent: November 11, 2003Assignees: Nippon Soken, Inc., Denso CorporationInventors: Tsutomu Nakamura, Toshihisa Ishihara, Takashi Hamaoka
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Patent number: 6634332Abstract: An engine start-stop control system for an automotive vehicle includes a first step for supplying current to a solenoid of a magnet switch of a starter at 100% duty ratio until a first predetermined time passes, a second step for supplying current to the solenoid at a duty ratio that is less than 100% after the first predetermined period passes until a second predetermined period passes, and a third step for supplying current to the solenoid at 100% duty ratio after the second predetermined period passes until a third predetermined period passes. Therefore, a pinion of the starter reaches a ring gear of the engine in a short time and engages the ring gear with a moderate impacting shock, thereby preventing the pinion and the ring gear from being damaged.Type: GrantFiled: August 10, 2001Date of Patent: October 21, 2003Assignee: Denso CorporationInventors: Mikio Saito, Masahiko Osada, Toshihisa Ishihara
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Patent number: 6501265Abstract: An angular position detection device has a rotor that comprises two magnets and a primary yoke, and a stator that comprises a pair of auxiliary yokes and a magnetism detection element. The rotor is fixed to a rotary shaft of an object to be detected. The primary yoke forms a magnetic circuit in a ring, and the magnets are configured so that the intensity distribution of the magnetic field is asymmetric with respect to the center of rotation of the rotor. The magnetism detection element is placed in a gap between the auxiliary yokes. This stator is disposed in the inside of the rotor so that an air gap between the rotor and the stator varies gradually in the circumferential direction. Thus, the magnetism detection element is enabled to produce a linear output over a range wider than 180°.Type: GrantFiled: March 20, 2001Date of Patent: December 31, 2002Assignee: Denso CorporationInventors: Tsutomu Nakamura, Toshihisa Ishihara, Kenji Takeda, Yoshiyuki Kono
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Publication number: 20020017260Abstract: An engine start-stop control system for an automotive vehicle includes a first step for supplying current to a solenoid of a magnet switch of a starter at 100% duty ratio until a first predetermined time passes, a second step for supplying current to the solenoid at a duty ratio that is less than 100% after the first predetermined period passes until a second predetermined period passes, and a third step for supplying current to the solenoid at 100% duty ratio after the second predetermined period passes until a third predetermined period passes. Therefore, a pinion of the starter reaches a ring gear of the engine in a short time and engages the ring gear with a moderate impacting shock, thereby preventing the pinion and the ring gear from being damaged.Type: ApplicationFiled: August 10, 2001Publication date: February 14, 2002Applicant: DENSO CORPORATIONInventors: Mikio Saito, Masahiko Osada, Toshihisa Ishihara
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Publication number: 20010026153Abstract: An angular position detection device has a rotor that comprises two magnets and a primary yoke, and a stator that comprises a pair of auxiliary yokes and a magnetism detection element. The rotor is fixed to a rotary shaft of an object to be detected. The primary yoke forms a magnetic circuit in a ring, and the magnets are configured so that the intensity distribution of the magnetic field is asymmetric with respect to the center of rotation of the rotor. The magnetism detection element is placed in a gap between the auxiliary yokes. This stator is disposed in the inside of the rotor so that an air gap between the rotor and the stator varies gradually in the circumferential direction. Thus, the magnetism detection element is enabled to produce a linear output over a range wider than 180°.Type: ApplicationFiled: March 20, 2001Publication date: October 4, 2001Inventors: Tsutomu Nakamura, Toshihisa Ishihara, Kenji Takeda, Yoshiyuki Kono
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Patent number: 6032110Abstract: Markers each comprising an electromagnetic coil are installed on the surface of a road at a lateral center line of a running lane of the road at predetermined intervals. Provided for each of the markers, a driving signal generating circuit drives the associated marker so that the marker transmits an alternating current magnetic field. Alternating current magnetic field receiving devices each comprising an electromagnetic coil are installed on the front bumper of a vehicle at positions symmetrical with respect to the lateral center line of the vehicle. While the vehicle is running, the alternating current magnetic field receiving devices sequentially receive the alternating current magnetic fields generated by the markers one field after another. A microcomputer receives detection voltages generated by the alternating current magnetic field receiving devices through detection circuits and determines the lateral position of the vehicle from the detection voltages.Type: GrantFiled: July 14, 1998Date of Patent: February 29, 2000Assignee: Nippon Soken, Inc.Inventors: Toshihisa Ishihara, Takahide Kitahara, Shigeto Tsuge
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Patent number: 5653515Abstract: An improved control system for antilock brake control for an automotive vehicle which includes an excessive brake pedal-depressed force alarm unit. The control system determines a slip ratio and a slip ratio variation of a wheel to derive slippage conditions of the wheel, and provides an alarm to a driver when a brake pedal-depressed force exerted on a brake pedal is too great, causing wheel slippage to occur, especially during traveling on a slippery road surface such as a snowy road.Type: GrantFiled: September 5, 1995Date of Patent: August 5, 1997Assignee: Nippon Soken, Inc.Inventors: Kenji Takeda, Mitsuo Inagaki, Toshihisa Ishihara, Kazuyuki Yamashita, Shuichi Kohno
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Patent number: 5253525Abstract: An angular velocity sensor having a casing in which a disk shaped permanent magnet member is arranged so that it floats on a magnetic fluid filled in the casing. A Hall motor is provided for rotating the permanent magnet about its axis in the casing, and a detection unit is provided detecting an inclination of the magnet member about an axis which is transverse to the axis about which the magnet member rotates, which inclination is generated when the sensor is subjected to an angular movement. An angular velocity of such an angular movement is calculated from the detected degree of inclination of the magnet member.Type: GrantFiled: March 1, 1991Date of Patent: October 19, 1993Assignees: Nippon Soken, Inc, Toyota Jidosha Kabushiki KaishaInventors: Shinji Fukui, Takaharu Idogaki, Toshihisa Ishihara, Hideki Kusunoki, Hideo Inoue
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Patent number: 4984463Abstract: An acceleration sensor for detecting an acceleration in a plane, and having a housing, and a disk magnet arranged in a magnetic fludi stored in the housing. The movement of disk magnet is limited, i.e., a translational movement or rotational movement thereof can occur only in the plane, by projections formed in the housing, between which projections portions of the magnetic fluid having an increased density are formed adjacent to the poles of the disk magnet so that only a translational movement is allowed, or by small circumferential walls between the housing and the disk magnet and radial projections formed between end walls of the housing and disk magnet so that only a rotational movement is allowed. A Hall element issues a signal corresponding to a position of the disk magnet, to thereby determine the acceleration rate.Type: GrantFiled: September 26, 1989Date of Patent: January 15, 1991Assignees: Nippon Soken, Inc., Toyota Jidosha Kabushiki KaishaInventors: Takaharu Idogaki, Ikuo Hayashi, Toshihisa Ishihara, Hideo Inoue, Tatsuo Sugitani
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Patent number: 4922753Abstract: An acceleration sensor including a magnetic fluid, a permanent magnet emplaced movably in the magnetic fluid, a nonmagnetic case, in which case the magnetic fluid and the permanent magnet are sealed and from which case air is substantially excluded, the shape of internal receptacle of the case dominating the shape of the magnetic fluid, whereby the path of the magnetic flux generated by the permanent magnet is restricted and the permanent magnet in the magnetic fluid is given an automatic positioning function, a unit for detecting the position of the permanent magnet, and a processing circuit for processing signals from the detection unit.Type: GrantFiled: May 27, 1988Date of Patent: May 8, 1990Assignees: Nippon Soken, Inc., Toyoto Jidosha Kabushiki KaishaInventors: Takaharu Idogaki, Ikuo Hayashi, Toshihisa Ishihara, Tatsuo Sugitani, Hideo Inoue