Patents by Inventor Toshiaki Murai
Toshiaki Murai 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: 8517561Abstract: An optical member of a strobe device includes a first incident face receiving a main beam radiated forward from a light transparent section, a pair of second incident faces receiving a complementary beam radiated forward and obliquely from the light transparent section, a pair of total reflection faces for reflecting totally and forwardly the complementary beam coming from the second incident faces, and a beam-emitting face through which the main beam and the complementary beam go outward. Each of the pair of total reflection faces is formed of a curved face, and two tangential lines to the curved faces at starting points located on a discharge tube side cross each other at an intersection point behind the center of the discharge tube and yet in front of the outer peripheral face of the glass tube.Type: GrantFiled: November 16, 2010Date of Patent: August 27, 2013Assignee: Panasonic CorporationInventor: Toshiaki Murai
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Publication number: 20120326515Abstract: An electric power receiving device according to the invention receives an electric power from a primary coil, with which a first alternating voltage is applied and through which a first alternate current flows. The device includes an electric power receiving section and a reducing-voltage generating section. The receiving section includes a secondary coil electromagnetically coupled to the primary coil and a capacitor connected to the secondary coil, and generates a second alternating voltage based upon the first alternating current. The generating section generates a reducing-voltage and applies the reducing-voltage to the receiving section, the reducing-voltage being capable of reducing a reactance voltage generated in the receiving section by a second alternating current generated in the receiving section due to the second alternating voltage, and the reducing-voltage being approximately equal to the second alternating voltage in frequency.Type: ApplicationFiled: December 15, 2011Publication date: December 27, 2012Applicant: CENTRAL JAPAN RAILWAY COMPANYInventors: Toshiaki Murai, Daisuke Shimode, Tadashi Sawada
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Publication number: 20120293060Abstract: A discharge tube includes a reflective film formed on an outer periphery of a cylindrical glass bulb by metal deposition. The reflective film is deposited in a range of 240° or more in the circumferential direction, and the range being larger in a center part than at each end in the axial direction. A stroboscopic device is equipped with this discharge tube.Type: ApplicationFiled: March 7, 2011Publication date: November 22, 2012Applicant: PANASONIC CORPORATIONInventors: Yasushi Ogino, Hisashi Dejima, Toshiaki Murai
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Publication number: 20120257372Abstract: A strobe device includes a discharge tube having a light transparent section and an optical member disposed in front of the light transparent section. The optical member includes a first incident face receiving a main beam radiated forward from the light transparent section, a pair of second incident faces receiving a complementary beam radiated forward and obliquely from the light transparent section, a pair of total reflection faces for reflecting totally and forwardly the complementary beam coming from the second incident faces, and an beam-emitting face through which the main beam and the complementary beam go outward.Type: ApplicationFiled: November 22, 2010Publication date: October 11, 2012Applicant: Panasonic CorporationInventor: Toshiaki Murai
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Publication number: 20120212949Abstract: A strobe device includes an electric discharge tube and a reflection member. The reflection member has an inner peripheral surface formed by a curved line in cross section orthogonal to a direction of the axis of the electric discharge tube so that a space therein expands toward an exit opening from an entrance opening, and two lines tangent to the inner peripheral surface at end points of the entrance opening of the reflection member intersect with each other at a point on a rear side of the axis of the electric discharge tube and on a front side of an exterior surface of a glass bulb that forms the electric discharge tube.Type: ApplicationFiled: November 9, 2010Publication date: August 23, 2012Applicant: Panasonic CorporationInventor: Toshiaki Murai
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Publication number: 20120154098Abstract: A transformer includes a primary coil, a secondary coil, and a core. The core is to be used in combination with the primary coil or the secondary coil, and includes a conductor storage part and a central part. The conductor storage part is a concave recess formed in an annular manner and configured to store a conductor of the coil therein. The central part is a region inward from the conductor when the core is used in combination with the coil. The central part has a recessed shape having an opening that opens toward a direction opposite to a direction of an opening of the concave recess. The central part has an end, at a side opposite to a side of the opening of the central part, which is generally flat so as to be contiguous with an inner opening edge of the conductor storage part.Type: ApplicationFiled: December 21, 2011Publication date: June 21, 2012Applicant: CENTRAL JAPAN RAILWAY COMPANYInventors: Daisuke SHIMODE, Toshiaki MURAI, Tadashi SAWADA
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Publication number: 20120019119Abstract: A light emitting device includes a glass bulb and a reflective film formed in a region having an angle of at least 230° on an outer peripheral surface of the glass bulb. The light emitting device can obtain the reflective film having a sufficient film thickness in a wide region on an outer peripheral surface of an electric discharge tube and has a uniform light intensity distribution.Type: ApplicationFiled: January 25, 2010Publication date: January 26, 2012Applicant: Panasonic CorporationInventors: Yasushi Ogino, Kiyoshi Tsutsumi, Toshiaki Murai
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Publication number: 20110319616Abstract: An object is to provide a thiazole derivative produced from easily available raw materials by a simplified production process. Provided are a process for producing a novel thiazole derivative represented by the general formula (I), which is characterized by adding a strong base to a thioamide represented by the general formula (II) and reacting the mixture with a thioformamide represented by the general formula (III), and a novel thiazole derivative.Type: ApplicationFiled: March 8, 2010Publication date: December 29, 2011Applicant: GIFU UNIVERSITYInventor: Toshiaki Murai
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Patent number: 7060855Abstract: An asymmetric phosphinoselenoic chloride of the present invention is represented by the general formula: wherein Ar represents an aryl group and R represents an aryl group, an alkyl group having 3 or more carbon atoms, or an alkoxy group. The asymmetric phosphinoselenoic chloride is a novel compound and is useful as synthetic raw materials, agricultural chemicals, pharmaceutical products and the like.Type: GrantFiled: February 24, 2004Date of Patent: June 13, 2006Assignee: Gifu UniversityInventors: Toshiaki Murai, Tsutomu Kimura
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Patent number: 6958419Abstract: An alkynyl S,N-acetal derivative of the present invention is represented by the following structural formula: In the structural formula, R1 represents a hydrogen atom, an alkyl group, an aryl group, an alkenyl group, a silyl group, or an alkynyl group; each of R2 and R3 represents an alkyl group or an allyl group; and R4 represents an alkyl group. The alkynyl S,N-acetal derivative, which is a novel compound, is useful as a raw material of propargylamine.Type: GrantFiled: December 11, 2003Date of Patent: October 25, 2005Assignee: Gifu UniversityInventors: Toshiaki Murai, Yuichiro Mutoh
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Publication number: 20040260124Abstract: The present invention relates to a method for easily producing a tertiary amine with high yield. A tertiary amine represented by general formula (1) is produced by adding a metal-containing reagent represented by general formula (6) into a reaction system consisting of thioamide represented by general formula (4), a methylating agent represented by general formula (5) and a solvent, and then adding thereto a Grignard reagent represented by general formula (7).Type: ApplicationFiled: January 20, 2004Publication date: December 23, 2004Inventors: Toshiaki Murai, Masahiro Murakami, Yuichiro Mutoh, Yukiyasu Ohta
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Publication number: 20040167356Abstract: An asymmetric phosphinoselenoic chloride of the present invention is represented by the general formula: 1Type: ApplicationFiled: February 24, 2004Publication date: August 26, 2004Applicant: Gifu UniversityInventors: Toshiaki Murai, Tsutomu Kimura
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Publication number: 20040167346Abstract: An alkynyl S,N-acetal derivative of the present invention is represented by the following structural formula: 1Type: ApplicationFiled: December 11, 2003Publication date: August 26, 2004Applicant: Gifu UniversityInventors: Toshiaki Murai, Yuichiro Mutoh
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Publication number: 20040004179Abstract: A temperature compensating circuit includes a first circuit network 1 between an inverting input terminal of an operational amplifier 13 and an output terminal of the operational amplifier 13, and a second circuit network 2 between the inverting input terminal of the operational amplifier 13 and a reference potential. At least one of the first circuit network and the second circuit network is made of an arrangement containing a plurality of series-connected thermistor/resistor pairs in which the thermistors are connected parallel to the resistors, and the temperature compensating circuit compensates a temperature-dependent signal which is inputted into a positive phase input terminal of the operational amplifier 13, and outputs the temperature-compensated signal.Type: ApplicationFiled: June 24, 2003Publication date: January 8, 2004Inventors: Akihiro Hayami, Tadaaki Fujii, Tomonao Kikuchi, Tadashi Hatano, Yasuhiro Yamada, Takayuki Nakao, Tomoaki Shimotsu, Toshiaki Murai, Tohru Oyama, Hidehiro Ikeuchi, Masayuki Miyoshi
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Patent number: 6603110Abstract: A temperature compensating circuit includes a first circuit network 1 between an inverting input terminal of an operational amplifier 13 and an output terminal of the operational amplifier 13, and a second circuit network 2 between the inverting input terminal of the operational amplifier 13 and a reference potential. At least one of the first circuit network and the second circuit network is made of an arrangement containing a plurality of series-connected thermistor/resistor pairs in which the thermistors are connected parallel to the resistors, and the temperature compensating circuit compensates a temperature-dependent signal which is inputted into a positive phase input terminal of the operational amplifier 13, and outputs the temperature-compensated signal.Type: GrantFiled: June 27, 2002Date of Patent: August 5, 2003Assignees: Hitachi, Ltd., Hitachi Communication System, Inc., Hitachi Video and Information System, Inc.Inventors: Akihiro Hayami, Tadaaki Fujii, Tomonao Kikuchi, Tadashi Hatano, Yasuhiro Yamada, Takayuki Nakao, Tomoaki Shimotsu, Toshiaki Murai, Tohru Oyama, Hidehiro Ikeuchi, Masayuki Miyoshi
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Publication number: 20030029991Abstract: A temperature compensating circuit includes a first circuit network 1 between an inverting input terminal of an operational amplifier 13 and an output terminal of the operational amplifier 13, and a second circuit network 2 between the inverting input terminal of the operational amplifier 13 and a reference potential. At least one of the first circuit network and the second circuit network is made of an arrangement containing a plurality of series-connected thermistor/resistor pairs in which the thermistors are connected parallel to the resistors, and the temperature compensating circuit compensates a temperature-dependent signal which is inputted into a positive phase input terminal of the operational amplifier 13, and outputs the temperature-compensated signal.Type: ApplicationFiled: June 27, 2002Publication date: February 13, 2003Inventors: Akihiro Hayami, Tadaaki Fujii, Tomonao Kikuchi, Tadashi Hatano, Yasuhiro Yamada, Takayuki Nakao, Tomoaki Shimotsu, Toshiaki Murai, Tohru Oyama, Hidehiro Ikeuchi, Masayuki Miyoshi
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Patent number: 6426495Abstract: A temperature compensating circuit includes a first circuit network 1 between an inverting input terminal of an operational amplifier 13 and an output terminal of the operational amplifier 13, and a second circuit network 2 between the inverting input terminal of the operational amplifier 13 and a reference potential. At least one of the first circuit network and the second circuit network is made of an arrangement containing a plurality of series-connected thermistor/resistor pairs in which the thermistors are connected parallel to the resistors, and the temperature compensating circuit compensates a temperature-dependent signal which is inputted into a positive phase input terminal of the operational amplifier 13, and outputs the temperature-compensated signal.Type: GrantFiled: June 26, 2000Date of Patent: July 30, 2002Assignees: Hitachi, Ltd., Hitachi Communication System, Inc., Hitachi Video and Information System, Inc.Inventors: Akihiro Hayami, Tadaaki Fujii, Tomonao Kikuchi, Tadashi Hatano, Yasuhiro Yamada, Takayuki Nakao, Tomoaki Shimotsu, Toshiaki Murai, Tohru Oyama, Hidehiro Ikeuchi, Masayuki Miyoshi
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Patent number: 5812946Abstract: A cordless telephone system includes one base station and at least one personal station. Each station includes an abbreviated dial memory for storing abbreviated dial data, a control unit for controlling the telecommunication device, an abbreviated dial transfer unit for selectively transmitting in radio the abbreviated dial data stored in the abbreviated dial memory to another telecommunication device, and a unit for receiving abbreviated dial data transmitted from another telecommunication device and writing the abbreviated dial data into the abbreviated dial memory. By using an empty channel of communication in progress or a control channel which can be freely used by a user, abbreviated dial data are transferred between stations.Type: GrantFiled: August 15, 1995Date of Patent: September 22, 1998Assignee: Hitachi, Ltd.Inventors: Sumie Nakabayashi, Toshiaki Murai
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Patent number: 5657697Abstract: Disclosed is a coil of a magnetic levitation apparatus for supporting a moving body without contact by utilizing electromagnetic force produced by electromagnetic induction. Upper and lower stages of a two-stage induction coil arranged vertically with respect to the direction of travel of the moving body are connected so as to have mutually opposing orientations and are arranged in an asymmetrical figure-eight structure in which the heights or the numbers of turns of the upper and lower stages of the induction coil differ from each other. A guidance force large enough to offset lateral displacement of the moving body is produced, generation of a moment in the rolling direction of the moving body is reduced and non-contact support of the moving body in a region of lower velocities is made possible.Type: GrantFiled: February 1, 1996Date of Patent: August 19, 1997Assignee: Railway Technical Research InstituteInventor: Toshiaki Murai
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Patent number: 5587463Abstract: The present invention involves a novel tripyrrole dimethine-derived "expanded porphyrin" (texaphyrin), the synthesis of such compounds, their analogs or derivatives and their uses. These expanded porphyrin-like macrocycles are efficient chelators of divalent and trivalent metal ions. Metal complexes of these compounds are active as photosensitizers for the generation of singlet oxygen and thus potentially for inactivation or destruction of human immunodeficiency virus (HIV-1), mononuclear or other cells infected with such virus and tumor cells as well. A variety of texaphyrin derivatives have been produced and many more are readily obtainable. Various metal (e.g., transition, main group, and lanthanide) complexes with the texaphyrin and texaphyrin derivatives of the present invention have unusual water solubility and stability which render them particularly useful. These metallotexaphyrin complexes have optical properties making them unique as compared to existing porphyrin-like or other macrocycles.Type: GrantFiled: March 8, 1994Date of Patent: December 24, 1996Assignee: Board of Regents, The University of Texas SystemInventors: Jonathan L. Sessler, Gregory W. Hemmi, Toshiaki Murai