Patents by Inventor Mikio Matsuda
Mikio Matsuda 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: 11936251Abstract: Assembly workability of an electric compressor to which an inverter circuit section and a filter circuit section are attached is improved. The inverter circuit section (3) includes an inverter control board (17), a sleeve assembly (18), and a power module (14). The inverter control board, the sleeve assembly, and the power module are integrated. The filter circuit section (4) includes a filter circuit board (66) and a support member (67). The filter circuit board (66) and the support member (67) are integrated. The inverter circuit section and the filter circuit section are structured to be capable of being stored each individually within an inverter storing section (8) from the same direction and detachably attached to the housing (2).Type: GrantFiled: January 21, 2019Date of Patent: March 19, 2024Assignee: SANDEN AUTOMOTIVE COMPONENTS CORPORATIONInventors: Mikio Kobayashi, Masataka Matsuda, Toru Yoshihara
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Patent number: 10731770Abstract: An actuator includes a rod, an electric motor to generate a rotational driving force on supply of electricity, an output shaft to output the rotational driving force of the electric motor to the rod, a feed screw mechanism, and a rotation prevention mechanism. The feed screw mechanism includes a female screw portion formed on one of the output shaft and the rod, and a male screw portion formed on the other to mesh with the female screw portion. The rotation prevention mechanism is configured to regulate rotation of the rod caused by the rotational driving force of the electric motor.Type: GrantFiled: July 7, 2016Date of Patent: August 4, 2020Assignees: DENSO CORPORATION, SOKEN, INC.Inventors: Yasuhiro Kawase, Yukikatsu Ozaki, Mikio Matsuda, Tetsuya Itou, Sadahisa Onimaru, Hiroki Ishii
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Publication number: 20190203714Abstract: A rotary cylinder type compressor includes: a cylinder that is rotatably placed in an inside of a housing; a rotor that is placed in an inside of the cylinder and is rotatable about an eccentric axis that is eccentric to a rotational central axis of the cylinder; and a partition member that partitions a working chamber formed between an outer peripheral surface of the rotor and an inner peripheral surface of the cylinder into a suction space and a compression space. When a pressure of fluid in the compression space is equal to or larger than a reference pressure, a contact stress, which is exerted at an adjoining portion between the outer peripheral surface of the rotor and the inner peripheral surface of the cylinder, is increased in comparison to a case where the pressure of the fluid in the compression space is smaller than the reference pressure.Type: ApplicationFiled: March 10, 2017Publication date: July 4, 2019Inventors: Yuichi OHNO, Mikio MATSUDA, Hiroshi OGAWA, Yoshinori MURASE
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Publication number: 20180202569Abstract: An actuator includes a rod, an electric motor to generate a rotational driving force on supply of electricity, an output shaft to output the rotational driving force of the electric motor to the rod, a feed screw mechanism, and a rotation prevention mechanism. The feed screw mechanism includes a female screw portion formed on one of the output shaft and the rod, and a male screw portion formed on the other to mesh with the female screw portion. The rotation prevention mechanism is configured to regulate rotation of the rod caused by the rotational driving force of the electric motor.Type: ApplicationFiled: July 7, 2016Publication date: July 19, 2018Applicants: Nippon Soken, Inc., Denso CorporationInventors: Yasuhiro KAWASE, Yukikatsu OZAKI, Mikio MATSUDA, Tetsuya ITOU, Sadahisa ONIMARU, Hiroki ISHII
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Publication number: 20110002797Abstract: A rotary machine sucking in working fluid through a suction port into a housing and discharging it through the discharge port, provided with a motor stator provided at an inside circumferential surface of the housing and having inside surfaces which include a step surface designed to enclose a housing interior cavity by the inside surfaces; first and second motor rotors arranged at the insides of the inside surfaces separated by the step surface of the motor stator; and first and second rotational units, the first and second rotational units coupled to the first and second motor rotors respectively, and the first and second rotational units supported at the housing adjoiningly and eccentrically to each other.Type: ApplicationFiled: April 27, 2010Publication date: January 6, 2011Applicant: NIPPON SOKEN, INC.Inventors: Yasuhiro Takeuchi, Mikio Matsuda, Mitsuo Inagaki
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Patent number: 7573203Abstract: A mercury-free high-pressure discharge lamp includes a light-transmissive airtight envelope enclosing therein a discharge space, and a pair of electrodes sealed inside the light-transmissive airtight envelope and facing the discharge space, and the primary halide includes at least thulium bromide having an innumerable emission spectrum primarily around the peak of a luminosity curve and alkali metal halide, and the accessory halide contains one or more metal halides mostly selected from a group of Magnesium (Mg), Iron (Fe), Cobalt (Co), Chromium (Cr), Zinc (Zn), Nickel (Ni), Manganese (Mn), Aluminum (Al), Antimony (Sb), Bismuth (Bi), Beryllium (Be), Rhenium (Re), Gallium (Ga), Titanium (Ti), Zirconium (Zr), and Hafnium (Hf) which primarily contribute to fix lamp voltage.Type: GrantFiled: November 7, 2006Date of Patent: August 11, 2009Assignee: Toshiba Lighting & Technology CorporationInventors: Takahito Kashiwagi, Masazumi Ishida, Mikio Matsuda, Kozo Uemura
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Patent number: 7553134Abstract: A switch valve structure of a fluid machine (10) having a pump mode to operate as a compressor and a motor mode to operate as an expander is disclosed. In pump mode, a communication path (106) between a working chamber (V) and a high-pressure chamber (104) is closed, while in motor mode, the communication path (106) is opened by a valve unit (107d). The valve unit (107d) is includes a spool portion (117) sliding in the direction substantially perpendicular to the surface to which the communication path (106) opens and a valve portion (127) arranged at the forward end of the spool portion (127) and sliding with the spool portion (117) thereby to open/close the communication path (106). A swivel mechanism (137) is interposed between the spool portion (117) and the valve portion (127) to tilt the sliding axis of the valve portion (127) at an arbitrary angle with respect to the sliding axis of the spool portion (117).Type: GrantFiled: March 29, 2005Date of Patent: June 30, 2009Assignees: DENSO CORPORATION, Nippon Soken, Inc.Inventors: Keiichi Uno, Shigeki Iwanami, Mikio Matsuda, Hiroshi Ogawa
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Patent number: 7388332Abstract: A metal vapor discharge lamp whose near-infrared radiation is stronger than a conventional high-pressure discharge lamp, a projector utilizing this discharge lamp, and a metal vapor discharge lamp lighting device are disclosed. The metal vapor discharge lamp comprises a refractory light-transmitting hermetic vessel, a pair of electrode fixed to the hermetic vessel, and a discharge medium sealed in the hermetic vessel and containing a halide and a rare gas. Most of the light irradiated when the discharge lamp is in the ON state has near-infrared wavelengths (750–1100 nm).Type: GrantFiled: October 8, 2003Date of Patent: June 17, 2008Assignees: Harison Toshiba Lighting Corp., Toshiba Lighting & Technology CorporationInventors: Toshihiko Ishigami, Kozo Uemura, Mikio Matsuda, Toshio Hiruta, Hiroyoshi Takanishi, Hideo Inoue
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Patent number: 7352132Abstract: A metal halide lamp includes a refractory, light-transmitting hermetic vessel, a pair of electrodes sealed in thehermetic vessel, a discharge medium including a halide and a rare gas, and metal storing means storing at least one selected from the group consisting of potassium (K), rubidium (Rb) and cesium (Cs), the metal storing means being heated during lighting and gradually discharging at least one metal in the hermetic vessel.Type: GrantFiled: November 30, 2004Date of Patent: April 1, 2008Assignee: Harison Toshiba Lighting Corp.Inventors: Toshihiko Ishigami, Mikio Matsuda, Toshio Hiruta
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Publication number: 20080001543Abstract: This invention provides a metal halide lamp and a lighting equipment that, despite the fact that mercury is not filled, can provide electrical characteristics comparable with a mercury-contained metal halide lamp and can provide luminescent characteristics favorably comparable with the mercury-contained metal halide lamp. A metal halide lamp MHL includes a hermetically sealed vessel 1, a pair of electrodes 2, and a discharge medium filled in the hermetically sealed vessel. The discharge medium contains a first halide, a second halide, and a rare gas. The first halide is composed mainly of a halide of a luminescent metal and contains a halide of thulium (Tm) filled at the highest filling ratio in all of metal halides filled in the hermetically sealed vessel, and the content of an alkali metal halide in the first halide is less than 10% by mass at the highest.Type: ApplicationFiled: October 28, 2005Publication date: January 3, 2008Inventors: Takahito Kashiwagi, Masazumi Ishida, Mikio Matsuda, Kozo Uemura
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Patent number: 7242144Abstract: The present invention provides a high-pressure discharge lamp that uses substantially no mercury and reduces discharge flicker. The high-pressure discharge lamp is kept on with a lamp power of 50 W or lower in a stable state, and the temperature T (° C.) of the electrode at a point at a distance of 0.3 mm from the tip end to the base end in the stable state and the amount A (mol/cc) of free iodine produced when the lamp is turned off after 100 hours of on-time satisfy the formula (1):T2/A>1011.Type: GrantFiled: September 26, 2002Date of Patent: July 10, 2007Assignees: Harison Toshiba Lighting Corp., Toshiba Lighting & Technology CorporationInventors: Hiroyuki Kato, Hiromichi Kawashima, Kozo Uemura, Toshihiko Ishigami, Mikio Matsuda, Toshio Hiruta
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Publication number: 20070138964Abstract: A mercury-free high-pressure discharge lamp includes a light-transmissive airtight envelope enclosing therein a discharge space, and a pair of electrodes sealed inside the light-transmissive airtight envelope and facing the discharge space, and the primary halide includes at least thulium bromide having an innumerable emission spectrum primarily around the peak of a luminosity curve and alkali metal halide, and the accessory halide contains one or more metal halides mostly selected from a group of Magnesium (Mg), Iron (Fe), Cobalt (Co), Chromium (Cr), Zinc (Zn), Nickel (Ni), Manganese (Mn), Aluminum (Al), Antimony (Sb), Bismuth (Bi), Beryllium (Be), Rhenium (Re), Gallium (Ga), Titanium (Ti), Zirconium (Zr), and Hafnium (Hf) which primarily contribute to fix lamp voltage.Type: ApplicationFiled: November 7, 2006Publication date: June 21, 2007Applicant: TOSHIBA LIGHTING & TECHNOLOGY CORPORATIONInventors: Takahito Kashiwagi, Masazumi Ishida, Mikio Matsuda, Kozo Uemura
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Publication number: 20070069655Abstract: A metal halide discharge lamp with which essentially permits disusing mercury is provided. The metal halide discharge lamp comprises a refractory and transparent hermetic vessel, a pair of electrodes fixed to the hermetic vessel, and a discharge medium sealed in the hermetic vessel and containing a first halide, a second halide, and a rare gas. The first halide is a halide of metal which achieves a desired light emission. The second halide has a relatively high vapor pressure, being at least one halide of metal which is unlikely to emit a visible light compared with the metal of the first halide and acts as a buffer gas.Type: ApplicationFiled: November 22, 2006Publication date: March 29, 2007Applicant: Harison Toshiba Lighting CorporationInventors: Toshihiko Ishigami, Kiyoshi Saita, Mikio Matsuda, Toshio Hiruta
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Publication number: 20070017771Abstract: A rotating machine having an electro-magnetic clutch includes: a leakage magnetic flux path formed between the electro-magnetic clutch and a housing via the rotary shaft when a portion of the magnetic flux generated by the electro-magnetic clutch leaks out; a Hall-effect IC, which is arranged in the leakage magnetic flux path, for detecting an amount of the leakage magnetic flux passing in the Hall-effect IC; a variable leakage magnetic flux portion which composes a portion of the leakage magnetic flux path and is rotated by the rotary shaft; and an ECU for detecting a state of rotation of the rotating machine from a change in the leakage magnetic flux detected by the Hall-effect IC.Type: ApplicationFiled: July 18, 2006Publication date: January 25, 2007Applicants: NIPPON SOKEN, INC., DENSO CORPORATIONInventors: Hiroki Ishii, Mikio Matsuda, Hiroshi Kishita, Yasuo Tabuchi, Motohiko Ueda
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Publication number: 20060255741Abstract: A metal halide discharge lamp with which essentially permits disusing mercury is provided. The metal halide discharge lamp comprises a refractory and transparent hermetic vessel, a pair of electrodes fixed to the hermetic vessel, and a discharge medium sealed in the hermetic vessel and containing a first halide, a second halide, and a rare gas. The first halide is a halide of metal which achieves a desired light emission. The second halide has a relatively high vapor pressure, being at least one halide of metal which is unlikely to emit a visible light compared with the metal of the first halide and acts as a buffer gas.Type: ApplicationFiled: April 7, 2006Publication date: November 16, 2006Applicant: Harison Toshiba Lighting CorporationInventors: Toshihiko Ishigami, Kiyoshi Saita, Mikio Matsuda, Toshio Hiruta
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Patent number: 7121190Abstract: A fluid machine for a gas compression refrigerating system comprises a first and a second working for performing a pump mode operation, in which working fluid of low pressure is sucked into and compressed by the working chambers. The fluid machine further comprises valve mechanism for selectively forming a motor mode passage in combination with a fluid passage change-over device, so that super heated working fluid of high pressure is introduced into at least one of the working chambers to perform a motor mode operation, in which the high pressure working fluid is expanded in the working chamber to obtain mechanical energy. The fluid machine according to the invention, therefore, performs the pump mode operation at one of the working chambers and at the same time the motor mode operation at the other working chamber.Type: GrantFiled: September 24, 2004Date of Patent: October 17, 2006Assignees: Nippon Soken, Inc., Denso CorporationInventors: Hiroshi Ogawa, Mikio Matsuda, Kazuhide Uchida, Shigeki Iwanami, Keiichi Uno, Hironori Asa
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Publication number: 20060192491Abstract: A high-pressure discharge lamp comprising a translucent airtight container having a discharge space therein, a pair of electrodes sealed in the airtight container, the electrodes having an inter-electrode distance D of 2 mm or less and facing the discharge space, and an ionizing medium sealed in the airtight container and substantially being mercury-free while it contains thulium (Tm) halide, zinc (Zn) halide and rare gas, the zinc (Zn) halide being less than 20% to 90% by mass of all metal halides sealed in the airtight container, wherein a ratio V1/D of a lamp voltage V1 (V) to the inter-electrode distance D (mm) satisfies the following formula.Type: ApplicationFiled: February 28, 2006Publication date: August 31, 2006Inventors: Takahito Kashiwagi, Masazumi Ishida, Mikio Matsuda, Kozo Uemura
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Patent number: 7083396Abstract: In a fluid apparatus used as a compressor, a swing support member is constructed of a hook-type adjustable joint, and supports a swing member in capable of swinging while restricting the swing member from rotating about a center axis of a shaft of the compressor. A variable mechanism portion is constructed of a rotary member rotatable around the shaft, the swing member and the like. A slant center around which the swing member swings is made to substantially correspond to a center of gravity of the variable mechanism portion. Therefore, a slant moment, for changing a slant angle of the swing member, is not structurally generated. Accordingly, even when the compressor operates, large vibration and large noise can be prevented, thereby improving durability of the compressor.Type: GrantFiled: May 16, 2003Date of Patent: August 1, 2006Assignees: Denso Corporation, Nippon Soken, Inc.Inventors: Shigeru Kawano, Hirokazu Kamiya, Masafumi Inoue, Shigeru Kamiya, Mikio Matsuda, Takashi Inoue
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Patent number: 7057349Abstract: A metal halide discharge lamp which essentially permits disusing mercury is provided. The metal halide discharge lamp comprises a refractory and transparent hermetic vessel, a pair of electrodes fixed to the hermetic vessel, and a discharge medium sealed in the hermetic vessel and containing a first halide, a second halide, and a rare gas. The first halide is a halide of a metal which achieves a desired light emission. The second halide has a relatively high vapor pressure, being at least one halide of metal which is unlikely to emit a visible light compared with the metal of the first halide and acts as a buffer gas.Type: GrantFiled: February 18, 2005Date of Patent: June 6, 2006Assignee: Harison Toshiba Lighting CorporationInventors: Toshihiko Ishigami, Kiyoshi Saita, Mikio Matsuda, Toshio Hiruta
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Publication number: 20050220642Abstract: A switch valve structure of a fluid machine (10) having a pump mode to operate as a compressor and a motor mode to operate as an expander is disclosed. In pump mode, a communication path (106) between a working chamber (V) and a high-pressure chamber (104) is closed, while in motor mode, the communication path (106) is opened by a valve unit (107d). The valve unit (107d) is includes a spool portion (117) sliding in the direction substantially perpendicular to the surface to which the communication path (106) opens and a valve portion (127) arranged at the forward end of the spool portion (127) and sliding with the spool portion (117) thereby to open/close the communication path (106). A swivel mechanism (137) is interposed between the spool portion (117) and the valve portion (127) to tilt the sliding axis of the valve portion (127) at an arbitrary angle with respect to the sliding axis of the spool portion (117).Type: ApplicationFiled: March 29, 2005Publication date: October 6, 2005Inventors: Keiichi Uno, Shigeki Iwanami, Mikio Matsuda, Hiroshi Ogawa