Patents by Inventor Masaru Kamiya
Masaru Kamiya 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: 20240087969Abstract: A semiconductor device includes a base member and a semiconductor chip. The base member includes a first surface, a second surface opposite to the first surface, and a protrusion at the second surface side. The semiconductor chip being mounted on the second surface of the base member. The semiconductor chip includes first and second electrodes, a control pad, and a semiconductor part. The first electrode is provided on a back surface of the semiconductor part. The second electrode and the control pad are provided on a front surface of the semiconductor part. The semiconductor chip includes a space between the second electrode and the control pad at the front surface side of the semiconductor part. The semiconductor chip is mounted so that the space between the second electrode and the control pad overlaps the protrusion of the base member.Type: ApplicationFiled: March 7, 2023Publication date: March 14, 2024Inventors: Shunsuke KAMIYA, Shinya OZAWA, Shuji EGUMA, Masaru IZUMISAWA
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Patent number: 10495114Abstract: A blower fan includes a plurality of blades radially extending from a boss provided at a rotary center and spaced apart from each other in the rotational direction, and a ring portion connecting outer peripheral ends of the blades in a ring shape. A radially outer end part at an end on an air-flow upstream side of the ring portion is positioned outward in a radial direction of a rotary shaft in the blower fan, as toward the air-flow upstream side. Thus, the blower can prevent the backflow air from being swirled, thereby reducing noise.Type: GrantFiled: February 20, 2015Date of Patent: December 3, 2019Assignee: DENSO CORPORATIONInventors: Toshikatsu Kondou, Youhei Kamiya, Masaru Kamiya, Takeshi Miyamoto, Masashi Matsukawa, Isao Kondoh, Takashi Ito, Kazuhiro Takeuchi
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Patent number: 10330339Abstract: Multiple projections are provided at a flow-change portion, which corresponds to such a portion of a wall surface of an A/C casing, at which velocity gradient of air current becomes larger in an area adjacent to the wall surface, in order to decrease aerodynamic sound generated by disturbed air current.Type: GrantFiled: May 19, 2017Date of Patent: June 25, 2019Assignee: DENSO CORPORATIONInventors: Masaru Kamiya, Koji Ito, Shinya Kato
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Patent number: 10309422Abstract: A blower fan includes a plurality of blades radially extending from a boss provided at the rotary center and spaced apart from each other in the rotational direction, and a ring portion connecting outer peripheral ends of the blades in a ring shape. An inner peripheral wall surface of an end part on an air-flow downstream side of a cylindrical portion is disposed on the outside in a radial direction of the rotary shaft in the blower fan, with respect to an end part on the air-flow downstream side of the ring portion. The end part on the air-flow downstream side of the cylindrical portion is positioned outward in the radial direction of the rotary shaft, as toward the air-flow downstream side. Thus, the blower can prevent the backflow air from being swirled, thereby reducing noise.Type: GrantFiled: February 20, 2015Date of Patent: June 4, 2019Assignee: DENSO CORPORATIONInventors: Toshikatsu Kondou, Masashi Matsukawa, Youhei Kamiya, Masaru Kamiya, Takeshi Miyamoto, Isao Kondoh, Takashi Ito, Kazuhiro Takeuchi
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Publication number: 20170254561Abstract: Multiple projections are provided at a flow-change portion, which corresponds to such a portion of a wall surface of an A/C casing, at which velocity gradient of air current becomes larger in an area adjacent to the wall surface, in order to decrease aerodynamic sound generated by disturbed air current.Type: ApplicationFiled: May 19, 2017Publication date: September 7, 2017Inventors: Masaru KAMIYA, Koji ITO, Shinya KATO
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Publication number: 20160341220Abstract: A blower fan includes a plurality of blades radially extending from a boss provided at the rotary center and spaced apart from each other in the rotational direction, and a ring portion connecting outer peripheral ends of the blades in a ring shape. An inner peripheral wall surface of an end part on an air-flow downstream side of a cylindrical portion is disposed on the outside in a radial direction of the rotary shaft in the blower fan, with respect to an end part on the air-flow downstream side of the ring portion. The end part on the air-flow downstream side of the cylindrical portion is positioned outward in the radial direction of the rotary shaft, as toward the air-flow downstream side. Thus, the blower can prevent the backflow air from being swirled, thereby reducing noise.Type: ApplicationFiled: February 20, 2015Publication date: November 24, 2016Inventors: Toshikatsu KONDOU, Masashi MATSUKAWA, Youhei KAMIYA, Masaru KAMIYA, Takeshi MIYAMOTO, Isao KONDOH, Takashi ITO, Kazuhiro TAKEUCHI
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Publication number: 20160333893Abstract: A blower fan includes a plurality of blades radially extending from a boss provided at a rotary center and spaced apart from each other in the rotational direction, and a ring portion connecting outer peripheral ends of the blades in a ring shape. A radially outer end part at an end on an air-flow upstream side of the ring portion is positioned outward in a radial direction of a rotary shaft in the blower fan, as toward the air-flow upstream side. Thus, the blower can prevent the backflow air from being swirled, thereby reducing noise.Type: ApplicationFiled: February 20, 2015Publication date: November 17, 2016Inventors: Toshikatsu KONDOU, Youhei KAMIYA, Masaru KAMIYA, Takeshi MIYAMOTO, Masashi MATSUKAWA, Isao KONDOH, Takashi ITO, Kazuhiro TAKEUCHI
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Publication number: 20150152875Abstract: An air blower is provided with a drive motor and an air blowing fan which has a hub mounted to the drive motor and blades which are provided to the hub. The air blower is characterized in that serrations comprising triangle-shaped protrusions are provided to the front edge of each of the blades so as to be arranged along the front edge and in that the pitch, the height, or the direction of the serrations is changed according to the flow of air at a radial position on the air blowing fan.Type: ApplicationFiled: May 31, 2013Publication date: June 4, 2015Inventors: Masaru Kamiya, Hideki Ooya, Kenji Yoshida
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Publication number: 20130323098Abstract: TECHNICAL PROBLEM To provides a blower which aims at both a noise reduction effect and the inherent blowing performance SOLUTION TO PROGRAM An axial flow blower which is provided with an electric motor, and a blower fan which has a hub which is attached to said electric motor and a plurality of blades which are provided at said hub in a radial manner, wherein in said axial flow blower, a negative pressure surface of a leading edge of each said blade, comprised of a negative pressure surface and a positive pressure surface, is provided with a plurality of triangle shape projections which have vertexes along the leading edge, and the positive pressure surface of the leading edge of each said blade is not provided with said triangle shape projections but is a smooth continuous surface.Type: ApplicationFiled: May 31, 2013Publication date: December 5, 2013Applicant: DENSO CORPORATIONInventors: Hideki Ooya, Masaru Kamiya
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Publication number: 20120205070Abstract: Multiple projections are provided at a flow-change portion, which corresponds to such a portion of a wall surface of an A/C casing, at which velocity gradient of air current becomes larger in an area adjacent to the wall surface, in order to decrease aerodynamic sound generated by disturbed air current.Type: ApplicationFiled: February 13, 2012Publication date: August 16, 2012Applicant: DENSO CORPORATIONInventors: Masaru Kamiya, Koji Ito, Shinya Kato
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Patent number: 7525270Abstract: A motor control apparatus for controlling a motor with reduced noise and vibration includes a detecting means for detecting a rotational speed of the motor, a command signal processing means that generates a command signal for allowing the motor to rotate at a predetermined rotational speed, a drive means that generates a drive signal based on the command signal and supplies the drive signal to the motor, and a control signal generation means that generates a control signal for allowing the motor to produce a control torque having a frequency equal to one of frequencies of noise and vibration due to the motor. The frequency of the control torque corresponds to at least one of orders of the rotational speed detected by the detecting means. The command signal processing means generates the command signal based on the control signal.Type: GrantFiled: June 22, 2006Date of Patent: April 28, 2009Assignee: DENSO CORPORATIONInventors: Seiichiro Washino, Masaru Kamiya, Koji Sakai, Junichi Semura
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Patent number: 7336002Abstract: A main power source is, for example, an ordinary Pb battery. At the time of starting an engine, the main power source supplies power to a starter. The main power source is given a higher priority than an auxiliary power source to supply power to ordinary loads. The auxiliary power source is a high performance battery (e.g., Li ion battery), which has superior charge acceptance capability and better state detectability over the main power source. The auxiliary power source stores regenerative power, which is generated by a generator at the time of deceleration of a vehicle, and is used as a redundant power source for the main power source. The main power source and the auxiliary power source are connected to each other through a supply circuit, which has a DC/DC converter, and a second supply circuit, which has a switch.Type: GrantFiled: February 17, 2004Date of Patent: February 26, 2008Assignee: Denso CorporationInventors: Akira Kato, Katsunori Tanaka, Masaru Kamiya, Takashi Senda
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Publication number: 20060290305Abstract: A motor control apparatus for controlling a motor with reduced noise and vibration includes a detecting means for detecting a rotational speed of the motor, a command signal processing means that generates a command signal for allowing the motor to rotate at a predetermined rotational speed, a drive means that generates a drive signal based on the command signal and supplies the drive signal to the motor, and a control signal generation means that generates a control signal for allowing the motor to produce a control torque having a frequency equal to one of frequencies of noise and vibration due to the motor. The frequency of the control torque corresponds to at least one of orders of the rotational speed detected by the detecting means. The command signal processing means generates the command signal based on the control signal.Type: ApplicationFiled: June 22, 2006Publication date: December 28, 2006Applicant: DENSO CORPORATIONInventors: Seiichiro Washino, Masaru Kamiya, Koji Sakai, Junichi Semura
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Patent number: 7077092Abstract: An engine starter includes a starter motor which has an armature, a series-wound field coil and a parallel-wound field coil and a short-circuiting unit for short-circuiting the series-wound field coil under a predetermined engine starting condition. The series-wound field coil has a suitable current limiting resistance. The short-circuiting unit short-circuits the series-wound field coil after a crankshaft of an engine passes a first top dead center of an engine.Type: GrantFiled: July 20, 2005Date of Patent: July 18, 2006Assignees: Denso Corporation, Nippon Soken, Inc.Inventors: Takashi Senda, Masahiko Osada, Shinji Usami, Tsutomu Nakamura, Masaru Kamiya, Yoshikazu Yokochi
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Publication number: 20060097577Abstract: A main power source (2) is, for example, an ordinary Pb battery and generates a voltage of 12-13 V. At the time of starting an engine, the main power source (2) supplies power to a starter (8a). The main power source (2) is given a higher priority than an auxiliary power source (3) to supply power to ordinary loads (8b). The auxiliary power source (3) is a high performance battery (e.g., Li ion battery), which has superior charge acceptance capability and better state detectability over the main power source (2). Furthermore, the auxiliary power source (3) has an internal resistance per unit capacity, which is smaller than that of the main power source (2), and generates a voltage of 9-12 V. A generator (1) is directly connected to the auxiliary power source (3). The auxiliary power source (3) stores regenerative power, which is generated by the generator (1) at the time of deceleration of a vehicle, and is used as a redundant power source for the main power source (2).Type: ApplicationFiled: February 17, 2004Publication date: May 11, 2006Applicant: Denso CorporationInventors: Akira Kato, Katsunori Tanaka, Masaru Kamiya, Takashi Senda
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Publication number: 20050253393Abstract: An engine starter includes a starter motor which has an armature, a series-wound field coil and a parallel-wound field coil and a short-circuiting unit for short-circuiting the series-wound field coil under a predetermined engine starting condition. The series-wound field coil has a suitable current limiting resistance. The short-circuiting unit short-circuits the series-wound field coil after a crankshaft of an engine passes a first top dead center of an engine.Type: ApplicationFiled: July 20, 2005Publication date: November 17, 2005Applicants: Denso Corporation, Nippon Soken, Inc.Inventors: Takashi Senda, Masahiko Osada, Shinji Usami, Tsutomu Nakamura, Masaru Kamiya, Yoshikazu Yokochi
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Publication number: 20040168664Abstract: An engine starter includes a starter motor which has an armature, a series-wound field coil and a parallel-wound field coil and a short-circuiting unit for short-circuiting the series-wound field coil under a predetermined engine starting condition. The series-wound field coil has a suitable current limiting resistance. The short-circuiting unit short-circuits the series-wound field coil after a crankshaft of an engine passes a first top dead center of an engine.Type: ApplicationFiled: February 19, 2004Publication date: September 2, 2004Applicants: DENSO CORPORATION, NIPPON SOKEN, INC.Inventors: Takashi Senda, Masahiko Osada, Shinji Usami, Tsutomu Nakamura, Masaru Kamiya, Yoshikazu Yokochi
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Patent number: 6768215Abstract: In an engine starter of the present invention, a driving shaft to output a rotating force and a crankshaft of an engine are linked continuously. The engine starter comprises a one-way clutch to prevent an overrun of an armature after the engine starts. In the one-way clutch, a connecting rotation number in which an inner ring and an outer ring change from a disconnected state to a connected state in a decreasing process of engine revolutions is set above a lower limit of the engine revolutions above which the engine under suspension of the fuel supply is able to get restarted by itself by resuming of fuel supply. Therefore, the engine is always able to get restarted quickly even in a low-rotation range.Type: GrantFiled: August 2, 2002Date of Patent: July 27, 2004Assignee: Denso CorporationInventors: Takahiro Souki, Akira Kato, Masaru Kamiya, Keisuke Tani, Kazuo Masaki
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Publication number: 20040123587Abstract: When starting an engine, it is judged whether a catalyst is in an inactive condition or not and, if it is judged that the catalyst is in an inactive condition, the motor field current is reduced to control the output characteristic of the starter to a high-speed type, thus enabling the engine to be driven at high speed. As the engine rpm during driving rises compared with the normal case (the case where the catalyst is in an active condition), the amount of fuel remaining in the intake port and the cylinder decreases, and the injected fuel properly contributes to combustion. Accordingly, even when the catalyst is in an inactive condition, emissions (of HC) emitted into the atmosphere can be reduced.Type: ApplicationFiled: December 15, 2003Publication date: July 1, 2004Applicant: DENSO CORPORATIONInventors: Masaru Kamiya, Akira Kato, Masahiko Osada
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Patent number: 6754579Abstract: An engine automatic stop and start system monitors a booster negative pressure and a braking operation. A combination of the booster negative pressure and the brake operation can effectively indicate that a booster negative pressure will be insufficient to ensure a brake function. The controller evaluates the booster negative pressure and the brake operation, and restarts the engine when it is estimated that the booster negative pressure may be decreased below a threshold. As a result, it is possible to restart the engine before the booster negative pressure is decreased.Type: GrantFiled: June 26, 2002Date of Patent: June 22, 2004Assignee: Denso CorporationInventors: Masaru Kamiya, Akira Kato, Naoki Tanaka