Patents by Inventor Masaharu Tanaka

Masaharu Tanaka 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).

  • Patent number: 7673612
    Abstract: A target engine torque after an environmental correction is calculated by interpolating it between an environmentally corrected maximum engine torque and an environmentally corrected minimum engine torque such that a ratio of a nominal target engine torque between a nominal maximum engine torque and a nominal minimum engine torque under a predetermined environmental condition becomes essentially equal to a ratio of the target engine torque between the environmentally corrected maximum engine torque and the environmentally corrected minimum engine torque. The environmentally corrected maximum engine torque is obtained by multiplying the nominal maximum engine torque and a correction coefficient according to the environmental condition together.
    Type: Grant
    Filed: January 29, 2007
    Date of Patent: March 9, 2010
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Hiroyasu Honda, Masaharu Tanaka, Masami Kondo
  • Publication number: 20100018243
    Abstract: There is provided an integrated electric compressor that is improved in reliability. Bus bar connection is employed for electrical connection between a power board 16 and the power source side and between the power board 16 and the motor side, and welding is employed for joining a bus bar to a capacitor 13 and a reactor 14, for joining board-side terminal parts of the bus bar to PN terminals 20a and 20b, and for joining UVW terminals 25a, 25b and 25c to housing-side terminals 28a, 28b and 28c. By employing resistance welding for the welding, the terminals can be joined to each other with stabilized quality. Further, since flat joint plates are provided on one end side of the housing-side terminals 28a, 28b and 28c, and the UVW terminals 25a, 25b and 25c are welded thereto, reliable joints between terminals can also be attained in these portions.
    Type: Application
    Filed: September 28, 2007
    Publication date: January 28, 2010
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Masaharu Tanaka, Koji Nakano, Takashi Nakagami, Makoto Hattori, Takayuki Takashige, Kazuki Niwa, Hiroyuki Kamitani
  • Patent number: 7625313
    Abstract: In a shift control device and a shift control method of a vehicular automatic transmission that performs a coast downshift by engagement switch between a release-side engagement element and an element-side engagement element at a time of deceleration of a vehicle, it is determined whether or not there is a driver's intention to decelerate the vehicle during the coast downshift. If an affirmative determination is made regarding the intention to decelerate the vehicle, the rise of engagement pressure of the engagement-side engagement element is stopped so as to cause the coast downshift not to progress. If a negative determination is made regarding the intention to decelerate the vehicle while the rise of the engagement pressure has been stopped, the engagement pressure of the engagement-side engagement element is raised again so as to cause the coast downshift to progress.
    Type: Grant
    Filed: December 5, 2006
    Date of Patent: December 1, 2009
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Tomohiro Kondo, Yoji Takanami, Atsushi Ayabe, Masami Kondo, Masaharu Tanaka
  • Publication number: 20090243227
    Abstract: An oil seal for sealing a hollow rotary shaft in a power transmission apparatus, wherein the rotary shaft is formed with an internal flow passage through which oil flows and constituted such that the oil flies out as the rotary shaft rotates, including: a fixed portion that is fixedly attached to a case of the power transmission apparatus; a seal portion that seals the rotary shaft at a position that is axially offset position from the fixed portion and allows the rotary shaft to rotate; and a radiator portion that is formed from a metallic material between the fixed portion and the seal portion, receives the oil that flies out as the rotary shaft rotates, and dissipates heat generated by the seal portion by exchanging heat with the oil.
    Type: Application
    Filed: March 30, 2009
    Publication date: October 1, 2009
    Applicants: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kazutoshi OMAGARI, Teruhito FUKUOKA, Kenji NAGAI, Naruhito NAGASE, Youhei HABATA, Hiroya MIZUTA, Masaharu TANAKA
  • Publication number: 20090181823
    Abstract: An ECU executes a program including the steps of: setting a first throttle opening degree (S100), setting a low gear torque LTE based on an engine torque map for low gear having the first throttle opening degree and an engine speed (rpm) as parameters (S200), setting a high gear torque HTE based on an engine torque map for high gear having the first throttle opening degree and the engine speed as parameters (S300), setting a target engine torque TTE by combining the low gear torque LTE and the high gear torque HTE by using a correction ratio KGR determined by a gear step (S400), and controlling the engine to produce a required torque set by using the target engine torque TTE (S700). In this way a torque can be obtained in accordance with the engine speed.
    Type: Application
    Filed: June 6, 2007
    Publication date: July 16, 2009
    Inventors: Naoto Moriya, Masaharu Tanaka, Masami Kondo, Hiroyasu Honda
  • Patent number: 7537746
    Abstract: A process for producing inorganic spheres, which comprises injecting an aqueous liquid containing an inorganic compound into a laminar flow of an organic liquid which runs at a flow rate of from 0.001 to 2 m/s in a flow path compartmentalized by a partition wall through a plurality of inlet holes formed in one partition wall to form a W/O type emulsion containing the organic liquid as a dispersion medium and the aqueous liquid containing the inorganic compound as a dispersed phase, and solidifying the aqueous liquid containing an inorganic compound in the W/O type emulsion, wherein the partition wall having a plurality of inlet holes is made of a metal sheet having a surface subjected to water repellent treatment.
    Type: Grant
    Filed: June 10, 2004
    Date of Patent: May 26, 2009
    Assignee: Asahi Glass Company, Limited
    Inventors: Toshiya Matsubara, Masaharu Tanaka, Kenji Yamada, Hajime Katayama
  • Publication number: 20090000874
    Abstract: A breather device includes a main body that includes a breather chamber with an inner bottom surface; a first communicating portion provided at the main body; a second communicating portion provided at the main body and at a position above the first communicating portion in a vertical direction and away from the first communicating portion in a horizontal direction; and a downward gradient provided at the inner bottom surface of the breather chamber, the downward gradient guides the oil that has entered the breather chamber through the first communicating portion toward the first communicating portion.
    Type: Application
    Filed: June 27, 2008
    Publication date: January 1, 2009
    Applicants: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Naoya Okada, Shyusaku Kitamura, Atsushi Nakamura, Naoki Itazu, Toshihiro Fukumasu, Hiromitu Metugi, Masaharu Tanaka
  • Publication number: 20080287258
    Abstract: In a shift control device and a shift control method for an automatic transmission, when the shift range is switched from a non-travel range to a travel range, a squat control of temporarily forming a high-speed step that is smaller in speed change ratio than the first speed change step by engaging a first engagement element and a second engagement element, and then forming the first speed change step by releasing the second engagement element. In the case of standing-start of the vehicle in the high-speed step, the squat control is ended before the first speed change step is formed by releasing the second engagement element.
    Type: Application
    Filed: May 14, 2008
    Publication date: November 20, 2008
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Naoto Moriya, Masaharu Tanaka, Yoshio Hasegawa, Tomohiro Asami
  • Publication number: 20080288156
    Abstract: A target engine torque after an environmental correction is calculated by interpolating it between an environmentally corrected maximum engine torque and an environmentally corrected minimum engine torque such that a ratio of a nominal target engine torque between a nominal maximum engine torque and a nominal minimum engine torque under a predetermined environmental condition becomes essentially equal to a ratio of the target engine torque between the environmentally corrected maximum engine torque and the environmentally corrected minimum engine torque. The environmentally corrected maximum engine torque is obtained by multiplying the nominal maximum engine torque and a correction coefficient according to the environmental condition together.
    Type: Application
    Filed: January 29, 2007
    Publication date: November 20, 2008
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroyasu Honda, Masaharu Tanaka, Masami Kondo
  • Publication number: 20080267853
    Abstract: To provide a process for producing inorganic spheres having a substantially uniform particle size with high productivity. In a process for producing inorganic spheres, which comprises a step of injecting an alkaline aqueous liquid containing an inorganic compound into a laminar flow of an organic liquid containing a surfactant through micropores to form a W/O type emulsion, and a step of solidifying droplets of the aqueous liquid containing an inorganic compound in the W/O type emulsion by an acid to form inorganic spheres, as the organic liquid, one which is brought into contact with an acid in a state of the W/O type emulsion or after separated from the W/O type emulsion, or one which is brought into contact with the aqueous liquid and then separated and recovered, is used.
    Type: Application
    Filed: June 26, 2008
    Publication date: October 30, 2008
    Applicant: Asahi Glass Company, Limited
    Inventors: Toshiya Matsubara, Masaharu Tanaka, Hajime Katayama, Kenji Yamada
  • Patent number: 7442356
    Abstract: To provide a process for producing inorganic spheres having a substantially uniform particle size with high productivity. In a process for producing inorganic spheres, which comprises a step of injecting an alkaline aqueous liquid containing an inorganic compound into a laminar flow of an organic liquid containing a surfactant through micropores to form a W/O type emulsion, and a step of solidifying droplets of the aqueous liquid containing an inorganic compound in the W/O type emulsion by an acid to form inorganic spheres, as the organic liquid, one which is brought into contact with an acid in a state of the W/O type emulsion or after separated from the W/O type emulsion, or one which is brought into contact with the aqueous liquid and then separated and recovered, is used.
    Type: Grant
    Filed: November 14, 2005
    Date of Patent: October 28, 2008
    Assignee: Asahi Glass Company, Limited
    Inventors: Toshiya Matsubara, Masaharu Tanaka, Hajime Katayama, Kenji Yamada
  • Publication number: 20080066567
    Abstract: A gear shift controlling apparatus of an automatic transmission for a vehicle has a synchronization-time engagement pressure correcting device that, before synchronization of gear-shifting, makes an increase correction of an engagement pressure of the disengaged-side engaging element by a first prescribed amount, to cause an input shaft rotational speed immediately before synchronizing of the automatic transmission to approach a rotational speed calculated by multiplying an output shaft rotational speed by a gear ratio of a gear after gear-shifting the automatic transmission.
    Type: Application
    Filed: September 5, 2007
    Publication date: March 20, 2008
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Nobufusa Kobayashi, Toshio Sugimura, Tomohiro Asami, Takaaki Tokura, Tomohiro Kondo, Masami Kondo, Masaharu Tanaka
  • Publication number: 20080071449
    Abstract: The adjustment method includes an estimation step in which valve characteristics of the linear solenoid valves fitted to the hydraulic control circuit are measured, and estimated linear valve characteristics of the linear solenoid valves in isolation state are estimated based on the measured valve characteristics using predetermined correlations; and a correction value output step in which estimated linear piston-end pressures of the hydraulically-driven friction engagement elements immediately before the hydraulically-driven friction engagement elements are engaged are calculated based on the estimated linear valve characteristics, and the correction values that are applied to the control command values to adjust the drive currents supplied from the valve control unit to the linear solenoid valves are calculated based on differences between the estimated linear piston-end pressures and nominal piston-end pressures, and then output.
    Type: Application
    Filed: September 12, 2007
    Publication date: March 20, 2008
    Inventors: Masami Kondo, Masaharu Tanaka, Takayuki Kawakami, Naoto Moriya
  • Publication number: 20080004159
    Abstract: When determining whether to perform one shift, from among a downshift and an upshift to an adjacent gear speed from a predetermined gear speed after the other shift from among a downshift and an upshift was performed, a shift line switching portion switches a shift line from a shift line that is based on the speed ratio of the predetermined gear speed to a shift line that is based on the speed ratio after the one shift. Accordingly, a shift determining portion determines whether to perform the one shift using the shift line that is based on the speed ratio after the one shift, and that shift is executed.
    Type: Application
    Filed: July 2, 2007
    Publication date: January 3, 2008
    Inventors: Hideki Kubonoya, Masaharu Tanaka, Masami Kondo, Seiji Kuwahara
  • Publication number: 20070179016
    Abstract: In an engine control apparatus, a target engine torque after an environment correction is calculated by interpolating it between an environmentally corrected maximum engine torque and an environmentally corrected minimum engine torque according to a target torque ratio which is a ratio of the target engine torque between the maximum engine torque and the minimum engine torque under a predetermined environmental condition. The maximum engine torque and the minimum engine torque are set based on a smoothed maximum engine torque and a smoothed minimum engine torque obtained by smoothing out a change over time in an estimated maximum engine torque and an estimated minimum engine torque currently able to be output according to a change in the environmental condition.
    Type: Application
    Filed: January 25, 2007
    Publication date: August 2, 2007
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Hiroyasu Honda, Masaharu Tanaka, Masami Kondo
  • Publication number: 20070129214
    Abstract: In a shift control device and a shift control method of a vehicular automatic transmission that performs a coast downshift by engagement switch between a release-side engagement element and an element-side engagement element at a time of deceleration of a vehicle, it is determined whether or not there is a driver's intention to decelerate the vehicle during the coast downshift. If an affirmative determination is made regarding the intention to decelerate the vehicle, the rise of engagement pressure of the engagement-side engagement element is stopped so as to cause the coast downshift not to progress. If a negative determination is made regarding the intention to decelerate the vehicle while the rise of the engagement pressure has been stopped, the engagement pressure of the engagement-side engagement element is raised again so as to cause the coast downshift to progress.
    Type: Application
    Filed: December 5, 2006
    Publication date: June 7, 2007
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Tomohiro Kondo, Yoji Takanami, Atsushi Ayabe, Masami Kondo, Masaharu Tanaka
  • Patent number: 7109531
    Abstract: A high frequency switch, has a transmitting terminal, a receiving terminal, an antenna terminal, a first diode having an anode electrically connected to the transmitting terminal and a cathode electrically connected to the antenna terminal, a second diode having an anode connected through a transmission line of ΒΌ wavelength to the antenna terminal which is electrically connected to the receiving terminal, and having the side of a cathode grounded, and a control terminal provided to a node between the transmitting terminal and the first anode. The first and second diodes have a tradeoff relationship between ON resistance thereof and capacitance between the anode and the cathode, and the ON resistance of the first diode is lower than the ON resistance of the second diode, and the capacitance of the second diode in the OFF state is smaller than the capacitance of the first diode in the OFF state.
    Type: Grant
    Filed: October 28, 2004
    Date of Patent: September 19, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Shoichi Kitazawa, Masaharu Tanaka, Toshio Ishizaki, Toru Yamada
  • Publication number: 20060204310
    Abstract: An image recording device includes a printer assembly, including a former that is configured to form an image on recording media and a cassette is detachably attached to the printer assembly for accommodating recording media. A main lock lever is movably attached to the printer assembly, and includes a main lock section that is engageable with a main engagement section provided on the cassette. A cassette eject button is movably attached to the printer assembly and is engageable with the main lock lever for moving the main lock section between a position where the main lock section is engaged with the engagement section, and another position where the engagement between the main lock section and the engagement section is released. A sub-lock lever including a sub-lock section is engaged with an engagement section provided on the cassette.
    Type: Application
    Filed: May 17, 2006
    Publication date: September 14, 2006
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hidehiko Inokuchi, Masaharu Tanaka, Hiroyuki Ogata
  • Patent number: 7070350
    Abstract: A multi-part output paper tray 14 including a plurality of tray plates 21 to 24 slidably arranged together in a paper eject direction is attached to a printer assembly 1 so that it can be extended/collapsed, the printer assembly 1 including a print head attached thereto for forming an image on recording paper 50. The extended/collapsed state of the output paper tray 14 is detected by an angle sensor 313. A print operation is not performed when it is detected by the angle sensor 313 that the output paper tray 14 is in the housed state, and a print operation is performed when the output paper tray 14 is in the extended state.
    Type: Grant
    Filed: May 12, 2004
    Date of Patent: July 4, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hidehiko Inokuchi, Masaharu Tanaka, Hiroyuki Ogata, Kenji Kanabo, Yutaka Miyazono
  • Patent number: D522561
    Type: Grant
    Filed: February 23, 2005
    Date of Patent: June 6, 2006
    Assignee: Seiko Epson Corporation
    Inventors: Hajime Ikeuchi, Haruki Senda, Masaharu Tanaka, Teruo Sakurai, Akitoshi Kuroda, Toshimitsu Watanabe