Patents by Inventor Yoshinori Taguchi
Yoshinori Taguchi 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: 6144267Abstract: A normal NRD guide is constituted in the part to be coupled with a dielectric resonator, a hyper NRD guide for simply transmitting the LSM01 mode is constituted in a multipoints circulator part, the normal NRD guide is constituted in a coupler part, the hyper NRD guide is constituted in the mixer part, and the normal NRD guides are constituted in a dielectric line switch part and in a connection unit between components.Type: GrantFiled: December 18, 1998Date of Patent: November 7, 2000Assignee: Murata Manufacturing Co., Ltd.Inventors: Atsushi Saitoh, Toru Tanizaki, Hiroshi Nishida, Ikuo Takakuwa, Yoshinori Taguchi
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Patent number: 6133887Abstract: An antenna device and a transmitting and receiving unit using the device which are capable of simultaneously polarizing each direction of a plurality of beams are provided without increasing the size of the whole device. For example, when the detection is achieved by forming a plurality of beams such as a radar of monopulse type, the angle measurement range is easily extended. A movable part is provided with a plurality of primary radiators and movable part side transmission lines (dielectric strips of NRD guide) to be coupled therewith, and a fixed part side is provided with dielectric lenses to form each focal plane at the position of primary radiators, and fixed part side transmission lines (dielectric strips of NRD guide) to be respectively coupled with the movable part side transmission lines. A plurality of beams are simultaneously tilted by displacing the movable part.Type: GrantFiled: July 2, 1999Date of Patent: October 17, 2000Assignee: Murata Manufacturing Co., Ltd.Inventors: Toru Tanizaki, Yoshinori Taguchi
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Patent number: 5917232Abstract: A dielectric-line component (such as an oscillator or circulator) has a dielectric strip between a pair of electrically conductive flat-plates. The component is to be combined with another dielectric-line component which also has dielectric strips between a pair of conductive plates. When these components are assembled, a pair of conductive plates of the respective two components opposedly face each other at a first position, while the other pair of conductive plates of the respective two components opposedly face each other at a second position. The first and second positions are displaced from each other in the vertical direction and in the length direction in relation to the conductive plates. Further, the opposing faces of the dielectric strips of the two components are positioned in an area defined by the first and second positions, either between the first and second positions or at one of the first and second positions, for example.Type: GrantFiled: July 8, 1997Date of Patent: June 29, 1999Assignee: Murata Manufacturing Co., Ltd.Inventors: Toru Tanizaki, Yoshinori Taguchi
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Patent number: 5845726Abstract: A vehicle driving force control apparatus which can reduce a driver's embarrassment at difference in accelerator feeling when the driver switches from a constant speed cruise mode to an ordinary variable speed drive mode, and which allows the use of engine brake even while constant speed cruise is requested. The apparatus comprises a switch for constant speed cruise, an accelerator sensor, a brake sensor, a current speed sensor, and a cruise condition judging function for deciding that cruise conditions are satisfied when constant speed cruise is requested, the accelerator pedal is not depressed, and the brake pedal is not depressed, and deciding that the cruise conditions are not satisfied in other cases. It updates target vehicle speed with current vehicle speed when the cruise conditions are not satisfied or on the instant when the cruise conditions are changed from dissatisfied to satisfied and sets controlled output so that current vehicle speed reaches the target vehicle speed.Type: GrantFiled: July 8, 1997Date of Patent: December 8, 1998Assignee: Aisin Seiki Kabushiki KaishaInventors: Mitsuo Kikkawa, Masaru Shimizu, Yoshinori Taguchi, Tomomitsu Terakawa
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Patent number: 5524589Abstract: A throttle control apparatus carries out electronic throttle control, wherein a throttle valve is opened and closed by a motor actuated in accordance with depression of an accelerator pedal. It includes an accelerator lever actuated by the accelerator pedal, a throttle lever provided with the throttle valve, a motor lever actuated by the motor so as to operate the throttle lever in a valve-opening direction and in a valve-closing direction, a limp home lever, and an urging spring for urging the motor lever and the throttle lever in the valve-closing direction. The limp home lever is held rotatably on the throttle lever so as to rotate to an engagement position where it can mechanically engage with the accelerator lever and to a siding position where it cannot mechanically engage therewith.Type: GrantFiled: November 17, 1994Date of Patent: June 11, 1996Assignee: Aisin Seiki Kabushiki KaishaInventors: Mitsuo Kikkawa, Masaru Shimizu, Yoshinori Taguchi, Tomomitsu Terakawa
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Patent number: 5267541Abstract: A control system for a variable displacement engine for an automobile changes a number of the cylinders of the engine when an engine load changes. The system sets an amendment value to a throttle valve opening in accordance with a throttle valve opening and an engine revolution. The system controls the throttle valve before the system changes a number of the cylinders. Thus the throttle valve is controlled to obtain the same torque before and after the change of the number of the cylinders.Type: GrantFiled: January 31, 1992Date of Patent: December 7, 1993Assignee: Aisin Seiki Kabushiki KaishaInventors: Yoshinori Taguchi, Yukihisa Oda, Tokihiko Akita, Masaru Shimizu, Toru Fujikawa
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Patent number: 5235951Abstract: The invention is directed to a throttle control apparatus for controlling an opening of a throttle valve in an internal combustion engine, in response to operation of an accelerator operating mechanism. The apparatus includes a motor, a clutch, and a control circuit which controls the clutch to selectively take one of a first position of the motor engaged with the throttle valve and a second position disengaged therefrom. There is provided a first detector for producing a first signal corresponding to an amount of operation of the accelerator operating mechanism. Also provided is a second detector for producing a second signal corresponding to an opening angle of the throttle valve. Independent of the control unit, it is determined in accordance with the first and second signals if there is an abnormality, in which the throttle valve opens at an angle more than a predetermined angle when the accelerator operating mechanism is positioned at its initial position.Type: GrantFiled: October 9, 1992Date of Patent: August 17, 1993Assignees: Aisin Seiki Kabushiki Kaisha, Toyota Jidosha Kabushiki KaishaInventors: Yoshinori Taguchi, Shinichiro Tanaka, Keiji Aoki
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Patent number: 5163402Abstract: A throttle control apparatus includes an accelerator operation mechanism, a throttle shaft, a driving source, an electromagnetic clutch mechanism, driving control means, accelerator operational amount detecting means, accelerator abnormality detecting means, throttle valve opening amount detecting means, throttle abnormality detecting means, valve abnormality detecting means and clutch control means. The accelerator abnormality detecting means judge the abnormality of the accelerator operational amount detecting means and the throttle abnormality detecting means judge the abnormality of the throttle valve opening amount detecting means. Furthermore, the valve abnormality detecting means judge the operation of the throttle control as abnormality when the amount of the throttle valve opening is more than a prescribed value under the condition which the operational amount of the accelerator operation amount is less than a prescribed value.Type: GrantFiled: December 26, 1991Date of Patent: November 17, 1992Assignee: Aisin Seiki Kabushiki KaishaInventors: Yoshinori Taguchi, Yukihisa Oda, Tokihiko Akita, Masaru Shimizu, Toru Fujikawa
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Patent number: 5048484Abstract: Disclosed herein is a throttle controller that uses a clutch means to connect a throttle operation means to a driving means under normal acceleration control. The controller allows the driving means to regulate the opening of the throttle valve independent of an accelerator operation mechanism. This makes it possible to start and run the vehicle smoothly in response to accelerator pedal operation, as well as to provide diverse kinds of control including constant speed drive control. In particular, a second control means independent of a first control means allows a driving control means to control the clutch means, thereby reliably providing constand speed drive control irrespective of accelerator pedal operation.Type: GrantFiled: May 15, 1990Date of Patent: September 17, 1991Assignee: Aisin Seiki Kabushiki KaishaInventors: Tadashi Terazawa, Hiroshi Nakashima, Yoshinori Taguchi
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Patent number: 5048485Abstract: A throttle control method for an internal combustion engine wherein a motor is connected through a clutch mechanism to a throttle valve which is constantly biased toward a closed position by a return spring. The motor is controlled in accordance with an output signal from a throttle sensor which detects the degree of opening of the throttle valve. This arrangement controls the amount of intake air into the internal combustion engine. The clutch mechanism is engaged and disengaged in accordance with a running condition of the vehicle and an operating condition of the internal combustion engine. An operating condition of the motor, the throttle sensor, the clutch mechanism and the return spring, is detected by activating the motor and the clutch mechanism, and when an abnormality is detected in at least one of the devices, both the motor and the clutch mechanism are deactivated.Type: GrantFiled: May 29, 1990Date of Patent: September 17, 1991Assignee: Aisin Seiki Kabushiki KaishaInventors: Tadashi Terazawa, Hiroshi Nakashima, Yoshinori Taguchi
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Patent number: 4995363Abstract: A throttle controller has a first detecting device for outputting a signal corresponding to an amount of the accelerator operation of an accelerator operating mechanism; a second detecting device for outputting a signal corresponding to an opening of a throttle valve; a first controlling device for permitting drive control by a drive controlling device in such a manner that a clutch device separates a throttle opening and closing device from a driving device, when an output signal of the first detecting device is a signal representative of an amount of operation not more than a predetermined amount of accelerator operation and when an output signal of the second detecting means is a signal representative of an opening exceeding a predetermined throttle opening; and a second controlling device disposed in parallel with and independently of the first controlling device and adapted to permit control of the driving of the clutch device by the drive controlling device, the second controlling device permitting contType: GrantFiled: May 14, 1990Date of Patent: February 26, 1991Assignee: Aisin Seiki Kabushiki KaishaInventors: Tadashi Terazawa, Hiroshi Nakashima, Yoshinori Taguchi
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Patent number: 4890096Abstract: A coordinate input device with a display includes a tablet composed of two position detecting units each formed by alternately arranged exciting and detecting lines parallel to each other on a magnetic member in the form of a sheet. These units are overlaid one upon the other so that exciting and detecting lines of one unit extend orthogonally with respect to those of the other. A planar display is overlaid on the tablet. The device further includes a position designating magnetic generator which locally applies a magnetic bias to the magnetic members of the tablet. The exciting lines of the tablet are supplied with an alternating current of a predetermined cycle by a driving current source. A position detecting circuit detects the coordinate values of a position designated by the position designating magnetic generator from the induced voltages respectively generated from the detecting lines of the tablet. The display is driven by a display control circuit.Type: GrantFiled: October 30, 1985Date of Patent: December 26, 1989Assignee: Wacom Co., Inc.Inventors: Yoshinori Taguchi, Tsuguya Yamanami
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Patent number: 4845478Abstract: A coordinate input device with a display includes a position detecting tablet having a plurality of X-direction magnetostrictive transmission mediums and a plurality of Y-direction magnetostrictive transmission mediums superposed orthogonally, a first coil wound around one end of the array of magnetostrictive transmission mediums, and a second coil wound over substantially the entire lengths of the magnetostrictive transmission mediums. A position indicated on the tablet by a position indicating magnetism generator is detected by measuring the length of time between the moment at which a pulse current is applied to one of the first and second coils and the moment at which the voltage induced in the other of the first and second coils by a magnetostrictive vibration wave exceeds a threshold value owing to the sudden increase of voltage observed when the wave passes the indicated position.Type: GrantFiled: December 21, 1984Date of Patent: July 4, 1989Assignee: Wacom Co., Ltd.Inventors: Yoshinori Taguchi, Tsuguya Yamanami
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Patent number: 4832144Abstract: A position detector comprising a plurality of magnetostriction propagating media extending substantially in parallel with one another and having first coils wound about the media at respective first ends thereof and second coils wound around the media over respective lengths thereof. A current pulse is applied to each of the first coils to generate magnetostrictive oscillation waves in the regions of the mediae around which the first coils are wound. The waves propagate through the media and cause an induced voltage to be generated in the respective second coils at the position where position indicators generate a steady magnetic field. The position of the position indicators is determined by measuring the time that elapses between generating the oscillating waves and receiving the induced voltages.Type: GrantFiled: May 23, 1988Date of Patent: May 23, 1989Assignee: Kabushiki Kaisha WACOMInventors: Azuma Murakami, Yoshinori Taguchi, Kenichi Takahashi, Takeshi Tanaka, Yoshiaki Tomofuji
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Patent number: 4709209Abstract: A position detecting apparatus has a plurality of magnetostrictive transmission medium elements which are arranged substantially in parallel with one another. A first coil and a second coil are wound around these elements such that signals are exchanged between these coils through the intermediary of the magnetostrictive transmission medium elements. The electric-mechanical coupling coefficient of the magnetostrictive transmission medium elements is locally changed by a magnetism from a position appointing magnetism generator so as to appoint a position on a plane provided by the magnetostrictive transmission medium elements, and the appointed position is detected through detection of a change in the timing of a signal caused by the local change in the above-mentioned coefficient. The position appointing magnetism generator is not connected to any portion of the stationary part of the apparatus.Type: GrantFiled: May 14, 1986Date of Patent: November 24, 1987Assignee: Wacom Co., Ltd.Inventors: Azuma Murakami, Yuji Katsurahira, Yoshinori Taguchi
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Patent number: 4704501Abstract: A position detecting device includes a tablet which has a magnetic sheet and two conductor sheets. The magnetic sheet is formed by weaving a group of warp elements (or weft elements) having multiple insulating fibers and a plurality of relatively long magnetic elements disposed among the fibers at predetermined regular spacings and a group of weft elements (or warp elements) having multiple insulating fibers into a plain weave fabric, which is hardened into a sheet-like configuration. Each of the conductor sheets has a plurality of linear conductor elements extending substantially parallel to each other. The two conductor sheets are respectively overlaid on the upper and lower sides of the magnetic sheet so that the conductor elements and the magnetic elements extend orthogonally with respect to each other. The corresponding conductor elements of the upper and lower conductor sheets are connected to from alternate exciting and detecting lines.Type: GrantFiled: December 26, 1985Date of Patent: November 3, 1987Assignee: Wacom Co., Ltd.Inventors: Yoshinori Taguchi, Tsuguya Yamanami
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Patent number: 4697244Abstract: A coordinate input device with display includes a tablet having a plurality of parallel X-direction magnetostrictive transmission mediums, a plurality of parallel Y-direction magnetostrictive transmission mediums superposed on, and substantially orthogonal to the X-direction mediums thereto, and first and second coils wound around the magnetostrictive transmission mediums. The device further includes a plurality of biasing magnetic means for applying a biasing magnetic field to portions of the magnetostrictive transmission mediums surrounded by the first and second coils, and a tabular display superposed on the tablet and having a display area substantially equal to the position detection area on the tablet. A magnetic pen is used to cause a local increase of electro-mechanical coupling coefficient in the magnetostrictive transmission mediums in the tablet.Type: GrantFiled: January 22, 1985Date of Patent: September 29, 1987Assignee: Wacom Co., Ltd.Inventors: Azuma Murakami, Yoshinori Taguchi, Tsuguya Yamanami
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Patent number: 4678870Abstract: A position detecting device includes a magnetic member composite which is integrally composed of a pair of insulating substrates with a plurality of long magnetic members sandwiched therebetween and arranged substantially parallel to each other and two conductive member composites, each of which is composed of a plurality of conductive members arranged substantially parallel to each other.Type: GrantFiled: December 11, 1985Date of Patent: July 7, 1987Assignee: Wacom Co., Ltd.Inventors: Yoshinori Taguchi, Tsuguya Yamanami
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Patent number: 4658373Abstract: A position detecting apparatus has a matrix-like arrangement constituted by a plurality of substantially parallel X-direction magnetrostrictive line bundles, each of the bundles having at least one magnetostrictive transmission medium element, and a plurality of substantially parallel Y-direction magnetostrictive line bundles, each of the bundles having at least one magnetostrictive transmission medium element, the Y-direction magnetostrictive line bundles crossing the X-direction magnetrostrictive line bundles substantially at a right angle. First coils are wound commonly around one end of the X-direction magnetostrictive line bundles and Y-direction magnetostrictive line bundles, respectively. Second coils have portions wound around the X-direction magnetostrictive line bundles over a large length thereof and the portions wound around the Y-direction magnetostrictive line bundles over a large length thereof.Type: GrantFiled: August 6, 1984Date of Patent: April 14, 1987Assignee: Wacom Co., Ltd.Inventors: Azuma Murakami, Yoshinori Taguchi
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Patent number: RE33740Abstract: A position detecting device includes a tablet which has a magnetic sheet and two conductor sheets. The magnetic sheet is formed by weaving a group of warp elements (or weft elements) having multiple insulating fibers and a plurality of relatively long magnetic elements disposed among the fibers at predetermined regular spacings and a group of weft elements (or warp elements) having multiple insulating fibers into a plain weave fabric, which is hardened into a sheet-like configuration. Each of the conductor sheets has a plurality of linear conductor elements extending substantially parallel to each other. The two conductor sheets are respectively overlaid on the upper and lower sides of the magnetic sheet so that the conductor elements and the magnetic elements extend orthogonally with respect to each other. The corresponding conductor elements of the upper and lower conductor sheets are connected to from alternate exciting and detecting lines.Type: GrantFiled: November 3, 1989Date of Patent: November 12, 1991Assignee: Wacom Co., Ltd.Inventors: Yoshinori Taguchi, Tsuguya Yamanami