Patents by Inventor Hiroshi Nakatani
Hiroshi Nakatani 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: 5373267Abstract: Disclosed is a piezoelectric resonator device. This piezoelectric resonator device comprises a piezoelectric substrate having an almost rectangular plane shape. The piezoelectric substrate is provided with a slit extending to the inside from one edge of the piezoelectric substrate, for forming a tuning fork portion, and a pair of slits for separating the tuning fork portion, spaced apart from the slit forming the tuning fork portion by a predetermined distance on both sides of the slit forming the tuning fork portion, and approximately parallel with the slit forming the tuning fork portion. Vibrating electrodes are formed on both major surfaces of the piezoelectric substrate at a piezoelectric vibrating portion, between the slits separating the tuning fork portion from non-vibrating portions of the substrate.Type: GrantFiled: July 23, 1992Date of Patent: December 13, 1994Assignee: Murata Manufacturing Co., Ltd.Inventors: Hiroaki Kaida, Jiro Inoue, Masatoshi Kajiwara, Hiroshi Nakatani, Katsumi Fujimoto, Katsumi Sakai
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Patent number: 5274293Abstract: A piezoelectric filter of an energy-trapped type utilizing a second harmonic wave of the thickness-extensional vibration mode, characterized in that an earth electrode is formed around the center of a piezoelectric substrate in the direction of thickness, and an input electrode and an output electrode are formed on one or both major surfaces of the piezoelectric substrate so as to be opposed to the earth electrode.Type: GrantFiled: October 22, 1991Date of Patent: December 28, 1993Assignee: Murata Manufacturing Co., Ltd.Inventors: Jiro Inoue, Masao Gamo, Hiroshi Nakatani
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Patent number: 5254954Abstract: An apparatus for detecting a defect in an insulator formed therein with an axially extending hollow section; having a hold section 2 for holding the insulator, a first electrode 3 inserted in the hollow section 1a of the insulator 1, and a second electrode provided outside of the insulator 1. An electric discharge structure 10 produces an electric discharge between the first and second electrodes 3, 5, a path recognizes 11, 12, 13 for recognizes whether the electric discharge passes through a predetermined path, and a discriminating structure 14 for discriminates whether the insulator 1 is satisfactory, in accordance with a signal from the path recognizes.Type: GrantFiled: March 17, 1992Date of Patent: October 19, 1993Assignee: Nippondenso Co., LtdInventors: Takahiro Fujimoto, Hiroshi Nakatani
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Patent number: 5184710Abstract: An escalator includes a main frame defining an elongated sloped circulating loop path having an upper load-bearing run and a lower return run and a plurality of steps disposed along the circulating loop path defined by a guide rail mounted to the main frame for guiding the steps. A transmission mechanism is disposed on the steps for transmitting a power from a drive unit. Each of the steps has a pin and a slot formed in an edge portion of the step to extend along the edge portion of the step. One end of a link is pivotally connected to the pin of the step and the other end of the link is slidably engaged by the slot in the link of the neighboring step, whereby the steps are connected together so that the distance between the respective steps can be varied.Type: GrantFiled: January 15, 1991Date of Patent: February 9, 1993Assignee: Mitsubishi Denki Kabushiki KaishaInventor: Hiroshi Nakatani
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Patent number: 5165513Abstract: A circulating circular escalator has a vertically-oriented rotatable cylinder extending between upper and lower floors. An annular stairway having a plurality of steps is disposed about the rotatable cylinder. An annular cam member is disposed around the rotatable cylinder for camming and guiding the steps to move along the stairway, and a landing board extends over each of the upper and lower horizontal runs of the stairway. The stairway includes a lower horizontal run at a lower floor level, an upper horizontal run at an upper floor level, and ascending and descending sloped runs connected between the lower and upper runs. The sloped runs may be used for conveying passengers, or either one of the runs may be used as a return run. The inner sides of the steps are attached to the rotatable cylinder for rotation therewith, the steps each being independently vertically slidable relative to the rotatable cylinder.Type: GrantFiled: March 29, 1990Date of Patent: November 24, 1992Assignee: Mitsubishi Denki Kabushiki KaishaInventor: Hiroshi Nakatani
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Patent number: 5159301Abstract: Disclosed is a piezoelectric resonator device. This piezoelectric resonator device comprises a piezoelectric substrate having an almost rectangular plane shape. The piezoelectric substrate is provided with a slit extending to the inside from one edge of the piezoelectric substrate, for forming a tuning fork portion, a pair of slits for separating the tuning fork portion, spaced apart from the slit forming a tuning fork portion by a predetermined distance on both sides of the slit forming the tuning fork portion, and approximately parallel with the slit forming a tuning fork portion. Vibrating electrodes are formed on both major surfaces of the piezoelectric substrate at a piezoelectric vibrating portion, between the slits separating the tuning fork portion from non-vibrating portions of the substrate.Type: GrantFiled: November 3, 1989Date of Patent: October 27, 1992Assignee: Murata Manufacturing Co., Ltd.Inventors: Hiroaki Kaida, Jiro Inoue, Masatoshi Kajiwara, Hiroshi Nakatani, Katsumi Fujimoto, Katsumi Sakai
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Patent number: 5115899Abstract: A dual-speed escalator apparatus comprises a main frame defining an elongated sloped circulating path, a plurality of steps disposed along the circulating path and dual link assemblies each including a first and a second link. The first and second links each have one end pivotally connected to a front roller shaft on a step, and the other end of the first link has a link roller and is pivotally connected to the other end of the second link on a neighboring step. A front roller guide rail extends along the circulating path, a rear roller guide rail is disposed along the front roller guide rail for maintaining the steps in a predetermined position, and a folding rail is disposed along the front roller guide rail for guiding the link rollers on the dual link assembly and for folding the dual link assembly into a folded position at the end portions of the circulating path.Type: GrantFiled: January 16, 1991Date of Patent: May 26, 1992Assignee: Mitsubishi Denki Kabushiki KaishaInventor: Hiroshi Nakatani
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Patent number: 5084647Abstract: A piezoelectric filter of an energy-trapped type utilizing a second harmonic wave of the thickness-extensional vibration mode, characterized in that an earth electrode is formed around the center of a piezoelectric substrate in the direction of thickness, and an input electrode and an output electrode are formed on one or both major surfaces of the piezoelectric substrate so as to be opposed to the earth electrode.Type: GrantFiled: July 19, 1990Date of Patent: January 28, 1992Assignee: Murata Manufacturing Co., Ltd.Inventors: Jiro Inoue, Masao Gamo, Hiroshi Nakatani
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Patent number: 5065066Abstract: A piezoelectric resonator of an energy-trapped type utilizing a second harmonic wave of the thickness-extensional vibration mode, in which an inner electrode is formed in a position at a height around the center of a piezoelectric substrate in the direction of thickness, outer electrodes are formed on both major surfaces of the piezoelectric substrate so as to be opposed to the inner electrode through a piezoelectric substrate portion, and the dimension of at least one of the outer electrodes in the direction of the length of the inner electrode is made smaller than the dimension of the outer electrode in the direction of the width of the inner electrode.Type: GrantFiled: July 18, 1990Date of Patent: November 12, 1991Assignee: Murata Mfg. Co., Ltd.Inventors: Hiroshi Nakatani, Masao Gamo
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Patent number: 4985663Abstract: A display device includes a display panel having electrodes with a plurality of terminals, a driver circuit having electrodes corresponding to the display panel electrodes, and an anisotropic conductive film for electrically connecting the display panel electrodes with the driver circuit electrodes. The connecting part of each of the driver circuit electrodes to be connected with each of the display panel electrodes includes a first connecting portion and a second connecting portion, where the first connecting portion is more narrow than the second connecting portion.Type: GrantFiled: September 8, 1988Date of Patent: January 15, 1991Assignee: Sharp Kabushiki KaishaInventor: Hiroshi Nakatani
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Patent number: 4862153Abstract: A flat matrix display panel having every side connected to an end of a flexible wiring substrate with an LSI chip loaded thereon. The flexible wiring substrate is formed into an S shape cross section by folding the substrate along an upper and a lower frames. The LSI chip is located near the center of the S-shaped substrate. The other end of the flexible wiring substrate is connected to a PC board which has other circuit components mounted thereon.Type: GrantFiled: May 29, 1987Date of Patent: August 29, 1989Assignee: Sharp Kabushiki KaishaInventors: Hiroshi Nakatani, Hisao Kawaguchi, Shigeo Nakabu
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Patent number: 4809840Abstract: A curved escalator comprises a plurality of segment steps movable along the stairway path, an inner balustrade panel of balustrades vertically disposed along an outer and an inner side of the stairway path, a moving handrail supported by a handrail guide for a guided movement along the balustrade, a skirt guard mounted to the frame work and extending in parallel to a travel path of the steps, and a guide rail for guiding step axles of the steps. The guide rail varies in its radius of curvature and the position of its center of curvature along its length in accordance with the varying slope angle, and the handrail guide varies in its radius of curvature and the position of its center of curvature along its length in correspondence with the radius of curvature and the position of center of curvature of the guide rail.Type: GrantFiled: May 1, 1987Date of Patent: March 7, 1989Assignee: Mitsubishi Denki Kabushiki KaishaInventor: Hiroshi Nakatani
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Patent number: 4806503Abstract: A method for the replacement of semiconductor devices in a multi-chip module that is constructed by mounting semiconductor devices on a tape carrier used as an electrical wiring substrate, wherein when at least one of said semiconductor devices develops a flaw, it is cut away at the finger sections that connect said defective semiconductor device to the tape, and then a different and non-defective semiconductor device having finger sections longer than those of said defective semiconductor device that has been removed is connected to said tape in such a manner that the finger sections of said different and non-defective semiconductor device are joined and connected to the corresponding finger sections retained on said tape.Type: GrantFiled: October 23, 1986Date of Patent: February 21, 1989Assignee: Sharp Kabushiki KaishaInventors: Hirokazu Yoshida, Hiroshi Nakatani, Keiji Yamamura
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Patent number: 4746000Abstract: A curved escalator includes guide tracks for defining a stairway path which includes a constant slope intermediate section, horizontal landing sections, and transient sections smoothly connecting the intermediate section and the landing sections. Each section of differing slope has a differing radius of curvature which when viewed in plan, is inversely proportional to the slope angle, thereby eliminating the need for drive chains to change the distance between the step axles. Turn-around mechanisms that are compact and simple in structure are also disclosed.Type: GrantFiled: December 16, 1985Date of Patent: May 24, 1988Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Hiroshi Nakatani, Makoto Tomidokoro, Hiroshi Yoshikawa
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Patent number: 4710680Abstract: A flat matrix display panel includes a plurality of scanning electrodes, and a plurality of data electrodes formed in a matrix fashion. The data electrodes are divided into two groups, one having terminals on the upper edge of the panel, and the other having terminals on the bottom edge of the panel. A first group data driver LSI is mounted on a substrate in a face-up bonding manner, and is connected to the terminals formed on the upper edge of the panel. A second group data driver LSI, which has the same construction as the first group data driver LSI, is mounted on the same side of the substrate in a facedown bonding manner, and is connected to the terminals formed on the bottom edge of the panel.Type: GrantFiled: March 24, 1987Date of Patent: December 1, 1987Assignee: Sharp Kabushiki KaishaInventors: Hiroshi Nakatani, Hirokazu Yoshida, Keiji Yamamura
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Patent number: 4690510Abstract: There is disclosed a structure of a matrix display unit having a matrix display panel with mutually perpendicular groups of signal and scaning electrodes and a wiring board mounting thereon a driver circuit having output terminals disposed on two marginal edges of the wiring board. At least one of the marginal edges is bent closely toward the matrix display panel. Terminal electrodes of one of the groups of the matrix electrodes are electrically connected to the bent marginal edge in confronting relation through an electrically conductive anisotropic member, terminal electrodes of the other group of the matrix electrodes are electrically connected to the other marginal edge through a bent electrically conductive anisotropy member or a flexible wiring sheet.Type: GrantFiled: December 2, 1985Date of Patent: September 1, 1987Assignee: Sharp Kabushiki KaishaInventors: Toshiaki Takamatsu, Hiroshi Kuwagaki, Shigehiro Minezaki, Kunihiko Yamamoto, Hiroshi Nakatani, Hisao Kawaguchi
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Patent number: 4662502Abstract: A curved escalator comprises a plurality of segment steps movable along the stairway path, an inner balustrade panel of balustrades vertically disposed along an outer and an inner side of the stairway path, a moving handrail supported by a handrail guide for a guided movement along the balustrade, a skirt guard mounted to the frame work and extending in parallel to a travel path of the steps, and a guide rail for guiding step axles of the steps. The guide rail varies in its radius of curvature and the position of its center of curvature along its length in accordance with the varying slope angle, and the handrail guide varies in its radius of curvature and the position of its center of curvature along its length in correspondence with the radius of curvature and the position of center of curvature of the guide rail.Type: GrantFiled: October 10, 1984Date of Patent: May 5, 1987Assignee: Mitsubishi Denki Kabushiki KaishaInventor: Hiroshi Nakatani
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Patent number: 4653065Abstract: A preheating mechanism for use with a duplex electric-arc furnace system is disclosed. The mechanism comprises a car travelling in a direction parallel to the straight line connecting the centers of the two furnaces, and a traversing car that is positioned above said first car and travels in a direction transversal to the direction in which said first car travels, said traversing car being capable of travelling over said first car in said transversal direction until it reaches a position where it overhangs either one of the two furnaces, said traversing car being provided with a raw material preheating combustor and a dust collecting hood in such a manner that each of said combustor and hood can be raised or lowered in the vertical direction.Type: GrantFiled: February 5, 1986Date of Patent: March 24, 1987Assignee: Nippon Steel CorporationInventors: Masahiko Seki, Hiroshi Nakatani, Katsuya Kogumasaka, Seiyu Takao, Isao Arimitsu, Hisanori Fujimori
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Patent number: 4628285Abstract: A 3-terminal oscillating element has a square plate-like piezoelectric body, first and second electrodes provided on one surface of the piezoelectric body and a common electrode provided on the other surface of the piezoelectric body. The piezoelectric body is polarized in one direction between the first and common electrodes and in the opposite direction between the second and common electrode. The 3-terminal oscillating element, when provided in place of a combination of 2-terminal oscillating element and two externally provided capacitors C.sub.1 and C.sub.2 in a Colpitts circuit, substantially satisfies the following equations: ##EQU1## wherein C.sub.01 is an electrostatic capacitance between the first electrode and the counter electrode, C.sub.02 is an electrostatic capacitance between the second electrode and the counter electrode, and n is an transformation ratio of an ideal transformer; and ##EQU2## wherein S.sub.1 and S.sub.2 are areas of first and second electrodes, respectively.Type: GrantFiled: December 27, 1984Date of Patent: December 9, 1986Assignee: Murata Manufacturing Co., Ltd.Inventors: Hiroshi Nakatani, Jiro Inoue, Masashige Miyamori
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Patent number: 4565479Abstract: A raw materials charging device for a preheating furnace including a bucket having a main body, an outer cylinder and an inner cylinder inserted coaxially with the main body in the outer cylinder for vertical movement independently of each other, and a bottom plate split into a plurality of bottom plate sections for movement outwardly from a central portion of the bottom plate to open and close the same.Type: GrantFiled: March 5, 1984Date of Patent: January 21, 1986Assignee: Nippon Steel Corp.Inventors: Masahiko Seki, Hiroshi Nakatani, Shozo Minami, Katsuya Kogumasaka