Patents by Inventor Akio Ishii
Akio Ishii 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: 7149075Abstract: There is a solid electrolytic capacitor having a low ESR characteristic. In accordance with the solid electrolytic capacitor using an capacitor element wherein solid electrolyte is formed, the post-etching void factor of the anode foil used for the capacitor element is set at not more than 51% or the post-etching void factor of the cathode foil used for the capacitor element is set at not more than 44%, so that an electrode foil increases in conductivity and decreases in resistivity, to thereby obtain, coupled with the solid electrolyte of a low resistivity, a solid electrolytic capacitor having a lower ESR characteristic.Type: GrantFiled: December 5, 2005Date of Patent: December 12, 2006Assignee: Nippon Chemi-Con Corp.Inventors: Kazuhiro Higuchi, Akihiro Inoue, Akio Ishii, Kazuhiro Saegusa, Kazuhiro Hatanaka
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Patent number: 7099144Abstract: There is a solid electrolytic capacitor having a low ESR characteristic. In accordance with the solid electrolytic capacitor using an capacitor element wherein solid electrolyte is formed, the post-etching void factor of the anode foil used for the capacitor element is set at not more than 51% or the post-etching void factor of the cathode foil used for the capacitor element is set at not more than 44%, so that an electrode foil increases in conductivity and decreases in resistivity, to thereby obtain, coupled with the solid electrolyte of a low resistivity, a solid electrolytic capacitor having a lower ESR characteristic.Type: GrantFiled: May 30, 2002Date of Patent: August 29, 2006Assignee: Nippon Chemi-Con CorporationInventors: Kazuhiro Higuchi, Akihiro Inoue, Akio Ishii, Kazuhiro Saegusa, Kazuhiro Hatanaka
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Publication number: 20060139851Abstract: There is a solid electrolytic capacitor having a low ESR characteristic. In accordance with the solid electrolytic capacitor using an capacitor element wherein solid electrolyte is formed, the post-etching void factor of the anode foil used for the capacitor element is set at not more than 51% or the post-etching void factor of the cathode foil used for the capacitor element is set at not more than 44%, so that an electrode foil increases in conductivity and decreases in resistivity, to thereby obtain, coupled with the solid electrolyte of a low resistivity, a solid electrolytic capacitor having a lower ESR characteristic.Type: ApplicationFiled: December 5, 2005Publication date: June 29, 2006Inventors: Kazuhiro Higuchi, Akihiro Inoue, Akio Ishii, Kazuhiro Saegusa, Kazuhiro Hatanaka
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Patent number: 7054140Abstract: There are provided a solid electrolytic capacitor having a low ESR characteristic and an electrode foil to be used for this electrolytic capacitor. In accordance with the present invention, a capacitor element uses an anode foil with a post-etching void factor of not more than 51% or a cathode foil with another post-etching void factor of not more than 44%, wherein the capacitor element contains a solvent consisting mainly of a water and a water-soluble metal complex being bonded with phosphoric acid ions, whereby the electrode foil increases in conductivity and decreases in resistivity, while an electrolytic solution thereof has a low resistivity, to thereby obtain the solid electrolytic capacitor having the low ESR characteristic and the electrode foil to be used therefor.Type: GrantFiled: May 30, 2002Date of Patent: May 30, 2006Assignee: Nippon Chemi-Con Corp.Inventors: Masashi Ozawa, Tatsunori Tsuji, Akio Ishii, Kazuhiro Saegusa, Kazuhiro Higuchi, Akihiro Inoue
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Patent number: 6875716Abstract: A carbonaceous refractory material is produced by adding an organic binder to a mixture containing a carbonaceous material comprising a carbonaceous raw material comprising calcined anthracite, calcined coke, artificial graphite or natural graphite or a mixture thereof at 50 to 85% as the principal raw material, alumina particle at 5 to 15%, metal silicon particle at 5 to 15%, and one or two or more of titanium carbide powder, titanium nitride powder and titanium carbonitride powder at 5 to 20% in total, kneading and molding the resulting mixture and baking the molded article under non-oxidizing atmosphere. By using the carbonaceous refractory material as the inner lining material for the side wall and bottom of blast furnace hearth, the consumption of the inner lining material due to the dissolution thereof in melted pig iron can be decreased, and simultaneously, the abrasion due to the flow of melted pig iron can be decreased, which works to prolong the life of the blast furnace.Type: GrantFiled: March 30, 2001Date of Patent: April 5, 2005Assignees: Nippon Steel Corporation, Nippon Electrode Company, Ltd.Inventors: Akio Ishii, Hitoshi Nakamura, Michio Nitta, Tsutomu Wakasa, Hirofumi Mikami, Yoshiyuki Yamagami
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Publication number: 20040212950Abstract: There are provided a solid electrolytic capacitor having a low ESR characteristic and an electrode foil to be used for this electrolytic capacitor. In accordance with the present invention, a capacitor element uses an anode foil with a post-etching void factor of not more than 51% or a cathode foil with another post-etching void factor of not more than 44%, wherein the capacitor element contains a solvent consisting mainly of a water and a water-soluble metal complex being bonded with phosphoric acid ions, whereby the electrode foil increases in conductivity and decreases in resistivity, while an electrolytic solution thereof has a low resistivity, to thereby obtain the solid electrolytic capacitor having the low ESR characteristic and the electrode foil to be used therefor.Type: ApplicationFiled: December 1, 2003Publication date: October 28, 2004Inventors: Masashi Ozawa, Tatsunori Tsuji, Akio Ishii, Kazuhiro Saegusa, Kazuhiro Higuchi, Akihiro Inoue
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Publication number: 20040156150Abstract: There is a solid electrolytic capacitor having a low ESR characteristic. In accordance with the solid electrolytic capacitor using an capacitor element wherein solid electrolyte is formed, the post-etching void factor of the anode foil used for the capacitor element is set at not more than 51% or the post-etching void factor of the cathode foil used for the capacitor element is set at not more than 44%, so that an electrode foil increases in conductivity and decreases in resistivity, to thereby obtain, coupled with the solid electrolyte of a low resistivity, a solid electrolytic capacitor having a lower ESR characteristic.Type: ApplicationFiled: December 1, 2003Publication date: August 12, 2004Inventors: Kazuhiro Higuchi, Akihiro Inoue, Akio Ishii, Kazuhiro Saegusa
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Publication number: 20020183189Abstract: A carbonaceous refractory material is produced by adding an organic binder to a mixture containing a carbonaceous material comprising a carbonaceous raw material comprising calcined anthracite, calcined coke, artificial graphite or natural graphite or a mixture thereof at 50 to 85% as the principal raw material, alumina particle at 5 to 15%, metal silicon particle at 5 to 15%, and one or two or more of titanium carbide powder, titanium nitride powder and titanium carbonitride powder at 5 to 20% in total, kneading and molding the resulting mixture and baking the molded article under non-oxidizing atmosphere. By using the carbonaceous refractory material as the inner lining material for the side wall and bottom of blast furnace hearth, the consumption of the inner lining material due to the dissolution thereof in melted pig iron can be decreased, and simultaneously, the abrasion due to the flow of melted pig iron can be decreased, which works to prolong the life of the blast furnace.Type: ApplicationFiled: November 28, 2001Publication date: December 5, 2002Inventors: Akio Ishii, Hitoshi Nakamura, Michio Nitta, Tsutomu Wakasa, Hirofumi Mikami, Yoshiyuki Yamagami
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Publication number: 20020115386Abstract: The present invention provides a method of grinding an optical fiber connector such that the end faces of optical fibers to be held by the optical fiber connector extends externally from the end face of said optical fiber connector, comprising a step of grinding the end faces of the optical fibers while applying a grinding liquid containing a grinding material and alcohol onto a grinding sheet.Type: ApplicationFiled: May 24, 2001Publication date: August 22, 2002Inventors: Takashi Iijima, Akio Ishii, Katsuki Suematsu, Kunio Yamada, Takehiko Narita
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Patent number: 5756735Abstract: The present invention relates to novel xanthine derivatives of the formula (I) which are selectively antagonistic to an adenosine A.sub.2 receptor, and pharmaceutically acceptable salts thereof. Formula (I): ##STR1## In the formula, R.sup.1 and R.sup.2 are the same or different and each represents a hydrogen atom, a propyl group, a butyl group or an allyl group; R.sup.3 represents a hydrogen atom or a lower alkyl group; Y.sup.1 and Y.sup.2 are the same or different and each represents a hydrogen atom or a methyl group; and Z represents a substituted or unsubstituted phenyl group, a pyridyl group, an imidazolyl group, a furyl group or a thienyl group.Type: GrantFiled: June 7, 1995Date of Patent: May 26, 1998Assignee: Kyowa Hakko Kogyo Co., Ltd.Inventors: Fumio Suzuki, Akio Ishii, Hiromi Nonaka, Nobuo Kosaka, Shunji Ichikawa, Junichi Shimada
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Patent number: 5587378Abstract: Methods for the treatment of Parkinson's disease comprising administering to a patient an agent which contains, as an active ingredient, a xanthine derivative or a pharmaceutically acceptable salt thereof. The xanthine derivative is represented by the formula: ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are independently hydrogen, lower alkyl, lower alkenyl, or lower alkynyl; and R.sup.4 is cycloalkyl, --(CH.sub.2).sub.n --R.sup.5, wherein R.sup.5 represents substituted or unsubstituted aryl or a substituted or unsubstituted heterocyclic group; and n is an integer of 0 to 4, or ##STR2## wherein Y.sup.1 and Y.sup.2 represent independently hydrogen, halogen, or lower alkyl; and Z is substituted or unsubstituted aryl, ##STR3## wherein R.sup.6 is hydrogen, hydroxy, lower alkyl, lower alkoxy, halogen, nitro, or amino; and m is an integer of 1 to 4, or a substituted or unsubstituted heterocyclic group; and X.sup.1 and X.sup.2 are independently O or S.Type: GrantFiled: May 23, 1995Date of Patent: December 24, 1996Assignee: Kyowa Hakko Kogyo Co., Ltd.Inventors: Fumio Suzuki, Junichi Shimada, Nobuaki Koike, Joji Nakamura, Shizuo Shiozaki, Shunji Ichikawa, Akio Ishii, Hiromi Nonaka
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Patent number: 5546123Abstract: An automatic steering device is presented for controlling the direction of travel of an asphalt finisher during a paving operation. The device is provided with a laser generator (18) which projects a laser beam of a slit shape on a series of objects along the roadside which is selected to served as a reference line (A). An image recording device (17), a CCD camera, is disposed on the vehicle member (2), which records the projected laser light illuminating the objects and outputs a generated image (Ba) to a master controller (22). The master controller (22) determines the current deviation of the vehicle member (2) from the reference line (A) by the changes in the position of the generated image (Ba), and operates the automatic control device so as to steer the vehicle member (2) in the correct direction to permit the asphalt finisher to follow the reference line (A).Type: GrantFiled: April 6, 1994Date of Patent: August 13, 1996Assignee: Niigata Engineering Co. Ltd.Inventors: Hachiro Ikeda, Noriaki Miyamoto, Ryoei Umeda, Hidenori Yasu, Mitsuo Fukukawa, Yukiei Masuyama, Shoji Kinoshita, Yukio Takagi, Tomohiro Gocho, Fumio Goto, Akio Ishii, Tetsuo Ogawa, Yoshun Hasegawa, Keitaro Hironaka, Yasuhiro Ogoshi
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Patent number: 5543415Abstract: The present invention relates to an antidepressant containing as an active ingredient a xanthine derivative or a pharmaceutically acceptable salt thereof, the xanthine derivative being represented by Formula (I) : ##STR1## in which R.sup.1, R.sup.2, and R.sup.3 represent independently hydrogen, lower alkyl, lower alkenyl;R.sup.4 represents cycloalkyl, --(CH.sub.2).sub.n --R.sup.5 (in which R.sup.5 represents substituted or unsubstituted aryl or a substituted or unsubstituted heterocyclic group; and n is an integer of 0 to 4), or ##STR2## (in which Y.sup.1 and Y.sup.2 represent independently hydrogen, halogen or lower alkyl; and Z represents substituted or unsubstituted aryl, ##STR3## (in which R.sup.6 represents hydrogen, hydroxy, lower alkyl, lower alkoxy, halogen, nitro, or amino; and m represents an integer of 1 to 3), or a substituted or unsubstituted heterocyclic group);and X.sup.1 and X.sup.2 represent independently O or S.Type: GrantFiled: February 25, 1994Date of Patent: August 6, 1996Assignee: Kyowa Hakko Kogyo Co., Ltd.Inventors: Fumio Suzuki, Junichi Shimada, Akio Ishii, Joji Nakamura, Shunji Ichikawa, Shigeto Kitamura, Nobuaki Koike
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Patent number: 5525607Abstract: Novel xanthine compounds represented by the following formula: ##STR1## wherein each of R.sup.1, R.sup.2 and R.sup.3 independently represents hydrogen or lower alkyl;each of X.sup.1 and X.sup.2 independently represents oxygen or sulfur; and Q represents: ##STR2## The compounds are useful as a diuretic, a renal-protecting agent and bronchodilator.Type: GrantFiled: May 20, 1993Date of Patent: June 11, 1996Assignee: Kyowa Hakko Kogyo Co., LtdInventors: Fumio Suzuki, Junichi Shimada, Akio Ishii, Tetsuji Ohno, Akira Karasawa, Kazuhiro Kubo, Hiromi Nonaka, Fumio Suzuki, Junichi Shimada, Akio Ishii, Tetsuji Ohno, Akira Karasawa, Kazuhiro Kubo, Hiromi Nonaka
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Patent number: 5523464Abstract: The present invention relates to benzenesulfonamide derivatives represented by Formula (I): ##STR1## in which R.sup.1 and R.sup.2 independently represent hydrogen or lower alkanoyl; and R.sup.3 and R.sup.4 independently represent hydrogen, lower alkyl, cycloalkyl, substituted or unsubstituted polycycloalkyl, substituted aryl, or a substituted or unsubstituted heterocyclic group, or R.sup.3 and R.sup.4 are combined together with the adjacent nitrogen atom to form a substituted or unsubstituted aliphatic heterocyclic group, or a pharmaceutically acceptable salt thereof. The derivatives are useful as therapeutic agents for osteoporosis.Type: GrantFiled: June 30, 1994Date of Patent: June 4, 1996Assignee: Kyowa Hakko Kogyo Co., Ltd.Inventors: Iwao Kinoshita, Haruki Takai, Nobuo Kosaka, Katsura Sugawara, Akio Ishii, Hiroyuki Ishida, Katsushige Gomi
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Patent number: 5523685Abstract: The present invention is a measuring method for detecting penetrant metal intruded in refractories having a conductive cover at a first wall and a nonconductive surface at a second wall and for measuring their thickness. At least one sensor head is used including a metal sensor with a first and second conductive coil for measuring distance between the sensor head and a conductive substance and a distance sensor for measuring distance between the sensor head and the refractories. The sensor head is disposed at a plurality of fixed positions close to the second wall to face the refractories and an alternating current is applied to the first coil to generate an eddy current in the conductive substance which faces the metal sensor. An induced voltage induced in the second coil by at least the eddy current is detected and a first distance is obtained between the sensor head and the conductive substance based on the detected induced voltage.Type: GrantFiled: February 8, 1993Date of Patent: June 4, 1996Assignee: Nippon Steel CorporationInventors: Kiyoto Kasai, Akio Ishii, Keisuke Asano, Shiro Sukenari
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Patent number: 5484920Abstract: Agents for the treatment of Parkinson's disease contain, as an active ingredient, a xanthine derivative or a pharmaceutically acceptable salt thereof. The xanthine derivative is represented by the formula: ##STR1## in which R.sup.1, R.sup.2 are R.sup.3 are independently hydrogen, lower alkyl, lower alkenyl, or lower alkynyl; and R.sup.4 represents cycloalkyl, --(CH.sub.2).sub.n --R.sup.5 (in which R.sup.5 represents substituted or unsubstituted aryl or a substituted or unsubstituted heterocyclic group; and n is an integer of 0 to 4), or ##STR2## in which Y.sup.1 and Y.sup.2 represent independently hydrogen, halogen, or lower alkyl; and Z represents substituted or unsubstituted aryl, ##STR3## in which R.sup.6 represents hydrogen, hydroxy, lower alkyl, lower alkoxy, halogen, nitro, or amino; and m represents an integer of 1 to 4, or a substituted or unsubstituted heterocyclic group; and X.sup.1 and X.sup.2 represent independently O or S.Type: GrantFiled: October 7, 1993Date of Patent: January 16, 1996Assignee: Kyowa Hakko Kogyo Co., Ltd.Inventors: Fumio Suzuki, Junichi Shimada, Nobuaki Koike, Joji Nakamura, Shizuo Shioazaki, Shunji Ichikawa, Akio Ishii, Hiromi Nonaka
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Patent number: 5484227Abstract: Efficient paving operation requires that the levelling operation of asphalt be carried out accurately along a reference line which follows a given direction along a roadside. A simple and effective automatic control device for controlling the steering direction in conjunction with adjustments of the screed for an asphalt finisher (shortened to finisher) is presented. The control device automatically regulates the extension or retraction of the screeds on both sides of the finisher in reference to a visual display of the reference line following some objects along the roadside. The visual detection system of control is simple and economical and provides an accurate control over the direction of paving.Type: GrantFiled: April 6, 1994Date of Patent: January 16, 1996Assignees: Niigata Engineering Co., Ltd., The Nippon Road Co., Ltd.Inventors: Hachiro Ikeda, Noriaki Miyamoto, Ryoei Umeda, Hidenori Yasu, Mitsuo Fukukawa, Yukiei Masuyama, Shoji Kinoshita, Yukio Takagi, Tomohiro Gocho, Fumio Goto, Akio Ishii, Tetsuo Ogawa, Yoshun Hasegawa, Keitaro Hironaka, Yasuhiro Ogoshi
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Patent number: 5447933Abstract: A novel xanthine derivative of the formula (I): ##STR1## wherein one of R.sup.1 and R.sup.2 represents substituted or unsubstituted lower alkyl, lower alkenyl, lower alkynyl, substituted or unsubstituted alicyclic alkyl, substituted or unsubstituted phenyl, or substituted or unsubstituted benzyl; and the other represents--(CH.sub.2).sub.m --Xwherein m is 2 or 3, and X is amino substituted phenyl.Q represents ##STR2## (wherein R.sup.3 and R.sup.4 are the same or different and are substituted or unsubstituted alicyclic alkyl), ##STR3## or a pharmacologically accetable salt thereof is disclosed. This derivative has anti-dementia activity.Type: GrantFiled: November 9, 1992Date of Patent: September 5, 1995Assignee: Kyowa Hakko Kogyo Co., Ltd.Inventors: Fumio Suzuki, Junichi Shimada, Hiromasa Kato, Akio Ishii, Shizuo Shiozaki
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Patent number: 5413997Abstract: A triphenylmethane derivative represented by the following general formula: ##STR1## exhibits bone absorption inhibiting effects and is useful as a medicament for treating osteoporosis.Type: GrantFiled: January 21, 1993Date of Patent: May 9, 1995Assignee: Kyowa Hakko Kogyo Co., Ltd.Inventors: Iwao Kinoshita, Daisuke Machii, Yasuo Onoda, Haruki Takai, Nobuo Kosaka, Katsuichi Shuto, Katsushige Gomi, Makoto Morimoto, Akio Ishii