Patents by Inventor Noriyuki Kawano
Noriyuki Kawano 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: 6340678Abstract: 4,4-difluoro-2,3,4,5-tetrahydro-1H-1-benzoazepine compounds or salts thereof and pharmaceutical compositions containing 4,4-difluoro-2,3,4,5-tetrahydro-1H-1-benzoazepine compounds, or salts thereof, and a pharmaceutically acceptable carrier. The chemical structure of these compounds is characterized by a difluoro group on a ring carbon atom adjacent to an azepine ring carbon atom substituted with a methylidene group. Pharmaceutical compositions containing these compounds are particularly useful as oxytocin antagonists and are effective in inhibiting threatened premature birth or abortion and precesarean birth, and are effective as a remedy for dysmenorrhea and other such conditions.Type: GrantFiled: September 2, 1999Date of Patent: January 22, 2002Assignee: Yamanouchi Pharmaceutical Co., Ltd.Inventors: Akira Matsuhisa, Takeshi Murakami, Shuichi Sakuda, Noriyuki Kawano, Kumiko Shibasaki, Akihiro Tanaka
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Publication number: 20020006090Abstract: Within the same magnetic gap of a magnetic circuit including at least one magnet magnetized in two polarities, there is disposed a coil unit with a focus coil, a tracking coil and a tilt coil mounted thereon.Type: ApplicationFiled: July 13, 2001Publication date: January 17, 2002Applicant: TDK CORPORATIONInventor: Noriyuki Kawano
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Publication number: 20010038581Abstract: An optical pickup comprises an objective-lens driving device including a movable section provided with an objective lens, a focusing coil, and tracking coils, and a fixed section provided with a single magnetic circuit having a magnetic gap, the focusing coil and the tracking coils being disposed in the magnetic gap. The point of application of a tracking-driving force, the point of application of a result force of focusing-driving forces occurring in and outside the magnetic gap, and the position of the center of gravity of the movable section are made to substantially coincide with each other. In addition, the objective lens and the magnetic circuit are disposed within an area of a window in a lower shell of a optical disk. Further, a through hole for accommodating a lower portion of a yoke of the magnetic circuit is provided in a mounting base on which the objective-lens driving device is mounted.Type: ApplicationFiled: July 17, 2001Publication date: November 8, 2001Applicant: TDK CORPORATIONInventors: Noriyuki Kawano, Kouichi Ogura, Yoshio Saito, Mitsuru Kinouchi, Nobuo Uekusa, Hiroyuki Matsurra
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Publication number: 20010028515Abstract: A coil unit on which a focus coil and tracking coils are formed is arranged in a magnetic gap of a magnetic circuit including at least one magnet polarized on two poles in the focusing direction. The magnet and the tracking coils are arranged so that the boundary between the north pole and the south pole of the magnet polarized on two poles in the focusing direction falls within the width formed by the horizontal sides of the tracking coil in the focusing direction, the focusing direction is perpendicular to the focusing direction, when the coil unit is moved in the focusing direction.Type: ApplicationFiled: March 28, 2001Publication date: October 11, 2001Applicant: TDK CORPORATIONInventor: Noriyuki Kawano
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Patent number: 6288984Abstract: An optical pickup comprises an objective-lens driving device including a movable section provided with an objective lens, a focusing coil, and tracking coils, and a fixed section provided with a single magnetic circuit having a magnetic gap, the focusing coil and the tracking coils being disposed in the magnetic gap. The point of application of a tracking-driving force, the point of application of a result force of focusing-driving forces occurring in and outside the magnetic gap, and the position of the center of gravity of the movable section are made to substantially coincide with each other. In addition, the objective lens and the magnetic circuit are disposed within an area of a window in a lower shell of a optical disk. Further, a through hole for accommodating a lower portion of a yoke of the magnetic circuit is provided in a mounting base on which the objective-lens driving device is mounted.Type: GrantFiled: May 23, 2000Date of Patent: September 11, 2001Assignee: TDK CorporationInventors: Noriyuki Kawano, Kouichi Ogura, Yoshio Saito, Mitsuru Kinouchi, Nobuo Uekusa, Hiroyuki Matsuura
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Patent number: 6285517Abstract: An objective lens driver in which a movable portion 1 with an objective lens 11 is supported on a fixed portion by two groups of elastic supporting members each being horizontally bent which are disposed on both sides of the objective lens 11 such that each group of elastic supporting members are vertically arranged on each side of the objective lens, and the upper elastic supporting members of the groups of elastic supporting members are spaced from each other horizontally, is improved such that each group of elastic supporting members vertically arranged on each side of the objective lens are not parallel to each other. Further, damping material are fixedly disposed between both ends of the elastic supporting members and stuck onto the elastic supporting members, and the amount of the damping material on one side of the objective lens is different from that of the damping material on the other side of the objective lens, and a method of manufacturing the objective lens driver.Type: GrantFiled: November 1, 2000Date of Patent: September 4, 2001Assignee: TDK CorporationInventors: Nobuo Uekusa, Yasuhiro Terasaki, Noriyuki Kawano
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Patent number: 6163416Abstract: An objective lens driver in which a movable portion 1 with an objective lens 11 is supported on a fixed portion by two groups of elastic supporting members each being horizontally bent which are disposed on both sides of the objective lens 11 such that each group of elastic supporting members are vertically arranged on each side of the objective lens, and the upper elastic supporting members of the groups of elastic supporting members are spaced from each other horizontally, is improved such that each group of elastic supporting members vertically arranged on each side of the objective lens are not parallel to each other. Further, damping material are fixedly disposed between both ends of the elastic supporting members and stuck onto the elastic supporting members, and the amount of the damping material on one side of the objective lens is different from that of the damping material on the other side of the objective lens, and a method of manufacturing the objective lens driver.Type: GrantFiled: April 23, 1999Date of Patent: December 19, 2000Assignee: TDK CorporationInventors: Nobuo Uekusa, Yasuhiro Terasaki, Noriyuki Kawano
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Patent number: 6160771Abstract: An objective lens drive device has a movable section which has an objective lens and is supported by wires extended from a stationary section, and the wires which are positioned by guide holes formed in the movable section or stationary section. In the device, the wires are fixedly positioned in such a manner that the wires are in contact with the inner walls of the guide holes.Type: GrantFiled: February 11, 1998Date of Patent: December 12, 2000Assignee: TDK CorporationInventors: Noriyuki Kawano, Nobuo Uekusa, Yasuhiro Terasaki
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Patent number: 6084834Abstract: An optical pickup includes an objective-lens driving device including a movable section provided with an objective lens, a focusing coil, and tracking coils, and a fixed section provided with a single magnetic circuit having a magnetic gap, the focusing coil and the tracking coils being disposed in the magnetic gap. The point of application of a tracking-driving force, the point of application of a result force of focusing-driving forces occurring in and outside the magnetic gap, and the position of the center of gravity of the movable section are made to substantially coincide with each other. In addition, the objective lens and the magnetic circuit are disposed within an area of a window in a lower shell of a optical disk. Further, a through hole for accommodating a lower portion of a yoke of the magnetic circuit is provided in a mounting base on which the objective-lens driving device is mounted.Type: GrantFiled: December 19, 1997Date of Patent: July 4, 2000Assignee: TDK CorporationInventors: Noriyuki Kawano, Kouichi Ogura, Yoshio Saito, Mitsuru Kinouchi
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Patent number: 5877904Abstract: An optical pickup comprises an objective-lens driving device including a movable section provided with an objective lens, a focusing coil, and tracking coils, and a fixed section provided with a single magnetic circuit having a magnetic gap, the focusing coil and the tracking coils being disposed in the magnetic gap. The point of application of a tracking-driving force, the point of application of a result force of focusing-driving forces occurring in and outside the magnetic gap, and the position of the center of gravity of the movable section are made to substantially coincide with each other. In addition, the objective lens and the magnetic circuit are disposed within an area of a window in a lower shell of a optical disk. Further, a through hole for accommodating a lower portion of a yoke of the magnetic circuit is provided in a mounting base on which the objective-lens driving device is mounted.Type: GrantFiled: July 3, 1997Date of Patent: March 2, 1999Assignee: TDK CorporationInventors: Noriyuki Kawano, Mitsuru Kinouchi, Nobuo Uekusa, Hiroyuki Matsuura
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Patent number: 5724337Abstract: An optical pickup comprises an objective-lens driving device including a movable section provided with an objective lens, a focusing coil, and tracking coils, and a fixed section provided with a single magnetic circuit having a magnetic gap, the focusing coil and the tracking coils being disposed in the magnetic gap. The point of application of a tracking-driving force, the point of application of a result force of focusing-driving forces occurring in and outside the magnetic gap, and the position of the center of gravity of the movable section are made to substantially coincide with each other. In addition, the objective lens and the magnetic circuit are disposed within an area of a window in a lower shell of a optical disk. Further, a through hole for accommodating a lower portion of a yoke of the magnetic circuit is provided in a mounting base on which the objective-lens driving device is mounted.Type: GrantFiled: February 27, 1997Date of Patent: March 3, 1998Assignee: TDK CorporationInventors: Noriyuki Kawano, Kouichi Ogura, Yoshio Saito, Mitsuru Kinouchi, Nobuo Uekusa, Hiroyuki Matsuura