Patents by Inventor Shigehiro Itou
Shigehiro Itou 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: 6993780Abstract: Of an integrated type leaf spring, a first abutting portion of first leaf spring portion of a narrow spring piece abuts against the bottom surface of a disk motor base to apply reactive force of the first leaf spring portion to the disk motor base. At the same time, a second abutting portion of a second leaf spring portion abuts against the top surface of a mechanical chassis base to apply reactive force of the second leaf spring portion to the mechanical chassis base. Reactive force of the narrow spring piece becomes the sum of the reactive force of the first leaf spring portion and the reactive force of the second leaf spring portion.Type: GrantFiled: April 4, 2003Date of Patent: January 31, 2006Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Takeshi Inatani, Shigehiro Itou
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Patent number: 6941566Abstract: A disk system miniaturized by sharing moving spaces of a disk clamper portion and a disk operating portion. The disk system includes a disk clamper portion (300) for holding a disk (R), the disk clamper portion (300) being provided in such a manner as to be movable substantially in parallel to a disk carrying path (102) on which the disk (R) is carried in a range from one end to the other end of the disk carrying path (102); and a disk operating portion (400) for rotating the disk (R), the disk operating portion (400) being provided in such a manner as to be movable substantially in parallel to the disk carrying path (102) in a range from one end to the other end of the disk carrying path (102).Type: GrantFiled: February 27, 1998Date of Patent: September 6, 2005Assignees: Mitsubishi Electric Engineering Company Limited, Mitsubishi Denki Kabushiki KaishaInventors: Hidetaka Watanabe, Shigehiro Itou, Takashi Matsuda, Yoshisada Ishimoto
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Patent number: 6842907Abstract: A MD loading mechanism for a multidisk MD reproducing apparatus capable of storing a plurality of MDs and of reproducing information recorded on the plurality of MDs successively comprises: a plurality of cartridge holders for holding MD cartridges therein, respectively; a MD cartridge storage unit for storing the plurality of cartridge holders therein in a stack so that the back end surfaces of the MD cartridges held within the cartridge holders can be seen from outside, provided with a plurality of insertion slots through which the MD cartridges are inserted in the cartridge holders and cartridge holder locking means for locking the cartridge holders within the MD cartridge storage unit; and a cartridge holder transfer means for transferring the cartridge holder holding a desired MD cartridge from the MD cartridge storage unit to the MD reproducing apparatus.Type: GrantFiled: April 14, 2003Date of Patent: January 11, 2005Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Yasuyuki Nakanishi, Koutarou Oka, Kei Shirahata, Shigehiro Itou, Tatsunori Fujiwara
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Patent number: 6760914Abstract: A MD loading mechanism for a multidisk MD reproducing apparatus capable of storing a plurality of MDs and of reproducing information recorded on the plurality of MDs successively comprises: a plurality of cartridge holders for holding MD cartridges therein, respectively; a MD cartridge storage unit for storing the plurality of cartridge holders therein in a stack so that the back end surfaces of the MD cartridges held within the cartridge holders can be seen from outside, provided with a plurality of insertion slots through which the MD cartridges are inserted in the cartridge holders and cartridge holder locking means for locking the cartridge holders within the MD cartridge storage unit; and a cartridge holder transfer means for transferring the cartridge holder holding a desired MD cartridge from the MD cartridge storage unit to the MD reproducing apparatus.Type: GrantFiled: January 23, 2002Date of Patent: July 6, 2004Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Yasuyuki Nakanishi, Koutarou Oka, Kei Shirahata, Shigehiro Itou, Tatsunori Fujiwara
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Publication number: 20030235143Abstract: Of an integrated type leaf spring, a first abutting portion of first leaf spring portion of a narrow spring piece abuts against the bottom surface of a disk motor base to apply reactive force of the first leaf spring portion to the disk motor base. At the same time, a second abutting portion of a second leaf spring portion abuts against the top surface of a mechanical chassis base to apply reactive force of the second leaf spring portion to the mechanical chassis base. Reactive force of the narrow spring piece becomes the sum of the reactive force of the first leaf spring portion and the reactive force of the second leaf spring portion.Type: ApplicationFiled: April 4, 2003Publication date: December 25, 2003Inventors: Takeshi Inatani, Shigehiro Itou
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Publication number: 20030174592Abstract: A MD loading mechanism for a multidisk MD reproducing apparatus capable of storing a plurality of MDs and of reproducing information recorded on the plurality of MDs successively comprises: a plurality of cartridge holders for holding MD cartridges therein, respectively; a MD cartridge storage unit for storing the plurality of cartridge holders therein in a stack so that the back end surfaces of the MD cartridges held within the cartridge holders can be seen from outside, provided with a plurality of insertion slots through which the MD cartridges are inserted in the cartridge holders and cartridge holder locking means for locking the cartridge holders within the MD cartridge storage unit; and a cartridge holder transfer means for transferring the cartridge holder holding a desired MD cartridge from the MD cartridge storage unit to the MD reproducing apparatus.Type: ApplicationFiled: April 14, 2003Publication date: September 18, 2003Applicant: Mitsubish Denki Kabushiki KaishaInventors: Yasuyuki Nakanishi, Koutarou Oka, Kei Shirahata, Shigehiro Itou, Tatsunori Fujiwara
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Publication number: 20020064103Abstract: A MD loading mechanism for a multidisk MD reproducing apparatus capable of storing a plurality of MDs and of reproducing information recorded on the plurality of MDs successively comprises: a plurality of cartridge holders for holding MD cartridges therein, respectively; a MD cartridge storage unit for storing the plurality of cartridge holders therein in a stack so that the back end surfaces of the MD cartridges held within the cartridge holders can be seen from outside, provided with a plurality of insertion slots through which the MD cartridges are inserted in the cartridge holders and cartridge holder locking means for locking the cartridge holders within the MD cartridge storage unit; and a cartridge holder transfer means for transferring the cartridge holder holding a desired MD cartridge from the MD cartridge storage unit to the MD reproducing apparatus.Type: ApplicationFiled: January 23, 2002Publication date: May 30, 2002Applicant: Mitsubishi Denki Kabushiki KaishaInventors: Yasuyuki Nakanishi, Koutarou Oka, Kei Shirahata, Shigehiro Itou, Tatsunori Fujiwara
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Patent number: 6392981Abstract: A disk system capable of sharing portions at which disks are disposed, thereby miniaturizing the entire structure of the system. The disk system includes a plurality of stockers for containing disks in such a manner as to substantially align rotational axial lines of the disks to each other. The disk system also includes a stocker moving mechanism for moving the stockers to specific positions. The disk system also includes a disk driving mechanism for rotating the disks contained in the stockers.Type: GrantFiled: October 15, 1998Date of Patent: May 21, 2002Assignees: Mitsubishi Electric Engineering Company Limited, Mitsubishi Denki Kabushiki KaishaInventors: Hidetaka Watanabe, Shigehiro Itou, Takashi Matsuda, Yoshisada Ishimoto
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Patent number: 6359854Abstract: A MD loading mechanism for a multidisk MD reproducing apparatus capable of storing a plurality of MDs and of reproducing information recorded on the plurality of MDs successively comprises: a plurality of cartridge holders for holding MD cartridges therein, respectively; a MD cartridge storage unit for storing the plurality of cartridge holders therein in a stack so that the back end surfaces of the MD cartridges held within the cartridge holders can be seen from outside, provided with a plurality of insertion slots through which the MD cartridges are inserted in the cartridge holders and cartridge holder locking means for locking the cartridge holders within the MD cartridge storage unit; and a cartridge holder transfer means for transferring the cartridge holder holding a desired MD cartridge from the MD cartridge storage unit to the MD reproducing apparatus.Type: GrantFiled: April 30, 1999Date of Patent: March 19, 2002Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Yasuyuki Nakanishi, Koutarou Oka, Kei Shirahata, Shigehiro Itou, Tatsunori Fujiwara
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Publication number: 20010043519Abstract: A disk system miniaturized by sharing moving spaces of a disk damper portion and a disk operating portion. The disk system includes a disk damper portion (300) for holding a disk (R), the disk damper portion (300) being provided in such a manner as to be movable substantially in parallel to a disk carrying path (102) on which the disk (R) is carried in a range from one end to the other end of the disk carrying path (102); and a disk operating portion (400) for rotating the disk (R), the disk operating portion (400) being provided in such a manner as to be movable substantially in parallel to the disk carrying path (102) in a range from one end to the other end of the disk carrying path (102).Type: ApplicationFiled: October 22, 1998Publication date: November 22, 2001Inventors: HIDETAKA WATANABE, SHIGEHIRO ITOU, TAKASHI MATSUDA, YOSHISADA ISHIMOTO
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Publication number: 20010040856Abstract: A disk system capable of sharing portions at which disks are disposed, thereby miniaturizing the entire structure of the system.Type: ApplicationFiled: October 15, 1998Publication date: November 15, 2001Inventors: HIDETAKA WATANABE, SHIGEHIRO ITOU, TAKASHI MATSUDA, YOSHISADA ISHIMOTO
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Patent number: 6256279Abstract: A disk system capable of preventing a disk from being damaged. The disk system includes an upper disk roller (201) and a lower disk roller (202) provided at a disk insertion port of a housing (100), and a roller open cam plate (203) for adjusting a magnitude of a gap (d2, d3, d4) between the upper disk roller (201) and the lower disk roller (202).Type: GrantFiled: October 19, 1998Date of Patent: July 3, 2001Assignees: Mitsubishi Electric Engineering Company Limited, Mitsubishi Denki Kabushiki KaishaInventors: Hidetaka Watanabe, Shigehiro Itou, Takashi Matsuda, Yoshisada Ishimoto
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Patent number: 5953307Abstract: A MD loading mechanism for a multidisk MD reproducing apparatus capable of storing a plurality of MDs and of reproducing information recorded on the plurality of MDs successively comprises: a plurality of cartridge holders for holding MD cartridges therein, respectively; a MD cartridge storage unit for storing the plurality of cartridge holders therein in a stack so that the back end surfaces of the MD cartridges held within the cartridge holders can be seen from outside, provided with a plurality of insertion slots through which the MD cartridges are inserted in the cartridge holders and cartridge holder locking means for locking the cartridge holders within the MD cartridge storage unit; and a cartridge holder transfer means for transferring the cartridge holder holding a desired MD cartridge from the MD cartridge storage unit to the MD reproducing apparatus.Type: GrantFiled: January 7, 1997Date of Patent: September 14, 1999Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Yasuyuki Nakanishi, Koutarou Oka, Kei Shirahata, Shigehiro Itou, Tatsunori Fujiwara
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Patent number: 5831962Abstract: An optical pickup carrying system includes a base on which a turn table can be disposed rotatably for placing a disk thereon, an optical pickup movably disposed in the base for reading a signal recorded on the disk, a guide rail disposed in the base and provided with sliding surfaces on which a level positioning member secured to the optical pickup and a plate spring can slide, respectively, for guiding and supporting the optical pickup in cooperation with the level positioning member and plate spring when the optical pickup moves, and a groove formed in the sliding surface for storing grease.Type: GrantFiled: January 3, 1997Date of Patent: November 3, 1998Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Tsunemi Sakai, Shigehiro Itou, Naohiko Obata
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Patent number: 5663850Abstract: In an auto-changer device performing sequential reproduction by loading multiple cartridges each of which has an internal disk, a cartridge handler includes a plurality of holders which hold a cartridge; a plurality of pins asymmetrically fixed to the holder; guide plates having guide grooves for guiding the pins; and a loading hook, which engages and holds a cartridge and which is driven by the force exerted by a spring that also ejects the cartridge, whereby the structure of a cartridge changer can be simplified so that it is not required that the carrier have a plurality of holding functions and the carrier can be moved up and down at the unloading completion position, and the operational time can be shortened.Type: GrantFiled: October 11, 1995Date of Patent: September 2, 1997Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Yasuyuki Nakanishi, Koutarou Oka, Kei Shirahata, Shigehiro Itou, Tatsunori Fujiwara
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Patent number: 5587989Abstract: A cartridge changing apparatus according to the present invention includes a plurality of holders, each holding a cartridge with a disc inserted therein, a pair of base carriers each having a gripping portion for gripping a pin fixed to one of the plurality of holders and each engaged with one of a pair of screw shafts so as to be able to move back and forth as the screw shafts are rotated, and a pair of slide carriers which are combined with the base carriers and can be moved on the screw shafts together with the base carriers, respectively. Cartridges are replaced by the back and forth movement of the pair of the carriers. Consequently, it is possible to simplify the carrier construction, eliminate the necessity of providing a plurality of gripping functions for one set of the carriers, thereby leading to reduction of required parts and further, make the carriers move vertically without interfering with anything at a position in which unloading is completed, thereby leading to reduction of operating time.Type: GrantFiled: April 18, 1995Date of Patent: December 24, 1996Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Tatsunori Fujiwara, Yasuyuki Nakanishi, Koutarou Oka, Kei Shirahata, Shigehiro Itou