Patents by Inventor Akihiro Ooka
Akihiro Ooka 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: 9050225Abstract: A traveling device includes a support body, a columnar section extending upward from the support body, and a middle abutting part provided in a middle of the columnar section. The support body includes a right and left support parts that support the feet of a user. A right-rear abutting part and a left-rear abutting part (a rear-side plate) are provided at rear sides of the right support part and a left support part. A right-middle abutting part (a right elastic member) is provided at one side of the middle abutting part, and a left-middle abutting part (a left elastic member) is provided at the other side thereof. The feet of the user are placed on the right and left support parts such that heels abut against the right-rear and left-rear abutting parts and that patellar ligaments or shin bones abut against the right-middle and left-middle abutting parts.Type: GrantFiled: June 26, 2012Date of Patent: June 9, 2015Assignee: TANREN CO., LTD.Inventor: Akihiro Ooka
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Publication number: 20130292196Abstract: A traveling device includes a support body, a columnar section extending upward from the support body, and a middle abutting part provided in a middle of the columnar section. The support body includes a right and left support parts that support the feet of a user. A right-rear abutting part and a left-rear abutting part (a rear-side plate) are provided at rear sides of the right support part and a left support part. A right-middle abutting part (a right elastic member) is provided at one side of the middle abutting part, and a left-middle abutting part (a left elastic member) is provided at the other side thereof. The feet of the user are placed on the right and left support parts such that heels abut against the right-rear and left-rear abutting parts and that patellar ligaments or shin bones abut against the right-middle and left-middle abutting parts.Type: ApplicationFiled: June 26, 2012Publication date: November 7, 2013Applicant: TANREN CO., LTD.Inventor: Akihiro Ooka
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Patent number: 8187155Abstract: A training machine is provided comprising a base (6) arranged for placement on the floor (4), a movable member (32) provided on the base (6) to be moved by the training action, and a load exerting means (8) for exerting a load to control the movement of the movable member (32). The load exerting means (8) has a weight assembly (22) thereof arranged to be lifted vertically by the movement of the movable member (32) as resisting the gravity and particular is accompanied with a counter-force exerting means (70) arranged at the weight assembly (22) and/or the movable member (32) for exerting a returning force on the movable member (32) at the timing of shift from the upward movement to the downward movement of the weight assembly (22). The counter-force exerting means (70) comprises, for example, coil springs (72, 74) and movement stoppers (76, 78) for restricting the movement of the coil springs (72, 74).Type: GrantFiled: October 28, 2004Date of Patent: May 29, 2012Assignee: Tanren Co., Ltd.Inventor: Akihiro Ooka
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Publication number: 20050101451Abstract: A training machine is provided comprising a base (6) arranged for placement on the floor (4), a movable member (32) provided on the base (6) to be moved by the training action, and a load exerting means (8) for exerting a load to control the movement of the movable member (32). The load exerting means (8) has a weight assembly (22) thereof arranged to be lifted vertically by the movement of the movable member (32) as resisting the gravity and particular is accompanied with a counter-force exerting means (70) arranged at the weight assembly (22) and/or the movable member (32) for exerting a returning force on the movable member (32) at the timing of shift from the upward movement to the downward movement of the weight assembly (22). The counter-force exerting means (70) comprises, for example, coil springs (72, 74) and movement stoppers (76, 78) for restricting the movement of the coil springs (72, 74).Type: ApplicationFiled: October 28, 2004Publication date: May 12, 2005Applicant: TANREN CO., LTD.Inventor: Akihiro Ooka
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Patent number: 5444533Abstract: Conventional fiber-optic gyroscopes were provided with an independent photodetector for detecting interfering beams. The existence of the independent photodetector required two beam dividing-and-combining devices for equalizing the experiences of the clockwise-spreading beams and the counterclockwise-spreading beams. Curtailment of an expensive beam dividing-and-combining device is desirable for reducing the cost of gyroscopes. This invention dispenses with the independent photodetector. Instead of the independent photodetector, the light source itself or the monitoring photodiode detects the interfering beams by the change of driving current, applied voltage or photocurrent. Elimination of the independent photodetector saves one beam dividing-and-combining device by equalizing the path of the progressing beams to the path of the regressing beams. Optimum light sources, interposition of polarizer, position of depolarizer and use of birefringent material as polarizer are explained.Type: GrantFiled: August 31, 1993Date of Patent: August 22, 1995Assignee: Sumitomo Electric Industries, Ltd.Inventors: Yozo Nishiura, Takaki Iwashita, Akihiro Ooka
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Patent number: 5386484Abstract: An optical fiber type polarizer comprises a first optical fiber constituted by a birefringent optical fiber wound at a predetermined winding radius and having winding start and end fixed to each other by an adhesive, the first optical fiber having short extra portions respectively extending from the winding start and end, and the length of each of the short extra porions being at least as small as the predetermined winding radius. The optical fiber type polarizer further comprises a second optical fiber spliced to one of the short extra portions of the first optical fiber, and a third optical fiber spliced to the other of the short extra portions of the first optical fiber.Type: GrantFiled: September 9, 1993Date of Patent: January 31, 1995Assignee: Sumitomo Electric Industries, Ltd.Inventors: Akihiro Ooka, Kenji Kawamura, Yozo Nishiura, Katsuaki Itoh, Takaki Iwashita, Yasuhiko Nishi, Noritaka Kuroda, Hayato Hasegawa
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Patent number: 5122960Abstract: In a locator for location and direction detections of moving bodies which employs, in the direction detection, a magnetic direction sensor for outputting direction data and a gyro for outputting angular speed data, the locator for location and direction detections of moving bodies comprising a normal judgement function for the magnetic direction sensor which compares a direction variation quantity within an assigned time which is obtained from the difference of the direction data of the magnetic direction sensor, and an angle variation quantity within the assigned time which is obtained from an integral value of the angular speed data of the gyro, and in the case that the difference between the compared quantities is over a first predetermined value, judges that an error has occurred in the direction data of the magnetic direction sensor.Type: GrantFiled: October 10, 1989Date of Patent: June 16, 1992Assignee: Sumitomo Electric Industries, Ltd.Inventor: Akihiro Ooka
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Patent number: 5065612Abstract: A method of correcting a zero point of a gyro, comprises the steps of detecting a speed of a moving body and outputting a speed signal corresponding to the speed; determining with the speed signal whether the moving body is at a stopping condition; computing an average value of output values of the gyro within a constant time in which the moving body is at the stopping condition, and setting the average value to a new zero point of the gyro; and correcting an output value of the gyro with the new zero point.Type: GrantFiled: September 8, 1989Date of Patent: November 19, 1991Assignee: Sumitomo Electric Industries, Ltd.Inventors: Akihiro Ooka, Kazuo Hirano
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Patent number: 4794655Abstract: A patient moving device includes a movable support means, a loading-unloading means disposed on the support means for loading and unloading a patient and provided with a horizontal base plate held on the support means and an insertion plate inserted under a patient and adapted to move in and out of the horizontal plate, and a means for holding the horizontal base plate on the support means so as to be capable of being advanced and retracted in the same direction as the insertion plate.Type: GrantFiled: March 30, 1987Date of Patent: January 3, 1989Assignees: Agency of Industrial Science & Technology, Ministry of International Trade & IndustryInventors: Akihiro Ooka, Kenji Okamoto, Koji Yamada
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Patent number: 4680818Abstract: A device for moving a recumbent person comprises a baseplate, an insertion plate formed integrally of two flat plates stacked vertically with a small gap therebetween and attached to the baseplate to be horizontally extensible and retractable with respect thereto, a pair of rollers disposed one above the other at the proximal end of the baseplate, a first belt fixed to the upper of said pair of rollers at one end so as to be windable thereon, passed outward across the upper surface, around the distal edge and back along the lower surface of the upper flat plate of the insertion plate, and fixed to the lower of said pair of rollers at the other end so as to be windable thereon, and a second belt encircling the lower flat plate of the insertion plate and having its opposite ends fixed to the baseplate near the distal end thereof.Type: GrantFiled: March 28, 1986Date of Patent: July 21, 1987Assignees: Agency of Industrial Science and Technology, Ministry of International Trade and IndustryInventors: Akihiro Ooka, Kenji Okamoto, Koji Yamada
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Patent number: 4542526Abstract: An apparatus for recognizing a character (including an alpha-numeric character, mark or other character) written using a stylus applied to a tablet which stylus and tablet include an arrangement for providing an indication of position of the stylus with respect to a surface of the tablet. The character recognition apparatus determines the length and gradient (slope) of line segments of strokes drawn by a user which strokes combine to form characters. After determining length and gradient of a line segment, there is assigned to the line segment a distinctive code. A particular character is determined by examining the order of codes which define particular combinations of strokes. Recognition of characters is carried out in substantially real time.Type: GrantFiled: October 20, 1983Date of Patent: September 17, 1985Assignee: Sumitomo Electric Industries, Ltd.Inventors: Koji Satoh, Akihiro Ooka, Yutaka Wada