Patents by Inventor Hideya Kohara
Hideya Kohara 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: 7287624Abstract: A double deck elevator comprising an upper cage and a lower cage vertically movable together in a hositway, wherein a space between the upper cage and the lower cage is covered by covers. The covers guide airflow flowing around the space to reduce air turbulence noise, and consequently the quietness and comfortableness in the cages is improved.Type: GrantFiled: July 17, 2003Date of Patent: October 30, 2007Assignee: Kabushiki Kaisha ToshibaInventors: Hiroaki Itoh, Hideya Kohara, Masahir Hayakawa, Gen Yokoi
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Patent number: 7077240Abstract: A double deck elevator comprising an upper cage and a lower cage vertically movable together in a hositway, wherein a space between the upper cage and the lower cage is covered by covers. The covers guide airflow flowing around the space to reduce air turbulence noise, and consequently the quietness and comfortableness in the cages is improved.Type: GrantFiled: July 17, 2003Date of Patent: July 18, 2006Assignee: Kabushiki Kaisha ToshibaInventors: Hiroaki Itoh, Hideya Kohara, Masahiro Hayakawa, Gen Yokoi
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Publication number: 20040094369Abstract: A double deck elevator comprising an upper cage and a lower cage vertically movable together in a hositway, wherein a space between the upper cage and the lower cage is covered by covers. The covers guide airflow flowing around the space to reduce air turbulence noise, and consequently the quietness and comfortableness in the cages is improved.Type: ApplicationFiled: July 17, 2003Publication date: May 20, 2004Applicant: Kabushiki Kaisha ToshibaInventors: Hiroaki Itoh, Hideya Kohara, Masahir Hayakawa, Gen Yokoi
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Publication number: 20040016605Abstract: A double deck elevator comprising an upper cage and a lower cage vertically movable together in a hositway, wherein a space between the upper cage and the lower cage is covered by covers. The covers guide airflow flowing around the space to reduce air turbulence noise, and consequently the quietness and comfortableness in the cages is improved.Type: ApplicationFiled: July 17, 2003Publication date: January 29, 2004Applicant: Kabushiki Kaisha ToshibaInventors: Hiroaki Itoh, Hideya Kohara, Masahiro Hayakawa, Gen Yokoi
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Patent number: 6615952Abstract: A double deck elevator comprising an upper cage and a lower cage vertically movable together in a hoistway, wherein a space between the upper cage and the lower cage is covered by covers. The covers guide airflow flowing around the space to reduce air turbulence noise, and consequently the ride in the cages becomes quieter and more comfortable.Type: GrantFiled: March 1, 2001Date of Patent: September 9, 2003Assignee: Kabushiki Kaisha ToshibaInventors: Hiroaki Itoh, Hideya Kohara, Masahiro Hayakawa, Gen Yokoi
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Patent number: 6336522Abstract: The hoist control device controls the hoist in such a manner that once the speed change of the cage frame has accelerated at a fixed acceleration, constant speed is maintained, after which it decelerates at a fixed deceleration and stops. Meanwhile, the cage chamber position control device controls the cage chamber drive device in such a manner that once the speed change of the cage chamber driven by the cage chamber drive device has accelerated at a fixed acceleration, constant speed is maintained, after which it decelerates at a fixed deceleration and stops.Type: GrantFiled: October 27, 2000Date of Patent: January 8, 2002Assignee: Kabushiki Kaisha ToshibaInventors: Yoshiaki Fujita, Hideya Kohara, Koichi Mishima
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Publication number: 20010018996Abstract: A double deck elevator comprising an upper cage and a lower cage vertically movable together in a hositway, wherein a space between the upper cage and the lower cage is covered by covers. The covers guide airflow flowing around the space to reduce air turbulence noise, and consequently the quietness and comfortableness in the cages is improved.Type: ApplicationFiled: March 1, 2001Publication date: September 6, 2001Applicant: Kabushiki Kaisha Toshiba.Inventors: Hiroaki Itoh, Hideya Kohara, Masahiro Hayakawa, Gen Yokoi
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Patent number: 5811743Abstract: A passenger car of an elevator is transversely vibrated when it is hoisted up or down due to curves in guide rails and level differences at joints of the guide rails. An elevator vibration control apparatus of this invention employs a vibration or displacement sensor attached to a passenger car chamber to detect such transverse vibration of the passenger car. A controller calculates an operation quantity of an actuator to cancel the detected vibration of the passenger car. According to the calculated operation quantity, a servomotor is driven to displace the passenger car in a direction to cancel the transverse vibration and suppress force applied to the passenger car. As a result, the transverse vibration of the passenger car is reduced, and comfortableness of riding in the passenger car is improved.Type: GrantFiled: August 3, 1995Date of Patent: September 22, 1998Assignee: Kabushiki Kaisha ToshibaInventors: Hideya Kohara, Shigeo Nakagaki, Tadashi Shudo, Yukihiko Kazao
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Patent number: 5460570Abstract: An elevator cage with an ventilator which has supply system for supplying fresh air into the cage and exhaust system for exhausting air from the cage. An active noise controller is provided to at least the supply system to cancel noise which is caused by a supply fan provided in the supply system and changing air force between the cage and a path to guide the cage while the cage moves at high speed.Type: GrantFiled: January 14, 1994Date of Patent: October 24, 1995Assignee: Kabushiki Kaisha ToshibaInventors: Akihiko Okamura, Hideya Kohara, Katsuyoshi Nagayasu
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Patent number: 5402861Abstract: An elevator passenger car including a car frame, a cage mounted to the car frame and an anti-vibration tuber member positioned between a bottom face of the cage and a lower portion of the car frame for supporting the cage. The elevator passenger car further includes a load sensing unit for measuring a passenger loading of the passenger car and a control device connected to receive the passenger loading for comparing the passenger loading with a passenger car resonance loading range to generate a control signal based on a comparison result. The elevator passenger car also includes an adjustment device positioned between the bottom face of the cage and the lower portion of the car frame for receiving the control signal from the control device and for adjusting a natural frequency of the passenger car based on the control signal by co-operating with the anti-vibration rubber member. Resonance of the passenger car with an externally applied frequency force is then avoided.Type: GrantFiled: October 15, 1993Date of Patent: April 4, 1995Assignee: Kabushiki Kaisha ToshibaInventor: Hideya Kohara