Patents by Inventor Hirokazu Shukuin
Hirokazu Shukuin 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: 11661933Abstract: A vibration suppressing piping member suppresses vibration caused by a pulsating discharged gaseous fluid. The piping member includes a tubular portion and flange portions at both ends of the tubular portion. A bent portion is formed between the two flange portions. The two flange portions are directly connected to each other.Type: GrantFiled: October 19, 2018Date of Patent: May 30, 2023Assignee: KOBELCO COMPRESSORS CORPORATIONInventors: Yoshio Yano, Hirokazu Shukuin
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Patent number: 11060664Abstract: A pressure vessel includes a vessel body, a first rib and a second rib. The vessel body includes a first surface and a second surface. The first rib projects in a second direction from the first surface and extends in a first direction. The second rib provided in series with the first rib, projects in the first direction from the second surface, and extends in the second direction. A width in the second direction of the internal space is smaller than a width in the first direction of the internal space. A maximum value of a projection amount of the second rib from the second surface to the outside of the vessel body in the first direction is smaller than the maximum value of a projection amount of the first rib from the first surface to the outside of the vessel body in the second direction.Type: GrantFiled: December 14, 2017Date of Patent: July 13, 2021Assignee: KOBE STEEL, LTD.Inventors: Yasuto Kataoka, Hirokazu Shukuin, Kazuya Hirata
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Publication number: 20200325885Abstract: A tubular portion; and flange portions at both ends of the tubular portion are included. A bent portion is formed between the two flange portions. The two flange portions are directly connected to each other.Type: ApplicationFiled: October 19, 2018Publication date: October 15, 2020Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)Inventors: Yoshio YANO, Hirokazu SHUKUIN
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Publication number: 20190360638Abstract: A pressure vessel includes a vessel body, a first rib and a second rib. The vessel body includes a first surface and a second surface. The first rib projects in a second direction from the first surface and extends in a first direction. The second rib provided in series with the first rib, projects in the first direction from the second surface, and extends in the second direction. A width in the second direction of the internal space is smaller than a width in the first direction of the internal space. A maximum value of a projection amount of the second rib from the second surface to the outside of the vessel body in the first direction is smaller than the maximum value of a projection amount of the first rib from the first surface to the outside of the vessel body in the second direction.Type: ApplicationFiled: December 14, 2017Publication date: November 28, 2019Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)Inventors: Yasuto KATAOKA, Hirokazu SHUKUIN, Kazuya HIRATA
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Patent number: 9565352Abstract: An optical apparatus includes an image sensor that includes a focus detecting pixel and an image pickup pixel, a first focus detector configured to provide a focus detection based upon a phase difference between the pair of image signals detected by the focus detecting pixel of the image sensor, a second focus detector configured to provide a focus detection based upon a contrast value based upon an output of the image pickup pixel of the image sensor, and a controller configured to provide autofocus utilizing the first focus detector when a focus detection precision of the first focus detector is equal to or higher than a first value and an image magnification variation amount calculated from a wobbling amount of the image pickup optical system used for the second focus detector is equal to or higher than a second value.Type: GrantFiled: February 1, 2013Date of Patent: February 7, 2017Assignee: CANON KABUSHIKI KAISHAInventors: Hirokazu Shukuin, Kunihiko Sasaki, Yuki Nagao, Daisuke Ochi, Atsushi Koyama, Shigehiro Torii, Shota Shimada, Masayasu Mizushima
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Patent number: 9007510Abstract: An optical apparatus is configured to execute a manual focus mode in which focusing is performed by an operation of a manual operating unit by moving an image pickup optical system configured to form an optical image of an object. The optical apparatus includes a diaphragm configured to adjust a light quantity, and a controller configured to control a movement of the image pickup optical system in accordance with an operating amount of the manual operating unit so that a unit moving amount that is a moving amount of an in-focus position of the image pickup optical system per unit operation of the manual operating unit corresponds to a product between a diameter of a minimum confusion circle of the image pickup optical system, a diaphragm value of the diaphragm in the manual focus mode, and a coefficient that is a natural number or a reciprocal of the natural number.Type: GrantFiled: September 13, 2012Date of Patent: April 14, 2015Assignee: Canon Kabushiki KaishaInventors: Daisuke Ochi, Yuki Nagao, Atsushi Koyama, Masayasu Mizushima, Shigehiro Torii, Kunihiko Sasaki, Shota Shimada, Hirokazu Shukuin
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Patent number: 8743267Abstract: An optical apparatus includes a first driver configured to drive a focus lens unit in autofocusing, a second driver configured to drive the focus lens unit in the autofocusing, a first detector configured to detect a driving amount of the first driver, a second detector configured to detect a driving amount of the second driver, a memory configured to store a relationship between information of detection results of the first and second detectors, and an object distance as a distance from the optical apparatus to an object, and a controller configured to obtain information of the object distance based upon the relationship stored in the memory and the detection results of the first and second detectors.Type: GrantFiled: October 26, 2012Date of Patent: June 3, 2014Assignee: Canon Kabushiki KaishaInventors: Masanori Ishikawa, Seiichi Kashiwaba, Atsushi Koyama, Masayasu Mizushima, Hirokazu Shukuin
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Publication number: 20130070144Abstract: An optical apparatus is configured to execute a manual focus mode in which focusing is performed by an operation of a manual operating unit by moving an image pickup optical system configured to form an optical image of an object. The optical apparatus includes a diaphragm configured to adjust a light quantity, and a controller configured to control a movement of the image pickup optical system in accordance with an operating amount of the manual operating unit so that a unit moving amount that is a moving amount of an in-focus position of the image pickup optical system per unit operation of the manual operating unit corresponds to a product between a diameter of a minimum confusion circle of the image pickup optical system, a diaphragm value of the diaphragm in the manual focus mode, and a coefficient that is a natural number or a reciprocal of the natural number.Type: ApplicationFiled: September 13, 2012Publication date: March 21, 2013Applicant: CANON KABUSHIKI KAISHAInventors: Daisuke Ochi, Yuki Nagao, Atsushi Koyama, Masayasu Mizushima, Shigehiro Torii, Kunihiko Sasaki, Shota Shimada, Hirokazu Shukuin
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Publication number: 20130064534Abstract: An optical apparatus includes a zoom optical system including a focus lens unit, an operation portion configured to manually and mechanically change a focal length of the zoom optical system, and a controller configured to control the focus lens unit so as to move along a track depending on an object distance in an operation of the operation portion. The controller moves the focus lens unit to a second position that is different from a first position that is a position of the focus lens unit in disconnecting a power when a first focal length that is a focal length of the zoom optical system in disconnecting the power is different from a second focal length that is a focal length of the zoom optical system in reconnecting the power.Type: ApplicationFiled: September 10, 2012Publication date: March 14, 2013Applicant: CANON KABUSHIKI KAISHAInventors: Atsushi Koyama, Yuki Nagao, Kunihiko Sasaki, Shota Shimada, Shigehiro Torii, Masayasu Mizushima, Daisuke Ochi, Hirokazu Shukuin