Patents by Inventor Takushi Minagi
Takushi Minagi 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: 8347477Abstract: In an embodiment, a shaping frame (2) of a pipe producing apparatus (1) includes a plurality of linking bodies (20) in which a pair of linking elements (21, 22) are rotatably coupled via a coupling shaft (23), a bending link (30) with opposite ends of which coupling elements are rotatably coupled via coupling shafts (23) and which expands or contracts the shaping frame (2), a drive unit (40) with opposite ends of which coupling elements (25, 25) are rotatably coupled via coupling shafts (23) and which forcedly sends out a profile strip (100) from the inside, and a joint unit (80) with opposite ends of which coupling elements (21, 22) are rotatably coupled via coupling shafts (23) and which is provided at a joint portion (120) of a winding of the profile strip.Type: GrantFiled: December 18, 2007Date of Patent: January 8, 2013Assignee: Sekisui Chemical Co., Ltd.Inventors: Shinji Kakine, Hiroshi Sugahara, Takushi Minagi, Takashi Yamamoto
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Patent number: 7690258Abstract: An impact elastic wave test is conducted to measure propagating waves in a pipe to be examined, a frequency spectrum of the propagating waves is analyzed, and at least a spectral area value in a first frequency region and a spectral area value in a second frequency region of the frequency spectrum are evaluated, thereby determining a type of a deteriorated state of the buried pipe.Type: GrantFiled: July 26, 2005Date of Patent: April 6, 2010Assignees: Sekisui Chemical Co., Ltd., Gifu UniversityInventors: Takushi Minagi, Hiroshi Iida, Masanori Asano, Toshiro Kamada
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Publication number: 20100008731Abstract: In an embodiment, a shaping frame (2) of a pipe producing apparatus (1) includes a plurality of linking bodies (20) in which a pair of linking elements (21, 22) are rotatably coupled via a coupling shaft (23), a bending link (30) with opposite ends of which coupling elements are rotatably coupled via coupling shafts (23) and which expands or contracts the shaping frame (2), a drive unit (40) with opposite ends of which coupling elements (25, 25) are rotatably coupled via coupling shafts (23) and which forcedly sends out a profile strip (100) from the inside, and a joint unit (80) with opposite ends of which coupling elements (21, 22) are rotatably coupled via coupling shafts (23) and which is provided at a joint portion (120) of a winding of the profile strip.Type: ApplicationFiled: December 18, 2007Publication date: January 14, 2010Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Shinji Kakine, Hiroshi Sugahara, Takushi Minagi, Takashi Yamamoto
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Patent number: 7530270Abstract: Deterioration of reinforced concrete pipes is checked and the deterioration progress level is classified. Based on the inspection result, a portion to be inspected in detail in an inspection area is selected. With respect to the selected portion to be inspected in detail, the pipe thickness and the diameter of reinforcing bars are measured and the location of reinforcing bars in the portion to be inspected in detail are checked. Using the data of the thickness of a pipe, the diameter of the reinforcing bar and disposition of the reinforcing bars, structural analysis is carried out and the strength of the reinforced concrete pipe is calculated. The calculation result is used as information for evaluating the deterioration state of the reinforced concrete pipe.Type: GrantFiled: January 31, 2008Date of Patent: May 12, 2009Assignee: Sekisui Chemical Co., Ltd.Inventors: Yoshiharu Nozaki, Takushi Minagi
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Publication number: 20080314151Abstract: An impact elastic wave test is conducted to measure propagating waves in a pipe to be examined, a frequency spectrum of the propagating waves is analyzed, and at least a spectral area value in a first frequency region and a spectral area value in a second frequency region of the frequency spectrum are evaluated, thereby determining a type of a deteriorated state of the buried pipe.Type: ApplicationFiled: July 26, 2005Publication date: December 25, 2008Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Takushi Minagi, Hiroshi Iida, Masanori Asano, Toshiro Kamata
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Patent number: 7426879Abstract: Deterioration of reinforced concrete pipes is checked and the deterioration progress level is classified. Based on the inspection result, a portion to be inspected in detail in an inspection area is selected. With respect to the selected portion to be inspected in detail, the pipe thickness and the diameter of reinforcing bars are measured and the location of reinforcing bars in the portion to be inspected in detail are checked. Using the data of the thickness of a pipe, the diameter of the reinforcing bar and disposition of the reinforcing bars, structural analysis is carried out and the strength of the reinforced concrete pipe is calculated. The calculation result is used as information for evaluating the deterioration state of the reinforced concrete pipe.Type: GrantFiled: January 31, 2008Date of Patent: September 23, 2008Assignee: Sekisui Chemical Co., Ltd.Inventors: Yoshiharu Nozaki, Takushi Minagi
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Publication number: 20080156123Abstract: Deterioration of reinforced concrete pipes is checked and the deterioration progress level is classified. Based on the inspection result, a portion to be inspected in detail in an inspection area is selected. With respect to the selected portion to be inspected in detail, the pipe thickness and the diameter of reinforcing bars are measured and the location of reinforcing bars in the portion to be inspected in detail are checked. Using the data of the thickness of a pipe, the diameter of the reinforcing bar and disposition of the reinforcing bars, structural analysis is carried out and the strength of the reinforced concrete pipe is calculated. The calculation result is used as information for evaluating the deterioration state of the reinforced concrete pipe.Type: ApplicationFiled: January 31, 2008Publication date: July 3, 2008Inventors: Yoshiharu Nozaki, Takushi Minagi
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Publication number: 20080134790Abstract: Deterioration of reinforced concrete pipes is checked and the deterioration progress level is classified. Based on the inspection result, a portion to be inspected in detail in an inspection area is selected. With respect to the selected portion to be inspected in detail, the pipe thickness and the diameter of reinforcing bars are measured and the location of reinforcing bars in the portion to be inspected in detail are checked. Using the data of the thickness of a pipe, the diameter of the reinforcing bar and disposition of the reinforcing bars, structural analysis is carried out and the strength of the reinforced concrete pipe is calculated. The calculation result is used as information for evaluating the deterioration state of the reinforced concrete pipe.Type: ApplicationFiled: January 31, 2008Publication date: June 12, 2008Inventors: Yoshiharu Nozaki, Takushi Minagi
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Patent number: 7360462Abstract: Deterioration of reinforced concrete pipes is checked and the deterioration progress level is classified. Based on the inspection result, a portion to be inspected in detail in an inspection area is selected. With respect to the selected portion to be inspected in detail, the pipe thickness and the diameter of reinforcing bars are measured and the location of reinforcing bars in the portion to be inspected in detail are checked. Using the data of the thickness of a pipe, the diameter of the reinforcing bar and disposition of the reinforcing bars, structural analysis is carried out and the strength of the reinforced concrete pipe is calculated. The calculation result is used as information for evaluating the deterioration state of the reinforced concrete pipe.Type: GrantFiled: April 10, 2003Date of Patent: April 22, 2008Assignee: Sekisui Chemical Co., Ltd.Inventors: Yoshiharu Nozaki, Takushi Minagi
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Publication number: 20050172697Abstract: Deterioration of the presence or absence of reinforced concrete pipes are checked and the deterioration progress level is classified and based on the inspection result, a portion to be inspected in detail in an inspection area is selected. With respect to the selected portion to be inspected in detail, the pipe thickness and the diameter of reinforcing bars are measured and the location of reinforcing bars in the portion to be inspected in detail are checked. Using the data of thickness of a pipe, diameter reinforcing bar and disposition of reinforcing bars, structural analysis is carried out and the strength of a pipe of the reinforced concrete pipe is calculated. The calculation result is used as information for evaluating the deterioration state of the reinforced concrete pipe.Type: ApplicationFiled: April 10, 2003Publication date: August 11, 2005Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Yoshiharu Nozaki, Takushi Minagi