Patents by Inventor Shingo Nagashima
Shingo Nagashima 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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Publication number: 20240131777Abstract: A method of manufacturing a structure is provided in which a burr portion can be more reliably cut. In a burr portion shaping step, the burr portion is sucked to an engaging portion by a suction part to shape the burr portion along the engaging portion, and in a cutting step, ae movable portion is moved relative to first and second split molds with the burr portion being shaped along the engaging portion, thereby the burr portion is cut from a molded main body along a cutting line.Type: ApplicationFiled: February 18, 2022Publication date: April 25, 2024Applicant: KYORAKU CO., LTD.Inventors: Yuki HARASAWA, Tadatoshi TANJI, Tatsuya FUKUDA, Takurou MATSUDA, Sho NAKAJIMA, Shingo NAGASHIMA
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Publication number: 20220371231Abstract: The present invention provides a manufacturing method of a molded product by which the cutting accuracy of a burr provided on the peripheral surface of the molded body can be improved. According to the present invention, provided is a manufacturing method of a molded product, comprising a measurement step; a correction step; and a burr cutting step, wherein, in the measurement step, a position of at least one point on a peripheral surface of a molded body is measured while the molded body is in a positioned state, in the correction step, a master cutting line is corrected on the basis of a measurement result in the measurement step to determine a corrected cutting line, and in the burr cutting step, a burr provided on the peripheral surface of the molded body is cut according to the corrected cutting line.Type: ApplicationFiled: October 26, 2020Publication date: November 24, 2022Applicant: KYORAKU CO., LTD.Inventors: Hisanao HATO, Tadatoshi TANJI, Shingo NAGASHIMA
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Patent number: 11255427Abstract: A shift device in which a press-fit column of a control lever is press-fitted into and passed through a press-fit hole in a boot such that the boot forms a seal between the upper side and the lower side of the press-fit hole. A press-fit interference amount between the press-fit column and the press-fit hole is larger at a length direction intermediate side of the press-fit hole than at a length direction end portion side of the press-fit hole. This enables a reduction in the contact force between the press-fit column and a peripheral face of the press-fit hole at the length direction intermediate side of the press-fit hole to be suppressed, enabling the sealing performance of the press-fit hole in the boot to be improved.Type: GrantFiled: April 24, 2020Date of Patent: February 22, 2022Assignees: KABUSHIKI KAISHA TOKAI-RIKA-DENKI-SEISAKUSHO, SUBARU CORPORATIONInventors: Takumi Ito, Shingo Nagashima, Yusaku Imai, Masahide Mita, Tomoyuki Otsuka
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Publication number: 20200355259Abstract: A shift device in which a press-fit column of a control lever is press-fitted into and passed through a press-fit hole in a boot such that the boot forms a seal between the upper side and the lower side of the press-fit hole. A press-fit interference amount between the press-fit column and the press-fit hole is larger at a length direction intermediate side of the press-fit hole than at a length direction end portion side of the press-fit hole. This enables a reduction in the contact force between the press-fit column and a peripheral face of the press-fit hole at the length direction intermediate side of the press-fit hole to be suppressed, enabling the sealing performance of the press-fit hole in the boot to be improved.Type: ApplicationFiled: April 24, 2020Publication date: November 12, 2020Inventors: Takumi ITO, Shingo NAGASHIMA, Yusaku IMAI, Masahide MITA, Tomoyuki OTSUKA
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Patent number: 8562898Abstract: A method for forming a resin molded article includes a step of extruding a thermoplastic resin intermittently at a predetermined speed from an extrusion slit, such that the resin droops downward in a shape of a sheet. The method further includes the steps of: feeding the extruded sheet-shaped resin downward by a pair of rollers; and forming the sheet-shaped resin with a mold. In the step of feeding the sheet-shaped resin, one of the rollers is pressed against the other, but not to the extent of crushing the sheet-shaped resin, regardless of the thickness of the sheet-shaped resin. In addition, a surface temperature of each of the rollers is set lower than a temperature of the sheet-shaped resin and within a predetermined temperature range. This method can prevent sliding contact between the rollers and the sheet, while preventing the sheet from being wound around the rollers.Type: GrantFiled: August 26, 2010Date of Patent: October 22, 2013Assignee: Kyoraku Co., Ltd.Inventors: Tadatoshi Tanji, Shingo Nagashima
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Publication number: 20110101561Abstract: A method for forming a resin molded article includes a step of extruding a thermoplastic resin intermittently at a predetermined speed from an extrusion slit, such that the resin droops downward in a shape of a sheet. The method further includes the steps of: feeding the extruded sheet-shaped resin downward by a pair of rollers; and forming the sheet-shaped resin with a mold. In the step of feeding the sheet-shaped resin, one of the rollers is pressed against the other, but not to the extent of crushing the sheet-shaped resin, regardless of the thickness of the sheet-shaped resin. In addition, a surface temperature of each of the rollers is set lower than a temperature of the sheet-shaped resin and within a predetermined temperature range. This method can prevent sliding contact between the rollers and the sheet, while preventing the sheet from being wound around the rollers.Type: ApplicationFiled: August 26, 2010Publication date: May 5, 2011Applicant: KYORAKU CO., LTD.Inventors: Tadatoshi TANJI, Shingo NAGASHIMA
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Patent number: 6109305Abstract: There is provided a double walled pipe having an inner pipe and an outer pipe which is movable relative to the inner pipe in a longitudinal direction of the inner pipe. Acting on only the outer pipe with a pipe jacking power makes it possible to bury the double walled pipe, without damaging the rear end of the inner pipe and also generating an internal stress on the inner pipe. Consequently, it is avoided such a situation that even in use pinholes, cracks, etc. occur on the inner pipe, and thus it is possible to expect an execution with higher reliability.Type: GrantFiled: August 6, 1999Date of Patent: August 29, 2000Assignees: Kawasaki Steel Corp., Tokyo Gas Co. Ltd.Inventors: Tomoya Fujimoto, Kenko Okamura, Shigeru Morishita, Masaru Murakami, Akira Adachi, Mitsutoshi Hayashi, Akinari Fujita, Shingo Nagashima, Minoru Kurashina, Kentaro Yoshida
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Patent number: 6004073Abstract: There is provided a double walled pipe having an inner pipe and an outer pipe which is movable relative to the inner pipe in a longitudinal direction of the inner pipe. Acting on only the outer pipe with a pipe jacking power makes it possible to bury the double walled pipe, without damaging the rear end of the inner pipe and also generating an internal stress on the inner pipe. Consequently, it is avoided such a situation that even in use pinholes, cracks, etc. occur on the inner pipe, and thus it is possible to expect an execution with higher reliability.Type: GrantFiled: November 4, 1996Date of Patent: December 21, 1999Assignees: Kawasaki Steel Corp., Tokyo Gas Co. Ltd.Inventors: Tomoya Fujimoto, Kenko Okamura, Shigeru Morishita, Masaru Murakami, Akira Adachi, Mitsutoshi Hayashi, Akinari Fujita, Shingo Nagashima, Minoru Kurashina, Kentaro Yoshida
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Patent number: 5615976Abstract: There is provided a double walled pipe having an inner pipe and an outer pipe which is movable relative to the inner pipe in a longitudinal direction of the inner pipe. Acting on only the outer pipe with a pipe jacking power makes it possible to bury the double walled pipe, without damaging the rear end of the inner pipe and also generating an internal stress on the inner pipe. Consequently, it is avoided such a situation that even in use pinholes, cracks, etc. occur on the inner pipe, and thus it is possible to expect an execution with higher reliability.Type: GrantFiled: September 14, 1994Date of Patent: April 1, 1997Assignees: Kawasaki Steel Corp., Tokyo Gas Co. Ltd.Inventors: Tomoya Fujimoto, Kenko Okamura, Shigeru Morishita, Masaru Murakami, Akira Adachi, Mitsutoshi Hayashi, Akinari Fujita, Shingo Nagashima, Minoru Kurashina, Kentaro Yoshida
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Patent number: 5527135Abstract: A conduit comprised of double-wall pipes A is laid in the ground by the pipe-jacking method. Each of double-wall pipes A comprises inner pipe 1 and outer pipe 2 and is provided with sheath pipe 4 between inner pipe 1 and outer pipe 2 and with check valve 7. Winch 11 is mounted in tunneling machine 6. Wire 12 wound on winch 11 is inserted into sheath pipe 4 and the forward end of wire 12 is sent to start vertical shaft C through sheath pipe 4, and connected with cleaning member 24, injecting member F, and supply pipe 14. Cleaning member 21, injecting member F, and supply pipe 14 are moved in sheath pipes 4 by driving winch 7. When injecting member F is opposed to check valve 7, packing means 19, 20 are inflated to be brought into contact with the inside of sheath pipe 4 by which injecting member F is fixed to sheath pipe 4.Type: GrantFiled: February 15, 1994Date of Patent: June 18, 1996Assignees: Kabushiki Kaisha Iseki Kaihatsu Koki, Tokyo Gas Co., Ltd.Inventors: Mitsutoshi Hayashi, Akitaka Fujita, Shingo Nagashima, Minoru Kurashina, Makoto Kajiyama, Hideki Uno
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Patent number: 5501548Abstract: When a shield tunneling machine is deviated from the scheduled line while being propelled, the deviation of the shield tunneling machine from the scheduled line is detected and according to the data obtained on the deviation of the shield tunneling machine from the scheduled line, the propelling direction of the shield tunneling machine is automatically controlled.Type: GrantFiled: February 24, 1994Date of Patent: March 26, 1996Assignees: Tokyo Gas Co., Ltd., Kabushiki Kaisha Iseki Kaihatsu KokiInventors: Mitsutoshi Hayashi, Akitaka Fujita, Shingo Nagashima, Isao Fujimori
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Patent number: 5333501Abstract: In an abnormality monitoring apparatus of the present invention, a plurality of detectors (13, 14) are arranged at a plurality of positions in the axial direction of a pipeline (11) to detect respective sound waves (37) propagating from a position (B) of occurrence of abnormality. The aforementioned position is calculated from a sound wave detection time difference between the detectors (13, 14) and position between the detectors (13, 14). The apparatus further includes an abnormal waveform memory unit (28) for storing the waveforms of a plurality of kinds of typical abnormal sound waves generated from abnormality on the pipeline (11). A display device (19) displays, on the same image screen, the abnormal waveform stored in the abnormal waveform memory unit and that of the sound wave detected. It is, therefore, possible for a monitoring personnel to readily identify a kind of abnormality occurred.Type: GrantFiled: March 17, 1992Date of Patent: August 2, 1994Assignees: Tokyo Gas Co., Ltd., NKK CorporationInventors: Masumi Okada, Shingo Nagashima, Kazuo Nakamachi, Kazuo Hattori, Yoji Takanashi, Masaru Yasuda, Masami Ishikawa, Yoshiyasu Murata