Patents by Inventor Ryo Imanishi
Ryo Imanishi 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: 9644774Abstract: A synthetic resin-made welding joint that has a pipe end portion into which an end portion of a synthetic resin-made tube is to be fitted and inserted, and that is configured so that the pipe end portion and the tube end portion which is fitted and inserted thereinto are enabled to be welded together by heating of heating means which externally surrounds the pipe end portion, therefore, a synthetic resin-made holder which is fitted and attached onto the pipe end portion is disposed, and a flange for ensuring a radial expansion gap with respect to the heating means is integrally formed in the holder.Type: GrantFiled: April 1, 2011Date of Patent: May 9, 2017Assignee: NIPPON PILLAR PACKING CO., LTD.Inventors: Ryo Imanishi, Masaru Misaki, Masateru Yamada, Takehiro Nakamura, Akihiro Masuda
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Patent number: 9222608Abstract: A resin pipe joint including: a synthetic resin-made joint body including an inner cylinder portion, an external thread portion, and a radial groove m into which an end of a tube enters; and a union nut that is made of a transparentable fluorine resin, and the union nut including an internal thread portion, a seal peripheral edge which presses a tip end portion of a tube flared portion, a slipping-off prevention peripheral edge which is actable on a large-diameter portion of a flaring changing region, and a pressing inner peripheral portion which is externally fittable to a flared straight portion.Type: GrantFiled: July 14, 2009Date of Patent: December 29, 2015Assignee: NIPPON PILLAR PACKING CO., LTD.Inventors: Kazukiyo Teshima, Akihiro Masuda, Takehiro Nakamura, Masateru Yamada, Takayuki Kishimoto, Toshiyuki Fukumoto, Takeshi Nakagawa, Ryo Imanishi
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Patent number: 9151427Abstract: In a resin pipe joint having a configuration where, by a screw advancement of a union nut caused by screwing an internal thread to an external thread in a state where a tube is externally fitted to an inner cylinder to form a flared portion, a flaring changing region is pressed by a seal pressing portion, a torque varying portion in which projecting portions of a joint body and recess portions of the union nut are fitted to or unfitted from each other by a flexural displacements of the projecting portions in the direction of the axis in accordance with fastening rotation of the union nut from the vicinity of a portion in front of an end of the screw advancement, the screw advancement being caused by pressing of the seal pressing portion against the flaring changing region is configured.Type: GrantFiled: November 6, 2009Date of Patent: October 6, 2015Assignee: NIPPON PILLAR PACKING CO., LTD.Inventors: Ryo Imanishi, Masateru Yamada, Kazukiyo Teshima, Takehiro Nakamura, Takayuki Kishimoto, Akihiro Masuda, Takeshi Nakagawa
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Patent number: 9109728Abstract: A resin pipe joint has: a synthetic resin-made joint body including an inner cylinder portion and an external thread portion; and a synthetic resin-made union nut including: an internal thread portion; a seal peripheral edge which is actable on a tip-end portion of a tube flared portion; a slipping-off prevention peripheral edge which is actable on a large-diameter portion of the flaring changing region; and a pressing inner peripheral portion which is externally fittable to a flared straight portion that is fitted to a straight barrel cylinder portion.Type: GrantFiled: July 14, 2009Date of Patent: August 18, 2015Assignee: NIPPON PILLAR PACKAGING CO., LTD.Inventors: Kazukiyo Teshima, Akihiro Masuda, Takehiro Nakamura, Masateru Yamada, Takayuki Kishimoto, Toshiyuki Fukumoto, Ryo Imanishi
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Publication number: 20130038053Abstract: A synthetic resin-made welding joint that has a pipe end portion into which an end portion of a synthetic resin-made tube is to be fitted and inserted, and that is configured so that the pipe end portion and the tube end portion which is fitted and inserted thereinto are enabled to be welded together by heating of heating means which externally surrounds the pipe end portion, therefore, a synthetic resin-made holder which is fitted and attached onto the pipe end portion is disposed, and a flange for ensuring a radial expansion gap with respect to the heating means is integrally formed in the holder.Type: ApplicationFiled: April 1, 2011Publication date: February 14, 2013Applicant: NIPPON PILLAR PACKING CO., LTD.Inventors: Ryo Imanishi, Masaru Misaki, Masateru Yamada, Takehiro Nakamura, Akihiro Masuda
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Publication number: 20110260450Abstract: In a resin pipe joint having a configuration where, by a screw advancement of a union nut caused by screwing an internal thread to an external thread in a state where a tube is externally fitted to an inner cylinder to form a flared portion, a flaring changing region is pressed by a seal pressing portion, a torque varying portion in which projecting portions of a joint body and recess portions of the union nut are fitted to or unfitted from each other by a flexural displacements of the projecting portions in the direction of the axis in accordance with fastening rotation of the union nut from the vicinity of a portion in front of an end of the screw advancement, the screw advancement being caused by pressing of the seal pressing portion against the flaring changing region is configured.Type: ApplicationFiled: November 6, 2009Publication date: October 27, 2011Applicant: NIPPON PILLAR PACKING CO., LTD.Inventors: Ryo Imanishi, Masateru Yamada, Kazukiyo Teshima, Takehiro Nakamura, Takayuki Kishimoto, Akihiro Masuda, Takeshi Nakagawa
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Publication number: 20110221190Abstract: A resin pipe joint in which, although an economical configuration formed by two components or a joint body and a union nut is employed, both a resistance against pulling and an excellent sealing property can be attained is provided.Type: ApplicationFiled: July 14, 2009Publication date: September 15, 2011Applicant: NIPPON PILLAR PACKING CO., LTD.Inventors: Kazukiyo Teshima, Akihiro Masuda, Takehiro Nakamura, Masateru Yamada, Takayuki Kishimoto, Toshiyuki Fukumoto, Ryo Imanishi
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Publication number: 20110210544Abstract: A resin pipe joint in which, although an economical configuration formed by two components or a joint body and a union nut is employed, both a resistance against pulling and an excellent sealing property can be attained is provided.Type: ApplicationFiled: July 14, 2009Publication date: September 1, 2011Applicant: NIPPON PILLAR PACKING CO., LTD.Inventors: Kazukiyo Teshima, Akihiro Masuda, Takehiro Nakamura, Masateru Yamada, Takayuki Kishimoto, Toshiyuki Fukumoto, Takeshi Nakagawa, Ryo Imanishi
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Patent number: 6364640Abstract: The invention provides a pump with a pulsation suppression device which can further enhance the effect of suppressing pulsation. According to the invention, in one side portion of a pump head wall 1 having inflow and outflow passages 2 and 3, a first bellows 7 which is driven so as to extend and contract by an air cylinder portion 14, and check valves 16a and 16b which alternately open and close a pump working chamber 9a formed in the first bellows 7 are disposed to constitute a reciprocal pump portion 4. In the other side portion of the pump head wall 1, a pulsation suppressing portion 5 is configured so as to have a second bellows 18 that is extendable and contractible, and that forms: a liquid chamber 20a which can temporarily store liquid that is to be discharged from the pump portion 4; and an air chamber 20b which is isolated from the liquid chamber 20a.Type: GrantFiled: October 11, 2000Date of Patent: April 2, 2002Assignee: Nippon Pillar Packing Co., Ltd.Inventors: Kiyoshi Nishio, Ryo Imanishi, Yoji Minato, Masayoshi Katsura, Hitoshi Kawamura, Makoto Fujii
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Patent number: 5088898Abstract: A reciprocating pump comprises a plurality of pump sections, each pump section having a suction inlet and a discharge outlet, the inlets all connecting with a common passageway through which the pumped fluid is supplied and the outlets all connecting with a common discharge passageway through which the pumped fluid is discharged. Each pump section includes a bellows which reciprocates to alternately produce suction and discharge strokes, with a change-over period between strokes. A drive control for the bellows delays the start of strokes by the bellows so that when one pump section is in a suction stroke or a change-over period, at least one other pump section is in a discharge stroke. The arrangement reduces variations in pressure in the discharge from the pump.Type: GrantFiled: October 10, 1990Date of Patent: February 18, 1992Assignee: Nippon Pillar Packing Co., Ltd.Inventors: Toshiyuki Fukumoto, Ryo Imanishi