Patents by Inventor Motonobu Ito
Motonobu Ito 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).
-
Patent number: 10415201Abstract: An opening/closing device according to the present invention includes a gate, a fall prevention unit, a support release unit, a first float, a floating prevention unit, a second float, and a floating prevention release unit. The gate receives a flow of fluid, and is able to fall down toward a downstream direction of the flow. The fall prevention unit supports the gate, thereby preventing the gate from falling down. The support release unit releases the support for the gate by the fall prevention unit. The first float is arranged on an upstream side of the gate, is arranged on one of the left side and the right side of the gate viewed from upstream, and is less in the specific gravity than the fluid. The floating prevention unit prevents the first float from floating.Type: GrantFiled: June 18, 2015Date of Patent: September 17, 2019Assignees: NIPPON KOEI CO., LTD., TOKYO METROPOLITAN SEWERAGE SERVICE CORPORATION, KANSEI COMPANYInventors: Motonobu Ito, Tamotsu Kikuchi, Takato Aoyama, Takaaki Odate, Kenji Hasegawa, Osamu Igawa
-
Publication number: 20180135266Abstract: An opening/closing device according to the present invention includes a gate, a fall prevention unit, a support release unit, a first float, a floating prevention unit, a second float, and a floating prevention release unit. The gate receives a flow of fluid, and is able to fall down toward a downstream direction of the flow. The fall prevention unit supports the gate, thereby preventing the gate from falling down. The support release unit releases the support for the gate by the fall prevention unit. The first float is arranged on an upstream side of the gate, is arranged on one of the left side and the right side of the gate viewed from upstream, and is less in the specific gravity than the fluid. The floating prevention unit prevents the first float from floating.Type: ApplicationFiled: June 18, 2015Publication date: May 17, 2018Applicants: NIPPON KOEI CO., LTD., TOKYO METROPOLITAN SEWERAGE SERVICE CORPORATION, KANSEI COMPANYInventors: Motonobu ITO, Tamotsu KIKUCHI, Takato AOYAMA, Takaaki ODATE, Kenji HASEGAWA, Osamu IGAWA
-
Patent number: 8695628Abstract: An opening/closing device 1 according to the present invention includes a gate 10 that receives a flow of a sewage W in an upright state, and can fall toward a downstream side of the flow and a first spring 52a that generates a force for bringing the gate 10 into an upright state, wherein the first spring 52 generates a force insufficient for bringing the gate 10 into the upright state if the gate 10 is in a fallen state, and generates a force sufficient for bringing the gate into the upright state if the gate 10 is tilted by an angle equal to or less than a predetermined angle.Type: GrantFiled: February 2, 2010Date of Patent: April 15, 2014Assignees: Nippon Koei Co., Ltd., Tokyo Metropolitan Sewerage Service Corporation, Kansei CompanyInventors: Hiroshi Komatsu, Motonobu Ito, Kazuhiro Yamanouchi, Kenji Hasegawa, Iwao Ito
-
Patent number: 8590560Abstract: An opening/closing device includes a gate that receives a flow of a sewage, and can fall toward a downstream side of the flow, a fall prevention unit that prevents the gate from falling by supporting the gate, a support release unit that releases the support for the gate by the fall prevention unit, a first float that is arranged on the upstream side of the gate, and is smaller in specific gravity than the sewage, a surfacing prevention unit that prevents the first float from surfacing, a second float that is arranged on the upstream side of the gate, above the first float, and is smaller in specific gravity than the fluid, and a surfacing-prevention release unit that releases, resulting from surfacing of the second float, the prevention of the surfacing of the first float by the surfacing prevention unit. Further, the support release unit is activated resulting from surfacing of the first float.Type: GrantFiled: February 2, 2010Date of Patent: November 26, 2013Assignees: Nippon Koei Co., Ltd., Tokyo Metropolitan Sewerage Service Corporation, Kansei CompanyInventors: Hiroshi Komatsu, Motonobu Ito, Kazuhiro Yamanouchi, Kenji Hasegawa, Iwao Ito
-
Publication number: 20110297250Abstract: An opening/closing device includes a gate that receives a flow of a sewage, and can fall toward a downstream side of the flow, a fall prevention unit that prevents the gate from falling by supporting the gate, a support release unit that releases the support for the gate by the fall prevention unit, a first float that is arranged on the upstream side of the gate, and is smaller in specific gravity than the sewage, a surfacing prevention unit that prevents the first float from surfacing, a second float that is arranged on the upstream side of the gate, above the first float, and is smaller in specific gravity than the fluid, and a surfacing-prevention release unit that releases, resulting from surfacing of the second float, the prevention of the surfacing of the first float by the surfacing prevention unit. Further, the support release unit is activated resulting from surfacing of the first float.Type: ApplicationFiled: February 2, 2010Publication date: December 8, 2011Applicants: NIPPON KOEI CO., LTD., KANSEI COMPANY, TOKYO METROPOLITAN SEWERAGE SERVICE CORPORATIONInventors: Hiroshi Komatsu, Motonobu Ito, Kazuhiro Yamanouchi, Kenji Hasegawa, Iwao Ito
-
Publication number: 20110290343Abstract: An opening/closing device 1 according to the present invention includes a gate 10 that receives a flow of a sewage W in an upright state, and can fall toward a downstream side of the flow and a first spring 52a that generates a force for bringing the gate 10 into an upright state, wherein the first spring 52 generates a force insufficient for bringing the gate 10 into the upright state if the gate 10 is in a fallen state, and generates a force sufficient for bringing the gate into the upright state if the gate 10 is tilted by an angle equal to or less than a predetermined angle.Type: ApplicationFiled: February 2, 2010Publication date: December 1, 2011Applicants: NIPPON KOEI CO., LTD., KANSEI COMPANY, TOKYO METROPOLITAN SEWERAGE SERVICE CORPORATIONInventors: Hiroshi Komatsu, Motonobu Ito, Kazuhiro Yamanouchi, Kenji Hasegawa, Iwao Ito
-
Patent number: 4351175Abstract: An arc-like formed product, such as bearing metal, is manufactured from a strip of sheet metal, by introducing the metal strip in a tangential direction to a cylindrical forming surface of a die, bending and rolling the metal strip along the forming surface of the die into an arc shape, cutting both ends of the formed metal strip at both ends of the forming surface of the die while pressing the metal strip against the forming surface of the die in a range of at least 1/20 to 1/3 of its length, transferring the formed strip piece of metal into a coining die and coining the same.Type: GrantFiled: September 16, 1980Date of Patent: September 28, 1982Assignee: Taiho Kogyo Kabushiki KaishaInventors: Shigeo Ichikawa, Motonobu Ito, Makoto Aiba