Patents by Inventor Hirotomo Shimizu
Hirotomo Shimizu 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: 10980972Abstract: A catheter having a catheter shaft and a tip. The catheter shaft includes an inner layer, a first reinforcing layer disposed around an outer periphery of the inner layer, an intermediate layer, a second reinforcing layer disposed around an outer periphery of the intermediate layer, and an outer layer that covers the second reinforcing layer. The tip includes a proximal end portion that extends in an axial direction of the catheter and is joined to at least the intermediate layer and the outer layer, between the first reinforcing layer and the second reinforcing layer. The proximal end portion increases the joining strength between the intermediate layer and the tip and the joining strength between the outer layer and the tip. As a result, it is possible to prevent the tip from easily detaching from the catheter shaft.Type: GrantFiled: February 22, 2019Date of Patent: April 20, 2021Assignee: ASAHI INTECC CO., LTD.Inventor: Hirotomo Shimizu
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Publication number: 20190184135Abstract: A catheter having a catheter shaft and a tip. The catheter shaft includes an inner layer, a first reinforcing layer disposed around an outer periphery of the inner layer, an intermediate layer, a second reinforcing layer disposed around an outer periphery of the intermediate layer, and an outer layer that covers the second reinforcing layer. The tip includes a proximal end portion that extends in an axial direction of the catheter and is joined to at least the intermediate layer and the outer layer, between the first reinforcing layer and the second reinforcing layer. The proximal end portion increases the joining strength between the intermediate layer and the tip and the joining strength between the outer layer and the tip. As a result, it is possible to prevent the tip from easily detaching from the catheter shaft.Type: ApplicationFiled: February 22, 2019Publication date: June 20, 2019Applicant: ASAHI INTECC CO., LTD.Inventor: Hirotomo SHIMIZU
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Patent number: 10258767Abstract: A catheter having a catheter shaft and a tip. The catheter shaft includes an inner layer, a first reinforcing layer disposed around an outer periphery of the inner layer, an intermediate layer, a second reinforcing layer disposed around an outer periphery of the intermediate layer, and an outer layer that covers the second reinforcing layer. The tip includes a proximal end portion that extends in an axial direction of the catheter and is joined to at least the intermediate layer and the outer layer, between the first reinforcing layer and the second reinforcing layer. The proximal end portion increases the joining strength between the intermediate layer and the tip and the joining strength between the outer layer and the tip. As a result, it is possible to prevent the tip from easily detaching from the catheter shaft.Type: GrantFiled: March 17, 2017Date of Patent: April 16, 2019Assignee: ASAHI INTECC CO., LTD.Inventor: Hirotomo Shimizu
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Patent number: 10245412Abstract: A catheter includes a catheter body having a lumen and a resin front end tip having a lumen that is in communication with the lumen of the catheter body and that is attached to the front/distal end of the catheter body. The catheter body and front end tip further include a coil body and/or a braid such that the coil body and/or braid are arranged along the lumen. Additionally, the catheter further includes a reinforcement body covering the coil body and/or the braid in the front end tip.Type: GrantFiled: April 28, 2016Date of Patent: April 2, 2019Assignee: ASAHI INTECC CO., LTD.Inventors: Hirotomo Shimizu, Masatomo Ishikawa
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Publication number: 20180056037Abstract: A catheter having a catheter shaft and a tip. The catheter shaft includes an inner layer, a first reinforcing layer disposed around an outer periphery of the inner layer, an intermediate layer, a second reinforcing layer disposed around an outer periphery of the intermediate layer, and an outer layer that covers the second reinforcing layer. The tip includes a proximal end portion that extends in an axial direction of the catheter and is joined to at least the intermediate layer and the outer layer, between the first reinforcing layer and the second reinforcing layer. The proximal end portion increases the joining strength between the intermediate layer and the tip and the joining strength between the outer layer and the tip. As a result, it is possible to prevent the tip from easily detaching from the catheter shaft.Type: ApplicationFiled: March 17, 2017Publication date: March 1, 2018Applicant: ASAHI INTECC CO., LTD.Inventor: Hirotomo SHIMIZU
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Publication number: 20170113018Abstract: A catheter includes a catheter body having a lumen and a resin front end tip having a lumen that is in communication with the lumen of the catheter body and that is attached to the front/distal end of the catheter body. The catheter body and front end tip further include a coil body and/or a braid such that the coil body and/or braid are arranged along the lumen. Additionally, the catheter further includes a reinforcement body covering the coil body and/or the braid in the front end tip.Type: ApplicationFiled: April 28, 2016Publication date: April 27, 2017Applicant: ASAHI INTECC CO., LTD.Inventors: Hirotomo SHIMIZU, Masatomo ISHIKAWA
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Patent number: 6808706Abstract: A method for keeping the quality of an aqueous parenteral solution of thrombomodulin which is not in a frozen or freeze-dried state but in a liquid form in storage and distribution, characterized in that the aqueous thrombomodulin solution containing an effective amount of soluble thrombomodulin and a buffer component exhibiting a buffering activity in a pH range of 5 to 7.0 has a pH of 5 to 7.0 and that (a) the aqueous thrombomodulin solution further contains a surfactant and is in a state aseptically filled into a case or (b) the aqueous thrombomodulin solution is the form of a prefilled syringe preparation produced by aseptically filling the thrombomodulin solution into a syringe substantially without any empty space.Type: GrantFiled: May 8, 2000Date of Patent: October 26, 2004Assignee: Asaki Kasei Pharma CorporationInventors: Masaki Yui, Akira Yokozawa, Tomoyo Murata, Kazuhisa Tsuruta, Hirotomo Shimizu