Patents by Inventor Kazumasa Maeda
Kazumasa Maeda 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: 20240177897Abstract: A magnetic powder includes: a plurality of magnetic particles including at least either one of a permanent magnet and a soft magnetic material; a first silicon compound covering at least a portion of the surfaces of the magnetic particles; and a second silicon compound covering at least a portion of the surfaces of the magnetic particles. The first silicon compound includes an alkyl group and silicon bonded to the alkyl group. The second silicon compound includes an alkyl chain, silicon bonded to one end of the alkyl chain, and a glycidyl group located at the other end of the alkyl chain. A number m of carbon atoms of the alkyl chain included in the second silicon compound is larger than a number n of carbon atoms of the alkyl group included in the first silicon compound.Type: ApplicationFiled: April 15, 2022Publication date: May 30, 2024Inventors: Kazumasa TAKEUCHI, Arisa TAIRA, Teruo ITOH, Hideo MAEDA, Chio ISHIHARA
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Patent number: 10131170Abstract: The present invention aims principally to provide a protective layer transfer sheet that can prevent occurrence of fusion between a receiving layer and a transfer layer and occurrence of peeling traces when the transfer layer is peeled from the receiving layer, even in the case that thermal energy applied on transfer of the transfer layer is increased and can obtain a high quality printed article and to provide a protective layer transfer sheet that can impart extremely good scratch resistance to the surface of a printed article. The protective layer transfer sheet includes a substrate, and a transfer layer provided on a surface of the substrate, and the transfer layer includes a binder resin and one or more substances selected from the group consisting of phosphoric acid esters, olefin-maleic acid copolymers, and amino polyether-modified silicone oils.Type: GrantFiled: August 3, 2017Date of Patent: November 20, 2018Assignee: Dai Nippon Printing Co., Ltd.Inventors: Suguru Yabe, Tomohiro Harada, Kazumasa Maeda, Munenori Ieshige
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Publication number: 20170326848Abstract: The present invention aims principally to provide a protective layer transfer sheet that can prevent occurrence of fusion between a receiving layer and a transfer layer and occurrence of peeling traces when the transfer layer is peeled from the receiving layer, even in the case that thermal energy applied on transfer of the transfer layer is increased and can obtain a high quality printed article and to provide a protective layer transfer sheet that can impart extremely good scratch resistance to the surface of a printed article. The protective layer transfer sheet includes a substrate, and a transfer layer provided on a surface of the substrate, and the transfer layer includes a binder resin and one or more substances selected from the group consisting of phosphoric acid esters, olefin-maleic acid copolymers, and amino polyether-modified silicone oils.Type: ApplicationFiled: August 3, 2017Publication date: November 16, 2017Applicant: Dai Nippon Printing Co., Ltd.Inventors: Suguru Yabe, Tomohiro Harada, Kazumasa Maeda, Munenori Ieshige
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Patent number: 9764579Abstract: The present invention aims principally to provide a protective layer transfer sheet that can prevent occurrence of fusion between a receiving layer and a transfer layer and occurrence of peeling traces when the transfer layer is peeled from the receiving layer, even in the case that thermal energy applied on transfer of the transfer layer is increased and can obtain a high quality printed article and to provide a protective layer transfer sheet that can impart extremely good scratch resistance to the surface of a printed article. The protective layer transfer sheet includes a substrate, and a transfer layer provided on a surface of the substrate, and the transfer layer includes a binder resin and one or more substances selected from the group consisting of phosphoric acid esters, olefin-maleic acid copolymers, and amino polyether-modified silicone oils.Type: GrantFiled: September 19, 2014Date of Patent: September 19, 2017Assignee: Dai Nippon Printing Co., Ltd.Inventors: Suguru Yabe, Tomohiro Harada, Kazumasa Maeda, Munenori Ieshige
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Publication number: 20160221376Abstract: The present invention aims principally to provide a protective layer transfer sheet that can prevent occurrence of fusion between a receiving layer and a transfer layer and occurrence of peeling traces when the transfer layer is peeled from the receiving layer, even in the case that thermal energy applied on transfer of the transfer layer is increased and can obtain a high quality printed article and to provide a protective layer transfer sheet that can impart extremely good scratch resistance to the surface of a printed article. A protective layer transfer sheet 100 comprises a substrate 1, and a transfer layer 10 provided on a surface of the substrate 1, and the transfer layer 10 comprises a binder resin and one or more substances selected from the group of phosphoric acid esters, olefin-maleic acid copolymers, and amino polyether-modified silicone oils.Type: ApplicationFiled: September 19, 2014Publication date: August 4, 2016Applicant: DAI NIPPON PRINTING CO., LTD.Inventors: Suguru YABE, Tomohiro HARADA, Kazumasa MAEDA, Munenori IESHIGE
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Patent number: 9278570Abstract: Provided is a protective layer transfer sheet which includes a protective layer, whereby it becomes possible to form an image on the protective layer set on a print without causing the abnormal transfer of a dye layer, the breakage of the dye layer and the like, and it also becomes possible to achieve a satisfactory level of plasticizer resistance of the print. The protective layer transfer sheet including a substrate and a protective layer peelably formed on the substrate, wherein the protective layer includes one or both of a cellulose ester having a number average molecular weight of not less than 15000 and not more than 30000 and a vinyl chloride-vinyl acetate copolymer having a number average molecular weight of not less than 15000 and not more than 30000, and a cellulose ester having a number average molecular weight of not more than 7000.Type: GrantFiled: September 5, 2013Date of Patent: March 8, 2016Assignee: DAI NIPPON PRINTING CO., LTD.Inventors: Suguru Yabe, Yoshimasa Kobayashi, Kazumasa Maeda, Kazuya Yoshida
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Publication number: 20150258834Abstract: Provided is a protective layer transfer sheet which includes a protective layer, whereby it becomes possible to form an image on the protective layer set on a print without causing the abnormal transfer of a dye layer, the breakage of the dye layer and the like, and it also becomes possible to achieve a satisfactory level of plasticizer resistance of the print. The protective layer transfer sheet including a substrate and a protective layer peelably formed on the substrate, wherein the protective layer includes one or both of a cellulose ester having a number average molecular weight of not less than 15000 and not more than 30000 and a vinyl chloride-vinyl acetate copolymer having a number average molecular weight of not less than 15000 and not more than 30000, and a cellulose ester having a number average molecular weight of not more than 7000.Type: ApplicationFiled: September 5, 2013Publication date: September 17, 2015Applicant: DAI NIPPON PRINTING CO., LTD.Inventors: Suguru Yabe, Yoshimasa Kobayashi, Kazumasa Maeda, Kazuya Yoshida
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Patent number: 6296621Abstract: The present invention provides a receptacle used in a passive drug delivery system. The receptacle includes first flow path for supplying along a fluid conduit a medical liquid, second flow path for introducing the medical liquid into a container containing a beneficial agent, third flow path for delivering a mixed solution containing the medical liquid and agent, and a guide valve for controlling the flow path by closing or opening the flow path.Type: GrantFiled: August 23, 1996Date of Patent: October 2, 2001Assignee: Baxter International Inc.Inventors: Kouichirou Masuda, Kazumasa Maeda, Haruki Kazama, Brian J. Gorman
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Patent number: 5941848Abstract: The present invention provides an apparatus for introducing a reconstituted drug in a drug vial into a medical liquid while venting any gas within the vial to the atmosphere. The assembly includes a receptacle disposed in the middle of a fluid conduit for the medical fluid and which has an upper chamber and lower chamber. The assembly also has a cannula assembly which mounts upon and pierces a septum of the receptacle and also a pierceable stopper of the drug vial. The cannula assembly includes a pair of coaxial cannulas which pierce the stopper of the drug vial and establish a first flow path from the upper chamber to the drug vial and a second flow path from the drug vial to the lower chamber. The cannula assemble also includes a cannula that forms a vent passage in fluid communication with an upper portion of the vial, upon the piercing of the drug vial, with an end of the vent passage communicating with the atmosphere.Type: GrantFiled: November 14, 1996Date of Patent: August 24, 1999Assignee: Baxter International Inc.Inventors: Fumiaki Nishimoto, Kazumasa Maeda, Haruki Kazama, Thomas A. Fowles
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Patent number: 5853406Abstract: The present invention provides a passive drug delivery apparatus which has a simplified structure. The present invention includes a junction member, disposed within the fluid conduit, for forming a first flow path to supply a medical liquid along the fluid conduit. A coupling member is provided, one end of which is to be coupled to the junction member, and the other end of which is to be inserted into a vial containing a beneficial agent. The coupling member includes structure to close the medical liquid flow path, a second flow path for introducing the medical liquid into the vial and a third flow path for delivering the mixed solution containing the medical liquid and agent.Type: GrantFiled: August 23, 1996Date of Patent: December 29, 1998Assignee: Baxter International Inc.Inventors: Kouichirou Masuda, Kazumasa Maeda, Haruki Kazama