Patents by Inventor Yoshiaki Tominaga
Yoshiaki Tominaga 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: 20240300205Abstract: A method of manufacturing a laminate includes: placing a mold having one surface on which a plurality of recesses are formed; applying a coating material to the one surface of the mold on which the recesses are formed, and dropping the coating material applied to portions of the recesses into the recesses while remaining the coating material applied to a portion of the one surface other than the recesses on the one surface of the mold; drying the coating material to form a polymer coating film having through-holes formed in portions corresponding to the recesses; pressing a support against the mold with the polymer coating film interposed between the support and the mold; and peeling the polymer coating film off together with the support from the mold to obtain a laminate including the support and the polymer coating film.Type: ApplicationFiled: January 17, 2022Publication date: September 12, 2024Applicant: Toray Industries, Inc.Inventors: Yoshiaki Tominaga, Go Kondo, Satoko Morioka, Yohei Noda, Kiyoshi Minoura
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Publication number: 20240165546Abstract: A filter having a plurality of filter pores penetrating one surface and another surface of the filter, wherein the filter pore has a first opening on the one surface and a second opening on the another surface, a ratio (L1/W1) of a major axis diameter L1 to a minor axis diameter W1 of the first opening is 1.00 or more and 1.20 or less, the minor axis diameter W1 is 7.0 ?m or more and 9.0 ?m or less, a ratio (L2/W2) of a major axis diameter L2 to a minor axis diameter W2 of the second opening is 1.00 or more and 1.20 or less, and a ratio (W2/W1) of the minor axis diameter W2 to the minor axis diameter W1 and a ratio (L2/L1) of the major axis diameter L2 to the major axis diameter L1 are both 1.20 or more and 1.50 or less.Type: ApplicationFiled: March 18, 2022Publication date: May 23, 2024Inventors: Noriyoshi Sawabata, Kohei Morita, Chiho Obayashi, Hirokazu Sakaguchi, Yoshiaki Tominaga, Toru Arakane, Satoko Morioka, Yohei Noda
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Patent number: 8475692Abstract: Nanofibers are manufactured while preventing explosions from occurring due to solvent evaporation. An effusing unit (201) which effuses solution (300) into a space, a first charging unit (202) which electrically charges the solution (300) by applying an electric charge to the solution (300), a guiding unit (206) which forms an air channel for guiding the manufactured nanofibers (301), a gas flow generating unit (203) which generates, inside the guiding unit (206), gas flow for transporting the nanofibers, a diffusing unit (240) which diffusing the nanofibers (301) guided by the guiding unit (206), a collecting apparatus which electrically attracts and collects the nanofibers (301), and a drawing unit (102) which draws the gas flow together with the evaporated component evaporated from the solution (300) are included.Type: GrantFiled: March 23, 2009Date of Patent: July 2, 2013Assignee: Panasonic CorporationInventors: Hiroto Sumida, Takahiro Kurokawa, Kazunori Ishikawa, Yoshiaki Tominaga, Mikio Takezawa, Mitsuhiro Takahashi, Masahide Yokoyama
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Patent number: 8383539Abstract: A carried material is carried only on a surface of nano-fibers. It includes a raw material liquid spray step that sprays raw material liquid, which is a raw material of nano-fibers, into a space, a raw material liquid electrically charging step, which applies an electric charge to the raw material liquid and makes the raw material liquid electrically charged, a nano-fiber manufacturing step that manufactures the nano-fibers by having the electrically charged and sprayed raw material liquid explode electrostatically, a carried material electrically charging step that electrically charges a carried material carried on the nano-fibers with a polarity opposite to a polarity of the electrically charged nano-fibers, and a mixing step that mixes the manufactured nano-fibers and the electrically charged carried material in a space.Type: GrantFiled: March 9, 2009Date of Patent: February 26, 2013Assignee: Panasonic CorporationInventors: Hiroto Sumida, Takahiro Kurokawa, Kazunori Ishikawa, Yoshiaki Tominaga, Mikio Takezawa, Mitsuhiro Takahashi, Takatoshi Mitsushima
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Patent number: 8186987Abstract: Provided is a nano-fiber manufacturing apparatus which manufactures nano-fibers by an electrostatic explosion, and has a low possibility of explosion even when a flammable solvent is used. The nano-fiber manufacturing apparatus (101) having an ejection unit (110) which ejects solution (200) that is raw material liquid for nano-fibers (200) to a manufacturing space in which the nano-fibers (200) are manufactured by an electrostatic explosion of the solution (200), and a charging unit which charges the solution (200). The nano-fiber manufacturing apparatus (101) includes a gas supply source (103) which supplies safety gas to change an atmosphere of the manufacturing space, in which the solution (200) is ejected, into a low oxygen atmosphere, and a partition (102) which maintains the manufacturing space at a lower oxygen atmosphere than an atmosphere of an outside space of the partition (102).Type: GrantFiled: February 19, 2008Date of Patent: May 29, 2012Assignee: Panasonic CorporationInventors: Hiroto Sumida, Takahiro Kurokawa, Kazunori Ishikawa, Mitsuhiro Takahashi, Mikio Takezawa, Yoshiaki Tominaga
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Patent number: 8163227Abstract: A nanofiber spinning method and device for producing a high strength and uniform yarn made of nanofibers. The device includes: a nanofiber producing unit (2) which produces nanofibers (11) by extruding polymer solution, prepared by dissolving polymeric substances in a solvent, through small holes (7) and charging the polymer solution, and by allowing the polymer solution to be stretched by an electrostatic explosion, and which allows the nanofibers to travel in a single direction; a collecting electrode unit (3) to which an electric potential different from that of the charged polymer solution is applied, and which attracts the produced nanofibers (11) while simultaneously rotating and twisting the nanofibers, and gathers them for forming a yarn (20) made of the nanofibers (11); and a collecting unit (5) which collects the yarn (20) passed through the center of the collecting electrode unit (3).Type: GrantFiled: May 1, 2008Date of Patent: April 24, 2012Assignee: Panasonic CorporationInventors: Hiroto Sumida, Takahiro Kurokawa, Kazunori Ishikawa, Mitsuhiro Takahashi, Mikio Takezawa, Yoshiaki Tominaga
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Publication number: 20120091606Abstract: A method for manufacturing a fine polymer including: generating superheated steam by a superheated steam generating unit (101); adjusting the pressure of the generated superheated steam by a pressure adjusting unit (102); receiving a polymer by a reception unit (103); heating the received polymer to a predetermined temperature by a heating unit (104); discharging the heated polymer through a first discharge port (111); and discharging the superheated steam through a second discharge port (121) at the same time as the time when the heated polymer is discharged. Here, the second discharge port (121) surrounds the first discharge port (111), and the first discharge port (111) and the second discharge port (121) face the same direction.Type: ApplicationFiled: December 27, 2011Publication date: April 19, 2012Inventors: Mitsuhiro TAKAHASHI, Mikio Takezawa, Yoshiaki Tominaga, Takahiro Kurokawa, Hiroto Sumida, Kazunori Ishikawa
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Patent number: 8110136Abstract: Nanofibers are formed from a polymer material by rotating a conductive rotating container having a plurality of small holes while supplying a polymer solution formed by dissolving a polymer material in a solvent into the rotating container, charging the polymer solution discharged from the small holes of the rotating container by charging means, and drawing the discharged filamentous polymer solution by centrifugal force and an electrostatic explosion resulting from evaporation of the solvent. The nanofibers from this production step are oriented and made to flow from one side toward the other side in a shaft center direction of the rotating container by a reflecting electrode and/or blowing means, or those nanofibers are deposited, to produce a polymer web. The nanofibers and the polymer web using these nanofibers can be produced uniformly by a simple configuration with good productivity.Type: GrantFiled: November 20, 2007Date of Patent: February 7, 2012Assignee: Panasonic CorporationInventors: Mitsuhiro Takahashi, Mikio Takezawa, Yoshiaki Tominaga, Takahiro Kurokawa, Kazunori Ishikawa, Hiroto Sumida
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Publication number: 20110059261Abstract: Nanofibers are manufactured while preventing explosions from occurring due to solvent evaporation. An effusing unit (201) which effuses solution (300) into a space, a first charging unit (202) which electrically charges the solution (300) by applying an electric charge to the solution (300), a guiding unit (206) which forms an air channel for guiding the manufactured nanofibers (301), a gas flow generating unit (203) which generates, inside the guiding unit (206), gas flow for transporting the nanofibers, a diffusing unit (240) which diffusing the nanofibers (301) guided by the guiding unit (206), a collecting apparatus which electrically attracts and collects the nanofibers (301), and a drawing unit (102) which draws the gas flow together with the evaporated component evaporated from the solution (300) are included.Type: ApplicationFiled: March 23, 2009Publication date: March 10, 2011Inventors: Hiroto Sumida, Takahiro Kurokawa, Kazunori Ishikawa, Yoshiaki Tominaga, Mikio Takezawa, Mitsuhiro Takahashi, Masahide Yokoyama
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Publication number: 20110014542Abstract: A carried material is carried only on a surface of nano-fibers. It includes a raw material liquid spray step that sprays raw material liquid (300), which is a raw material of nano-fibers (301), into a space, a raw material liquid electrically charging step, which applies an electric charge to the raw material liquid (300) and makes the raw material liquid electrically charged, a nano-fiber manufacturing step that manufactures the nano-fibers (301) by having the electrically'charged and sprayed raw material liquid (300) explode electrostatically, a carried material electrically charging step that electrically charges a carried material (302) carried on the nano-fibers (301) with a polarity opposite to a polarity of the electrically charged nano-fibers (301), and a mixing step that mixes the said manufactured nano-fibers (301) and the electrically charged carried material (302) in a space.Type: ApplicationFiled: March 9, 2009Publication date: January 20, 2011Applicant: PANASONIC CORPORATIONInventors: Hiroto Sumida, Takahiro Kurokawa, Kazunori Ishikawa, Yoshiaki Tominaga, Mikio Takezawa, Mitsuhiro Takahashi, Takatoshi Mitsushima
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Publication number: 20100187729Abstract: A method for manufacturing a fine polymer including: generating superheated steam by a superheated steam generating unit (101); adjusting the pressure of the generated superheated steam by a pressure adjusting unit (102); receiving a polymer by a reception unit (103); heating the received polymer to a predetermined temperature by a heating unit (104); discharging the heated polymer through a first discharge port (111); and discharging the superheated steam through a second discharge port (121) at the same time as the time when the heated polymer is discharged. Here, the second discharge port (121) surrounds the first discharge port (111), and the first discharge port (111) and the second discharge port (121) face the same direction.Type: ApplicationFiled: July 4, 2008Publication date: July 29, 2010Inventors: Mitsuhiro Takahashi, Mikio Takezawa, Yoshiaki Tominaga, Takahiro Kurokawa, Hiroto Sumida, Kazunori Ishikawa
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Publication number: 20100148404Abstract: Provided is a nanofiber spinning method and device for producing a high strength and uniform yarn made of nanofibers with high productivity and at a low cost. The device includes: a nanofiber producing unit (2) which produces nanofibers (11) by extruding polymer solution, prepared by dissolving polymeric substances in a solvent, through small holes (7) and charging the polymer solution, and by allowing the polymer solution to be stretched by an electrostatic explosion, and which allows the nanofibers to travel in a single direction; a collecting electrode unit (3) to which an electric potential different from that of the charged polymer solution is applied, and which attracts the produced nanofibers (11) while simultaneously rotating and twisting the nanofibers, and gathers them for forming a yarn (20) made of the nanofibers (11); and a collecting unit (5) which collects the yarn (20) passed through the center of the collecting electrode unit (3).Type: ApplicationFiled: May 1, 2008Publication date: June 17, 2010Inventors: Hiroto Smida, Takahiro Kurokawa, Kazunori Ishikawa, Mitsurhiro Takahashi, Mikio Takezawa, Yoshiaki Tominaga
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Publication number: 20100148405Abstract: An object of the present invention is to stabilize the properties of nanofibers produced. Solution prepared by dissolving a polymeric substance in a solvent is supplied into a conductive ejection container having a plurality of ejection holes. The ejection container is rotated and electrostatic explosions of the solution discharged through the ejection holes are caused so that nanofibers are produced. In the above method for producing nanofibers, in the case where the amount of the solution contained in the ejection container exceeds a predetermined amount, the amount of the solution exceeding the predetermined amount overflow the ejection container. The overflowed solution is collected and resupplied to the ejection container.Type: ApplicationFiled: May 12, 2008Publication date: June 17, 2010Inventors: Hiroto Sumida, Takahiro Kurokawa, Kazunori Ishikawa, Mitsuhiro Takahashi, Mikio Takezawa, Yoshiaki Tominaga
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Publication number: 20100092687Abstract: Provided is a nano-fiber manufacturing apparatus which manufactures nano-fibers by an electrostatic explosion, and has a low possibility of explosion even when a flammable solvent is used. The nano-fiber manufacturing apparatus (101) having an ejection unit (110) which ejects solution (200) that is raw material liquid for nano-fibers (200) to a manufacturing space in which the nano-fibers (200) are manufactured by an electrostatic explosion of the solution (200), and a charging unit which charges the solution (200). The nano-fiber manufacturing apparatus (101) includes a gas supply source (103) which supplies safety gas to change an atmosphere of the manufacturing space, in which the solution (200) is ejected, into a low oxygen atmosphere, and a partition (102) which maintains the manufacturing space at a lower oxygen atmosphere than an atmosphere of an outside space of the partition (102).Type: ApplicationFiled: February 19, 2008Publication date: April 15, 2010Inventors: Hiroto Sumida, Takahiro Kurokawa, Kazunori Ishikawa, Mitsushiro Takahasi, Mikio Takezawa, Yoshiaki Tominaga
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Publication number: 20100072674Abstract: Nanofibers are formed from a polymer material by rotating a conductive rotating container having a plurality of small holes while supplying a polymer solution formed by dissolving a polymer material in a solvent into the rotating container, charging the polymer solution discharged from the small holes of the rotating container by charging means, and drawing the discharged filamentous polymer solution by centrifugal force and an electrostatic explosion resulting from evaporation of the solvent. The nanofibers from this production step are oriented and made to flow from one side toward the other side in a shaft center direction of the rotating container by a reflecting electrode and/or blowing means, or those nanofibers are deposited, to produce a polymer web. The nanofibers and the polymer web using these nanofibers can be produced uniformly by a simple configuration with good productivity.Type: ApplicationFiled: November 20, 2007Publication date: March 25, 2010Applicant: PANASONIC CORPORATIONInventors: Mitsuhiro Takahashi, Mikio Takezawa, Yoshiaki Tominaga, Takahiro Kurokawa, Kazunori Ishikawa, Hiroto Sumida
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Publication number: 20040006677Abstract: A method for processing a microcomputer having a central processing unit detects an interrupt process. The method disrupts a first task under an execution. Then, the method determines the interrupt process and assigns a second task for the interrupt process. The method sets up a second bank for the second task and executes the second task at the second bank. Further more, the method resumes the first task after executing the second task.Type: ApplicationFiled: March 27, 2003Publication date: January 8, 2004Applicant: Kabushiki Kaisha ToshibaInventors: Hirotomo Kobayashi, Yoshiaki Tominaga