Patents by Inventor Takashi Takezawa
Takashi Takezawa 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: 12387882Abstract: A capacitor includes a capacitor element having a predetermined liquid preparation held between a pair of electrodes facing each other across a separator, a body case for housing the capacitor element, and a sealing member made of rubber for sealing seals the body case. A supplying portion is provided in contact with the sealing member to supply the liquid preparation held in the capacitor element to the sealing member. The liquid preparation has a lipid-soluble sealing member deterioration preventing agent dissolved in a lipophilic solvent. The sealing member deterioration preventing agent supplied by the supplying portion to the sealing member permeates the sealing member. The ratio by weight of the sealing member deterioration preventing agent in the sealing member to the sealing member is 0.1% by weight to 25% by weight.Type: GrantFiled: February 28, 2020Date of Patent: August 12, 2025Assignee: SUN Electronic Industries Corp.Inventors: Takashi Takezawa, Masakazu Hosogi, Hirokazu Nishikori
-
Patent number: 12283437Abstract: A capacitor 1 includes a capacitor element 3 holding solution between an anode foil 5 and a cathode foil 7 that are wound up with a separator 6 in between, a body case 2 for housing the capacitor element 3, and a sealing member 4 for sealing the body case 2. A part of the separator 6 makes contact, at a plurality of points or over an area, with the face of the sealing member 4 facing the capacitor element 3 so as to rest on that face. The solution contains, dissolved in a lipophilic solvent, deterioration preventing agent that solidifies by oxidation. The solution is supplied through the separator 6 to the sealing member 4 and permeates the sealing member 4, so that a coating 17 resulting from the agent solidifying coats the outer face of the sealing member 4, leaving the solution present in the sealing member 4.Type: GrantFiled: January 12, 2024Date of Patent: April 22, 2025Assignee: SUN Electronic Industries Corp.Inventors: Takashi Takezawa, Masakazu Hosogi, Hirokazu Nishikori
-
Publication number: 20240347280Abstract: An electrolytic capacitor 1 includes: a capacitor element 3 in which an anode foil 5 and a cathode foil 7 each having a dielectric oxide film face each other across a separator 6; a body case 2 that houses the capacitor element 3; and a sealing member 4 that seals the body case 2. An electrolyte and a hydrophilic compound are held between the anode foil 5 and the cathode foil 7. A sealing member deterioration preventing agent immiscible with the hydrophilic compound is arranged inside the body case 2.Type: ApplicationFiled: August 23, 2022Publication date: October 17, 2024Applicant: SUN Electronic Industries Corp.Inventors: Hirokazu NISHIKORI, Takashi TAKEZAWA, Masakazu HOSOGI, Tadahito ITO
-
Patent number: 12027323Abstract: A capacitor includes a capacitor element that holds a predetermined solution between an anode foil and a cathode foil wound up with a separator in between, a body case that is formed in the shape of a bottomed tube closed at one end with a wall and open at the other end to have an opening, a liquid supply sheet that is arranged between the inner face of the case and the outer face of the element, and a sealing member that seals the opening. The solution has a sealing member deterioration preventing agent dissolved in a lipophilic solvent. The sheet has an absorption portion that makes contact with the separator to absorb the solution and a supply portion that makes contact with the sealing member to supply it with the solution.Type: GrantFiled: February 28, 2020Date of Patent: July 2, 2024Assignee: SUN Electronic Industries Corp.Inventors: Takashi Takezawa, Masakazu Hosogi
-
Publication number: 20240194415Abstract: A capacitor 1 includes a capacitor element 3 holding solution between an anode foil 5 and a cathode foil 7 that are wound up with a separator 6 in between, a body case 2 for housing the capacitor element 3, and a sealing member 4 for sealing the body case 2. A part of the separator 6 makes contact, at a plurality of points or over an area, with the face of the sealing member 4 facing the capacitor element 3 so as to rest on that face. The solution contains, dissolved in a lipophilic solvent, deterioration preventing agent that solidifies by oxidation. The solution is supplied through the separator 6 to the sealing member 4 and permeates the sealing member 4, so that a coating 17 resulting from the agent solidifying coats the outer face of the sealing member 4, leaving the solution present in the sealing member 4.Type: ApplicationFiled: January 12, 2024Publication date: June 13, 2024Applicant: SUN Electronic Industries Corp.Inventors: Takashi TAKEZAWA, Masakazu HOSOGI, Hirokazu NISHIKORI
-
Patent number: 11990286Abstract: A capacitor 1 includes a capacitor element 3 holding solution between an anode foil 5 and a cathode foil 7 that are wound up with a separator 6 in between, a body case 2 for housing the capacitor element 3, and a sealing member 4 for sealing the body case 2. A part of the separator 6 makes contact, at a plurality of points or over an area, with the face of the sealing member 4 facing the capacitor element 3 so as to rest on that face. The solution contains, dissolved in a lipophilic solvent, deterioration preventing agent that solidifies by oxidation. The solution is supplied through the separator 6 to the sealing member 4 and permeates the sealing member 4, so that a coating 17 resulting from the agent solidifying coats the outer face of the sealing member 4, leaving the solution present in the sealing member 4.Type: GrantFiled: September 13, 2019Date of Patent: May 21, 2024Assignee: SUN ELECTRONIC INDUSTRIES CORP.Inventors: Takashi Takezawa, Masakazu Hosogi, Hirokazu Nishikori
-
Patent number: 11915887Abstract: A capacitor 1 includes a capacitor element 3 holding solution between an anode foil 5 and a cathode foil 7 that are wound up with a separator 6 in between, a body case 2 for housing the capacitor element 3, and a sealing member 4 for sealing the body case 2. A part of the separator 6 makes contact, at a plurality of points or over an area, with the face of the sealing member 4 facing the capacitor element 3 so as to rest on that face. The solution contains, dissolved in a lipophilic solvent, deterioration preventing agent that solidifies by oxidation. The solution is supplied through the separator 6 to the sealing member 4 and permeates the sealing member 4, so that a coating 17 resulting from the agent solidifying coats the outer face of the sealing member 4, leaving the solution present in the sealing member 4.Type: GrantFiled: July 29, 2020Date of Patent: February 27, 2024Assignee: SUN Electronic Industries Corp.Inventors: Takashi Takezawa, Masakazu Hosogi, Hirokazu Nishikori
-
Publication number: 20230326685Abstract: A capacitor 1 includes a capacitor element 3 having a predetermined liquid preparation held between a pair of electrodes 5, 7 facing each other across a separator 6, a body case 2 for housing the capacitor element 3, and a sealing member 4 made of rubber for sealing seals the body case 2. A supplying portion is provided in contact with the sealing member 4 to supply the liquid preparation held in the capacitor element 3 to the sealing member 4. The liquid preparation has a lipid-soluble sealing member deterioration preventing agent dissolved in a lipophilic solvent. The sealing member deterioration preventing agent supplied by the supplying portion to the sealing member 4 permeates the sealing member 4. The ratio by weight of the sealing member deterioration preventing agent in the sealing member 4 to the sealing member 4 is 0.1% by weight to 25% by weight.Type: ApplicationFiled: February 28, 2020Publication date: October 12, 2023Applicant: SUN Electronic Industries Corp.Inventors: Takashi TAKEZAWA, Masakazu HOSOGI, Hirokazu NISHIKORI
-
Publication number: 20230140448Abstract: A capacitor includes a capacitor element that holds a predetermined solution between an anode foil and a cathode foil wound up with a separator in between, a body case that is formed in the shape of a bottomed tube closed at one end with a wall and open at the other end to have an opening, a liquid supply sheet that is arranged between the inner face of the case and the outer face of the element, and a sealing member that seals the opening. The solution has a sealing member deterioration preventing agent dissolved in a lipophilic solvent. The sheet has an absorption portion that makes contact with the separator to absorb the solution and a supply portion that makes contact with the sealing member to supply it with the solution.Type: ApplicationFiled: February 28, 2020Publication date: May 4, 2023Applicant: SUN Electronic Industries Corp.Inventors: Takashi TAKEZAWA, Masakazu HOSOGI
-
Publication number: 20220367123Abstract: A capacitor 1 includes a capacitor element 3 holding solution between an anode foil 5 and a cathode foil 7 that are wound up with a separator 6 in between, a body case 2 for housing the capacitor element 3, and a sealing member 4 for sealing the body case 2. A part of the separator 6 makes contact, at a plurality of points or over an area, with the face of the sealing member 4 facing the capacitor element 3 so as to rest on that face. The solution contains, dissolved in a lipophilic solvent, deterioration preventing agent that solidifies by oxidation. The solution is supplied through the separator 6 to the sealing member 4 and permeates the sealing member 4, so that a coating 17 resulting from the agent solidifying coats the outer face of the sealing member 4, leaving the solution present in the sealing member 4.Type: ApplicationFiled: September 13, 2019Publication date: November 17, 2022Applicant: SUN Electronic Industries Corp.Inventors: Takashi TAKEZAWA, Masakazu HOSOGI, Hirokazu NISHIKORI
-
Publication number: 20220328255Abstract: A capacitor 1 includes a capacitor element 3 holding solution between an anode foil 5 and a cathode foil 7 that are wound up with a separator 6 in between, a body case 2 for housing the capacitor element 3, and a sealing member 4 for sealing the body case 2. A part of the separator 6 makes contact, at a plurality of points or over an area, with the face of the sealing member 4 facing the capacitor element 3 so as to rest on that face. The solution contains, dissolved in a lipophilic solvent, deterioration preventing agent that solidifies by oxidation. The solution is supplied through the separator 6 to the sealing member 4 and permeates the sealing member 4, so that a coating 17 resulting from the agent solidifying coats the outer face of the sealing member 4, leaving the solution present in the sealing member 4.Type: ApplicationFiled: July 29, 2020Publication date: October 13, 2022Applicant: SUN Electronic Industries Corp.Inventors: Takashi TAKEZAWA, Masakazu HOSOGI, Hirokazu NISHIKORI
-
Patent number: 11380493Abstract: An electrolytic capacitor includes a capacitor element, a body case, and a sealing body. The capacitor element has a cathode foil and an anode foil wound up with a separator in between, and has a prescribed solution held between the cathode foil and the anode foil. The body case houses the capacitor element. The sealing body seals the body case. The solution is a fat-soluble antioxidant dissolved in a lypophilic solvent and the separator is configured to be in contact with the sealing body.Type: GrantFiled: September 20, 2018Date of Patent: July 5, 2022Assignee: SUN Electronic Industries Corp.Inventors: Takashi Takezawa, Masakazu Hosogi, Hajime Kimachi, Yuya Nagaike, Takahisa Adachi
-
Publication number: 20210327653Abstract: An electrolytic capacitor comprises: a capacitor element in which an anode foil and a cathode foil are wound, with a separator sandwiched therebetween, and a prescribed solution is held between the anode foil and the cathode foil; a body case housing the capacitor element; and a sealing member which seals the body case. The solution is a lipid-soluble antioxidant dissolved in a lypophilic solvent and the separator is configured to be in contact with the sealing member.Type: ApplicationFiled: September 20, 2018Publication date: October 21, 2021Applicant: SUN Electronic Industries Corp.Inventors: Takashi TAKEZAWA, Masakazu HOSOGI, Hajime KIMACHI, Yuya NAGAIKE, Takahisa ADACHI
-
Balloon catheter, its fabrication method, and method for fixedly mounting a balloon on catheter tube
Publication number: 20090321010Abstract: To provide a balloon catheter having a flexible and highly expandable balloon so as to prevent the inner wall of the blood vessel from being damaged by the passage of the balloon. In a balloon catheter aimed to be stayed in a blood vessel and to be used mainly for the occlusion of a blood vessel, the balloon comprises a material selected from materials which have sufficient flexibility for preventing a blood vessel blocking operation from giving a damage to a vascular wall, have sufficient elasticity with its shrink characteristics when removing the catheter, and prevent a thrombus due to a direct contact to blood; and a maximum stretching of the material of said balloon in the state stayed in the blood vessel is defined so as to exceed a maximum stretching of said balloon itself.Type: ApplicationFiled: July 29, 2009Publication date: December 31, 2009Applicant: Bi-SMEDIX INC.Inventors: Yosuke Yoshino, Masanori Kimura, Takashi Takezawa -
Balloon catheter, its fabrication method, and method for fixedly mounting a balloon on catheter tube
Publication number: 20080136059Abstract: To provide a balloon catheter having a flexible and highly expandable balloon so as to prevent the inner wall of the blood vessel from being damaged by the passage of the balloon In a balloon catheter aimed to be stayed in a blood vessel and to be used mainly for the occlusion of a blood vessel, the balloon comprises a material selected from materials which have sufficient flexibility for preventing a blood vessel blocking operation from giving a damage to a vascular wall, have sufficient elasticity with its shrink characteristics when removing the catheter, and prevent a thrombus due to a direct contact to blood; and a maximum stretching of the material of said balloon in the state stayed in the blood vessel is defined so as to exceed a maximum stretching of said balloon itself.Type: ApplicationFiled: November 21, 2007Publication date: June 12, 2008Applicant: Bi-SMEDIX INC.Inventors: Yosuke Yoshino, Masanori Kimura, Takashi Takezawa