Patents by Inventor Kenichi Hamanaka
Kenichi Hamanaka 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: 11817266Abstract: A conductive paste includes a conductive metal powder and a curable resin. The conductive metal powder includes Ag, Cu, and Ni. In the conductive metal powder, a mass ratio of Ag is about 3.0 wt % or more and about 10.0 wt % or less, a mass ratio of Cu is about {(1?mass ratio of Ag/100)×70} wt % or more and about {(1?mass ratio of Ag/100)×95} wt % or less, and a mass ratio of Ni is about {(1?mass ratio of Ag/100)×5} wt % or more and about {(1?mass ratio of Ag/100)×30} wt % or less.Type: GrantFiled: March 2, 2022Date of Patent: November 14, 2023Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Kenichi Hamanaka, Kota Zenzai
-
Publication number: 20220293345Abstract: A conductive paste includes a conductive metal powder and a curable resin. The conductive metal powder includes Ag, Cu, and Ni. In the conductive metal powder, a mass ratio of Ag is about 3.0 wt % or more and about 10.0 wt % or less, a mass ratio of Cu is about {(1?mass ratio of Ag/100)×70} wt % or more and about {(1?mass ratio of Ag/100)×95} wt % or less, and a mass ratio of Ni is about {(1?mass ratio of Ag/100)×5} wt % or more and about {(1?mass ratio of Ag/100)×30} wt % or less.Type: ApplicationFiled: March 2, 2022Publication date: September 15, 2022Inventors: Kenichi HAMANAKA, Kota ZENZAI
-
Patent number: 11369412Abstract: A sensor insertion device comprises a main body, needle slider, disposal slider, spring, puncture knob, and opening mechanism (window member and handle). The needle slider grips a needle and a sensor on a first end side, and is slidable inside the main body. The disposal slider is slidable inside the main body. The puncture knob has an insertion hole into which the rear end portion of the needle slider can be inserted. The opening mechanism puts the insertion hole into a closed state when the needle slider is being slid in the sensor insertion direction, and, puts the insertion hole in an open state in which the second end side of the needle slider has been inserted into the insertion hole by opening up the contact portion between the puncture knob and the second end side of the needle slider when the puncture operation is complete.Type: GrantFiled: April 7, 2017Date of Patent: June 28, 2022Assignee: PHC HOLDINGS CORPORATIONInventors: Yoshiteru Ii, Kenichi Hamanaka, Ryuji Shimizu, Akira Nishio, Takashi Endoh, Kazuaki Edagawa, Tetsuya Norikane, Junko Ikeda
-
Publication number: 20190133638Abstract: A sensor insertion device comprises a main body, needle slider, disposal slider, spring, puncture knob, and opening mechanism (window member and handle). The needle slider grips a needle and a sensor on a first end side, and is slidable inside the main body. The disposal slider is slidable inside the main body. The puncture knob has an insertion hole into which the rear end portion of the needle slider can be inserted. The opening mechanism puts the insertion hole into a closed state when the needle slider is being slid in the sensor insertion direction, and, puts the insertion hole in an open state in which the second end side of the needle slider has been inserted into the insertion hole by opening up the contact portion between the puncture knob and the second end side of the needle slider when the puncture operation is complete.Type: ApplicationFiled: April 7, 2017Publication date: May 9, 2019Inventors: Yoshiteru II, Kenichi HAMANAKA, Ryuji SHIMIZU, Akira NISHIO, Takashi ENDOH, Kazuaki EDAGAWA, Tetsuya NORIKANE, Junko IKEDA
-
Patent number: 10283273Abstract: A ceramic electronic component includes a rectangular or substantially rectangular parallelepiped-shaped stack in which a ceramic layer and an internal electrode are alternately stacked and an external electrode provided on a portion of a surface of the stack and electrically connected to the internal electrode. The external electrode includes an inner external electrode covering a portion of the surface of the stack and including a mixture of a resin component and a metal component and an outer external electrode covering the inner external electrode and including a metal component. A volume occupied by the resin component in the inner external electrode is within a prescribed range.Type: GrantFiled: January 30, 2017Date of Patent: May 7, 2019Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Kenichi Hamanaka, Kota Zenzai, Taku Dekura, Kiyotaka Maegawa
-
Patent number: 10186378Abstract: A multilayer ceramic capacitor includes a laminate of ceramic layers and internal electrodes, and a pair of external electrodes located on both end surfaces of the laminate and electrically connected to the internal electrodes. Each of the pair of external electrodes includes an underlying electrode layer on the surface of the laminate and including Cu, a bonding portion partially provided on a surface of the underlying electrode layer and including a Cu3Sn alloy, and a conductive resin layer provided on surfaces of the underlying electrode layer and the bonding portion, and a total area of the bonding portion is not less than about 2.7% and not more than about 40.6% of a total area of the underlying electrode layer.Type: GrantFiled: December 8, 2017Date of Patent: January 22, 2019Assignee: Murata Manufacturing Co., Ltd.Inventors: Kenichi Hamanaka, Satoshi Matsuno
-
Publication number: 20180166215Abstract: A multilayer ceramic capacitor includes a laminate of ceramic layers and internal electrodes, and a pair of external electrodes located on both end surfaces of the laminate and electrically connected to the internal electrodes. Each of the pair of external electrodes includes an underlying electrode layer on the surface of the laminate and including Cu, a bonding portion partially provided on a surface of the underlying electrode layer and including a Cu3Sn alloy, and a conductive resin layer provided on surfaces of the underlying electrode layer and the bonding portion, and a total area of the bonding portion is not less than about 2.7% and not more than about 40.6% of a total area of the underlying electrode layer.Type: ApplicationFiled: December 8, 2017Publication date: June 14, 2018Inventors: Kenichi HAMANAKA, Satoshi MATSUNO
-
Patent number: 9941049Abstract: A multilayer ceramic capacitor includes a ceramic element body including internal electrodes therein. External electrodes are provided on end surfaces of the ceramic element body and electrically connected to exposed portions of respective ones of the internal electrodes. Each of the external electrodes includes a sintered metal layer, a conductive resin layer, and a plating layer.Type: GrantFiled: March 26, 2015Date of Patent: April 10, 2018Assignee: Murata Manufacturing Co., Ltd.Inventors: Kenichi Hamanaka, Hidetaka Sugiyama, Kota Zenzai
-
Patent number: 9799452Abstract: A ceramic electronic component includes a rectangular or substantially rectangular parallelepiped-shaped stack in which a ceramic layer and an internal electrode are alternately stacked and an external electrode provided on a portion of a surface of the stack and electrically connected to the internal electrode. The external electrode includes an inner external electrode covering a portion of the surface of the stack and including a mixture of a resin component and a metal component and an outer external electrode covering the inner external electrode and including a metal component. The inner external electrode includes a plurality of holes. An average opening diameter of the plurality of holes is not greater than about 2.5 ?m. Some or all of the plurality of holes are embedded with the metal component of the outer external electrode.Type: GrantFiled: June 16, 2014Date of Patent: October 24, 2017Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Kenichi Hamanaka, Kota Zenzai, Taku Dekura, Kiyotaka Maegawa
-
Patent number: 9672963Abstract: A ceramic electronic component includes a rectangular or substantially rectangular parallelepiped shaped laminate in which a ceramic layer and an internal electrode are alternately laminated and an external electrode provided on a portion of a surface of the laminate and electrically connected to the internal electrode. The external electrode includes an inner external electrode covering a portion of the surface of the laminate and including a mixture of a resin component and a metal component and an outer external electrode covering the inner external electrode and including a metal component.Type: GrantFiled: June 16, 2014Date of Patent: June 6, 2017Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Kenichi Hamanaka, Kota Zenzai, Taku Dekura, Kiyotaka Maegawa
-
Publication number: 20170140874Abstract: A ceramic electronic component includes a rectangular or substantially rectangular parallelepiped-shaped stack in which a ceramic layer and an internal electrode are alternately stacked and an external electrode provided on a portion of a surface of the stack and electrically connected to the internal electrode. The external electrode includes an inner external electrode covering a portion of the surface of the stack and including a mixture of a resin component and a metal component and an outer external electrode covering the inner external electrode and including a metal component. A volume occupied by the resin component in the inner external electrode is within a prescribed range.Type: ApplicationFiled: January 30, 2017Publication date: May 18, 2017Inventors: Kenichi HAMANAKA, Kota ZENZAI, Taku DEKURA, Kiyotaka MAEGAWA
-
Patent number: 9595375Abstract: A ceramic electronic component includes a rectangular or substantially rectangular parallelepiped-shaped stack in which a ceramic layer and an internal electrode are alternately stacked and an external electrode provided on a portion of a surface of the stack and electrically connected to the internal electrode. The external electrode includes an inner external electrode covering a portion of the surface of the stack and including a mixture of a resin component and a metal component and an outer external electrode covering the inner external electrode and including a metal component. A volume occupied by the resin component in the inner external electrode is within a prescribed range.Type: GrantFiled: June 16, 2014Date of Patent: March 14, 2017Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Kenichi Hamanaka, Kota Zenzai, Taku Dekura, Kiyotaka Maegawa
-
Publication number: 20160141103Abstract: A multilayer ceramic capacitor includes a ceramic element body including internal electrodes therein. External electrodes are provided on end surfaces of the ceramic element body and electrically connected to exposed portions of respective ones of the internal electrodes. Each of the external electrodes includes a sintered metal layer, a conductive resin layer, and a plating layer.Type: ApplicationFiled: March 26, 2015Publication date: May 19, 2016Inventors: Kenichi HAMANAKA, Hidetaka SUGIYAMA, Kota ZENZAI
-
Patent number: 9111692Abstract: A method for manufacturing a laminated ceramic electronic component, which includes the steps of preparing a laminate chip having opposed end edges of internal electrodes exposed at opposed side surfaces of the laminate chip; forming a first insulator section and a second insulator section, respectively, on opposed side surfaces of the laminate chip by pressing against a metal plate with a volume of grooves filled with a paste, and swinging the metal plate in any direction when pulling the laminate chip away from the metal plate; and firing the laminate chip with the first insulator section and second insulator section formed thereon. The paste has a viscosity of 500 Pa·s to 2500 Pa·s, and a content C (vol %) of an inorganic solid satisfies a predetermined condition.Type: GrantFiled: December 13, 2013Date of Patent: August 18, 2015Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Kenichi Hamanaka, Eiji Ito, Yasuharu Yamashita, Kenichi Okajima, Togo Matsui
-
Publication number: 20140375173Abstract: A ceramic electronic component includes a rectangular or substantially rectangular parallelepiped shaped laminate in which a ceramic layer and an internal electrode are alternately laminated and an external electrode provided on a portion of a surface of the laminate and electrically connected to the internal electrode. The external electrode includes an inner external electrode covering a portion of the surface of the laminate and including a mixture of a resin component and a metal component and an outer external electrode covering the inner external electrode and including a metal component.Type: ApplicationFiled: June 16, 2014Publication date: December 25, 2014Inventors: Kenichi HAMANAKA, Kota ZENZAI, Taku DEKURA, Kiyotaka MAEKAWA
-
Publication number: 20140373324Abstract: A ceramic electronic component includes a rectangular or substantially rectangular parallelepiped-shaped stack in which a ceramic layer and an internal electrode are alternately stacked and an external electrode provided on a portion of a surface of the stack and electrically connected to the internal electrode. The external electrode includes an inner external electrode covering a portion of the surface of the stack and including a mixture of a resin component and a metal component and an outer external electrode covering the inner external electrode and including a metal component. The inner external electrode includes a plurality of holes. An average opening diameter of the plurality of holes is not greater than about 2.5 ?m. Some or all of the plurality of holes are embedded with the metal component of the outer external electrode.Type: ApplicationFiled: June 16, 2014Publication date: December 25, 2014Inventors: Kenichi HAMANAKA, Kota ZENZAI, Taku DEKURA, Kiyotaka MAEKAWA
-
Publication number: 20140375175Abstract: A ceramic electronic component includes a rectangular or substantially rectangular parallelepiped-shaped stack in which a ceramic layer and an internal electrode are alternately stacked and an external electrode provided on a portion of a surface of the stack and electrically connected to the internal electrode. The external electrode includes an inner external electrode covering a portion of the surface of the stack and including a mixture of a resin component and a metal component and an outer external electrode covering the inner external electrode and including a metal component. A volume occupied by the resin component in the inner external electrode is within a prescribed range.Type: ApplicationFiled: June 16, 2014Publication date: December 25, 2014Inventors: Kenichi HAMANAKA, Kota ZENZAI, Taku DEKURA, Kiyotaka MAEKAWA
-
Publication number: 20140096890Abstract: A method for manufacturing a laminated ceramic electronic component, which includes the steps of preparing a laminate chip having opposed end edges of internal electrodes exposed at opposed side surfaces of the laminate chip; forming a first insulator section and a second insulator section, respectively, on opposed side surfaces of the laminate chip by pressing against a metal plate with a volume of grooves filled with a paste, and swinging the metal plate in any direction when pulling the laminate chip away from the metal plate; and firing the laminate chip with the first insulator section and second insulator section formed thereon. The paste has a viscosity of 500 Pa·s to 2500 Pa·s, and a content C (vol %) of an inorganic solid satisfies a predetermined condition.Type: ApplicationFiled: December 13, 2013Publication date: April 10, 2014Applicant: MURATA MANUFACTURING CO., LTD.Inventors: Kenichi Hamanaka, Eiji Ito, Yasuharu Yamashita, Kenichi Okajima, Togo Matsui
-
Patent number: 8657762Abstract: A blood test device (21) ensuring successful measurement wherein fingers scarcely slip out from the blood test device and blood never sticks to other sites in the course from the puncture of the patient's skin to the completion of the blood test. This blood test device (21) comprises a cartridge (24) in which sensors (23) pooling blood oozing out from the punctured skin are stored in a layered state, a transport unit transporting a single sensor sheet (23) from the inside of the cartridge (24) to the outside, a holder (25) holding the transported sensor (23), a laser emitting unit (26) puncturing the skin in the state where the sensor (23) is held by the holder (25), and a pump (28) keeping the inside of the holder (25) and the inside of the cartridge (24) under negative pressure.Type: GrantFiled: July 18, 2008Date of Patent: February 25, 2014Assignee: Panasonic CorporationInventors: Tetsuya Takashima, Masaki Fujiwara, Takeshi Nishida, Yoshinori Amano, Toshiki Matsumoto, Kenichi Hamanaka, Keisuke Matsumura, Yohei Hashimoto
-
Patent number: 8500655Abstract: A blood test apparatus having a simple constitution whereby stable measurement can be conducted by surely sampling the blood in an amount being small but sufficient for the test without placing too much burden on a patient. When a first skin contact sensor of this apparatus detects the skin, driving of a negative pressure unit is initiated. Thus, the skin rises and comes into contact with a second skin contact sensor. After piercing into the skin, the negative pressure supply is once ceased. Next, the negative pressure is applied again for a definite period of time. Thus, the opening in the skin is broadened, which facilitates the flow out of the blood.Type: GrantFiled: June 3, 2011Date of Patent: August 6, 2013Assignee: Panasonic CorporationInventors: Masaki Fujiwara, Yoshinori Amano, Kenichi Hamanaka, Motonori Uchiyama, Masataka Nadaoka, Toshihiro Akiyama, Koji Miyoshi