Patents by Inventor Fumio Fukushima
Fumio Fukushima 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: 8188933Abstract: An antenna unit includes an antenna formed on a magnetic sheet. A transmission circuit includes an inductor, a matching capacitor, and the antenna connected in series, and a reception circuit includes the antenna, the matching capacitor, a resistor, and a capacitor connected in series. The antenna is formed as one turn, and the size of the antenna and the resistor involves a predetermined relationship.Type: GrantFiled: December 16, 2009Date of Patent: May 29, 2012Assignee: Panasonic CorporationInventors: Kouichi Nakamura, Takumi Naruse, Fumio Fukushima, Kuniaki Kiyosue
-
Publication number: 20100182144Abstract: Provided is a RFID magnetic sheet to be attached to an IC tag. The RFID magnetic sheet is provided with a plurality of stripe arranged layers (11a, 11b) whereupon a plurality of magnetic stripes (12) composed of a metal magnetic material are arranged at intervals, and a resin film (10) interposed between the respective stripe arranged layers. The arrangement relationship between the stripe arranged layers is set so that the magnetic stripes on each of the stripe arranged layers intersect with the magnetic stripes on the other stripe arranged layer in a planar shape.Type: ApplicationFiled: August 6, 2007Publication date: July 22, 2010Applicant: PANASONIC CORPORATIONInventors: Yoshihisa Yamashita, Seiichi Nakatani, Takashi Ichiryu, Fumio Fukushima, Kuniaki Kiyosue
-
Publication number: 20100156735Abstract: An antenna unit includes an antenna formed on a magnetic sheet. A transmission circuit includes an inductor, a matching capacitor, and the antenna connected in series, and a reception circuit includes the antenna, the matching capacitor, a resistor, and a capacitor connected in series. The antenna is formed as one turn, and the size of the antenna and the resistor involves a predetermined relationship.Type: ApplicationFiled: December 16, 2009Publication date: June 24, 2010Applicant: PANASONIC CORPORATIONInventors: Kouichi NAKAMURA, Takumi NARUSE, Fumio FUKUSHIMA, Kuniaki KIYOSUE
-
Patent number: 6494934Abstract: An air cleaner having a minus ion generator and a positive electrode. The minus ion generator carries a high minus voltage, and the positive electrode carries a high plus voltage. Preferably, the minus ion generator has a heater. The air cleaner may have an absorbing sheet positioned close to the positive electrode. Preferably, the minus ion generator is spaced apart from the positive electrode by a distance not less than a half of the maximum distance between walls of room. Preferably, the high plus voltage is not less than 4,000 Volts, and the absolute value of the high minus voltage is larger than the absolute value of the high plus voltage. Preferably, the air cleaner has a sterilizing function.Type: GrantFiled: December 22, 2000Date of Patent: December 17, 2002Assignee: Security System Co., Ltd.Inventor: Fumio Fukushima
-
Publication number: 20010025570Abstract: The air cleaner has a minus ion generator and a positive electrode. The minus ion generator carries a high minus voltage, and the positive electrode carries a high plus voltage. Preferably, the minus ion generator has a heater. The air cleaner may have an absorbing sheet positioned close to the positive electrode. Preferably, the minus ion generator is apart from the positive electrode by a distance not less than a half of the maximum distance between walls of room. Preferably, the high plus voltage is not less than 4,000 Volts, and the absolute value of the high minus voltage is larger than the absolute value of the high plus voltage. Preferably, the air cleaner has a sterilizing function.Type: ApplicationFiled: December 22, 2000Publication date: October 4, 2001Inventor: Fumio Fukushima
-
Patent number: 5248949Abstract: A flat type dielectric filter comprises a substantially U-shaped strip line formed such that each center frequency of spurious output deviates from each odd number frequency times the center frequency of the dielectric filter. That is, it comprises a first portion so curved to form an open loop and two second portions formed to have a larger width than the first portion, each of the second portions being provided to an end of the first portion such that each extends in the opposite direction to the other. In this filter, input/output electrodes confronting ends of U-shaped strip line can be formed on a different layer from the layer where the resonator is formed in order to reduce its size. Reduction of size can be obtained by vertically folding the U-shaped strip line extending horizontally. Terminals of this filter formed on the side surface have a first layer formed on the side surface and a second layer formed on the first layer.Type: GrantFiled: March 12, 1992Date of Patent: September 28, 1993Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kazuhiro Eguchi, Fumio Fukushima, Koji Nishimura, Katsumi Sasaki, Takehiko Yoneda, Hiromitsu Taki
-
Patent number: 5055809Abstract: A resonator having a strip line, the strip line comprising: a first portion forming an open loop; and two second portions, each provided to each end of the first portion, the second portions facing each other with a given distance therebetween, the distance and length of the second portion being determined such that necessary capacitance is provided. The capacitor is provided instead of a discrete capacitor for saving space and for reducing dielectric loss therein. A second resonator further comprises second and third capacitor having a semicircle strip-line patterns for providing capacitances between ends of the first portion and grounded planes which decrease the resonance frequency so that size of the second resonator are reduced. A third resonator also comprises the first capacitor, but arranged outside of the first portion. Capacitance of the first capacitor can be increased by teeth provided to the second portions.Type: GrantFiled: May 31, 1990Date of Patent: October 8, 1991Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Morikazu Sagawa, Haruyoshi Endo, Mitsuo Makimoto, Fumio Fukushima
-
Patent number: 4964587Abstract: A coiler has a plurality of frame units. Each frame unit includes a first frame having a free end portion facing to the periphery of a mandrel for coiling a band plate and a base end portion rotatably pivoted to a shaft parallel to the axis of the mandrel. A first drive unit moves the first frame. A second frame is rotatably pivoted at the free end portion of the first frame to a shaft parallel to the axis of the mandrel. A second drive unit moves the second frame. A pressing roller is rotatably supported by the second frame for assisting fastening of the band plate around the mandrel. A circular guide is provided on the second frame to face the mandrel.Type: GrantFiled: October 27, 1989Date of Patent: October 23, 1990Assignee: Mitsubishi Jukogyo Kabushiki KaishaInventors: Takehiko Oki, Fumio Fukushima, Katsusuke Kawanami
-
Patent number: 4594569Abstract: A humidity sensitive device for sensing the humidity of an ambient humidity comprising a humidity sensitive resistor 15 which comprises as main component at least one selected from the group consisting of ZrO.sub.2, TiO.sub.2, Nb.sub.2 O.sub.5 and Ta.sub.2 O.sub.5 and an electric heater 13 applied near and for heating and retaining the humidity sensitive resistor 15 at a temperature above 200.degree. C. The humidity sensitive resistor 15 and a fixed resistor are series connected across an AC voltage source 17, and a voltage across the humidity sensitive resistor 15 or the fixed resistor 16 is rectified by a AC/DC converter and compared with a reference voltage by a comparator, thereby an output responding to humidity in the atmosphere can be measured for a wide range of temperature.Type: GrantFiled: November 12, 1985Date of Patent: June 10, 1986Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Fumio Fukushima, Jiro Terada, Tsuneharu Nitta
-
Patent number: 4386295Abstract: A ceramic luminescent device, in which a luminescent screen of zinc sulfide layer with luminescent impurities is formed on a translucent zinc oxide sintered body, and the luminescent light emitted from said luminescent screen is derived through said zinc oxide body.The device can be constructed in a manner that said luminescent screen is excited either by an electric field or electron beam.Type: GrantFiled: May 16, 1980Date of Patent: May 31, 1983Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yosuke Fujita, Fumio Fukushima, Yoji Fukuda, Tsuneharu Nitta
-
Patent number: 4340839Abstract: Highly densed zinc sulfide ceramic materials, which essentially comprise zinc sulfide and alkali metals and/or alkaline earth metals and impurities acting as luminescent center, and which show a high brightness of cathode luminescence under irradiation of electron beam having a low energy, are easily made in the form of the sintered material, by heating the mixture of the said materials in inert or sulfuring atmosphere.Type: GrantFiled: December 20, 1979Date of Patent: July 20, 1982Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yosuke Fujita, Fumio Fukushima, Yoji Fukuda, Tsuneharu Nitta
-
Patent number: 4272397Abstract: Flake-like ceramic particles of zinc sulfide phosphor and method of preparing the same including the steps of preparing flake-like particles of basic zinc sulfate crystal doped with activator, sulfurizing in the particles carbon disulfide, and heating the sulfurized particles in hydrogen sulfide. Particularly by steeping said particles in a solution of alkaline earth metal salt prior to or after sulfurizing, grain growth in ceramic particles can be improved.Type: GrantFiled: May 31, 1979Date of Patent: June 9, 1981Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yoji Fukuda, Fumio Fukushima, Tomizo Matsuoka, Tsuneharu Nitta, Shigeru Hayakawa
-
Patent number: 4261965Abstract: Basic zinc compound flake-like crystalline material suited for use in crystal-oriented electronic devices and method for preparation thereof comprising the steps of preparing a solution including at least zinc ions and sulfate ions, and causing precipitation of zinc sulfate crystals by causing a reaction of components of said solution with alkali when said solution is at a temperature in the range 50.degree. to 100.degree. C. and has a pH value of in the range 4 to 6.5.Type: GrantFiled: June 14, 1979Date of Patent: April 14, 1981Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yoji Fukuda, Tsuneharu Nitta, Tomizo Matsuoka, Fumio Fukushima, Shigeru Hayakawa
-
Patent number: 4052329Abstract: In the firing of a cerium-activated Y.sub.2 O.sub.3 -SiO.sub.2 system phosphor such as Y.sub.2 SiO.sub.5 :Ce and Y.sub.2 Si.sub.2 O.sub.7 :Ce, the improvement of adding BaF.sub.2 in a mol ratio of BaF.sub.2 /Y.sub.2 O.sub.3 of 0.01-0.1 is disclosed which increases the luminosity, emission intensity or both of the phosphor. Phosphors having improved properties are conveniently prepared according to the disclosed process.Type: GrantFiled: June 7, 1976Date of Patent: October 4, 1977Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yoji Fukuda, Fumio Fukushima, Yoshinobu Tsujimoto, Masakazu Fukai, Shinji Sugai