Patents by Inventor Hirosi Fukuda
Hirosi Fukuda 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: 20130277359Abstract: A PTC resistor according to the present invention comprises at least one PTC composition which comprises at least one resin and at least two conductive materials. The at least two conductive materials comprises at least two conductive materials different from each other. The at least one PTC composition may comprise a first PTC composition which comprises a first resin and at least one first conductive material and a second PTC composition which is compounded with the first PTC composition and comprises a second resin and at least one second conductive material. The at least one first conductive material is at least partially different from the at least one second conductive material. One of the first resin and the second resin may comprise a reactant resin and a reactive resin which is cross-linked with the reactant resin. The PTC resistor may comprise a flame retardant agent. The PTC resistor may comprise a liquid-resistant resin.Type: ApplicationFiled: June 12, 2013Publication date: October 24, 2013Inventors: Hirosi FUKUDA, Katsuhiko UNO, Takahito ISHII, Keizo NAKAJIMA, Akihiro UMEDA
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Publication number: 20100038357Abstract: A PTC resistor according to the present invention comprises at least one PTC composition which comprises at least one resin and at least two conductive materials. The at least two conductive materials comprises at least two conductive materials different from each other. The at least one PTC composition may comprise a first PTC composition which comprises a first resin and at least one first conductive material and a second PTC composition which is compounded with the first PTC composition and comprises a second resin and at least one second conductive material. The at least one first conductive material is at least partially different from the at least one second conductive material. One of the first resin and the second resin may comprise a reactant resin and a reactive resin which is cross-linked with the reactant resin. The PTC resistor may comprise a flame retardant agent. The PTC resistor may comprise a liquid-resistant resin.Type: ApplicationFiled: January 22, 2008Publication date: February 18, 2010Applicant: Panasonic CorporationInventors: Hirosi Fukuda, Katsuhiko Uno, Takahito Ishii, Keizo Nakajima, Akihiro Umeda
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Publication number: 20100038356Abstract: The sheet heating element according to the present invention comprises a substrate sheet made of an electrically insulative material and lines made of electrically conductive materials and arranged with a distance between them on the substrate sheet. The sheet heating element further comprises at least one PTC resistor sheet being in electrical contact with the lines and configured to heat up in a self-regulated manner in response to a supply of electricity from the lines. The at least one PTC resistor sheet may comprise a flame retardant agent and/or a liquid-resistant resin. The sheet heating element according to the present invention has excellent flexibility, durability, and reliability, as well as low manufacturing cost. When the sheet heating element of the present invention is used in a car seat heater or in a steering wheel heater, the passenger feels comfortable when seated thereon, and the driver feels comfortable when touching the steering wheel.Type: ApplicationFiled: January 22, 2008Publication date: February 18, 2010Applicant: Panasonic CorporationInventors: Hirosi Fukuda, Katsuhiko Uno, Takahito Ishii, Keizo Nakajima, Akihiro Umeda
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Publication number: 20090051196Abstract: The seating element has an electrically insulative substrate, a pair of electrodes disposed on the substrate, and a polymer resistor electrically connected to the electrodes. The polymer resistor includes resin composition cross-linked via one of oxygen atom and nitrogen atom, and at least one of fibrous conductor and flake-like conductor mixed in the resin composition.Type: ApplicationFiled: July 13, 2006Publication date: February 26, 2009Applicant: MATSUSHITA ELECTRIC INDUSTRIAL., LTD.Inventors: Takahito Ishii, Seishi Terakado, Katsuhiko Uno, Hirosi Fukuda, Hiroyuki Ogino, Keizo Nakajima
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Patent number: 7467558Abstract: A piezoelectric element includes a piezoelectric composition pressure sensitive substance, a first electrode, a second electrode and a covering layer. The piezoelectric composition pressure sensitive substance includes a piezoelectric ceramic powder and a flexible organic polymer. The first and second electrodes are connected to the piezoelectric composition pressure sensitive substance and electrically insulated from each other. The covering layer is provided outside of the piezoelectric ceramic powder and suppresses absorption of the water by the piezoelectric ceramic powder.Type: GrantFiled: August 3, 2005Date of Patent: December 23, 2008Assignee: Panasonic CorporationInventors: Hirosi Fukuda, Takashi Hashida, Yuko Fujii, Takaiki Nomura, Shuji Itou, Takahiro Sasaki
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Publication number: 20070186689Abstract: A piezoelectric element includes a piezoelectric composition pressure sensitive substance, a first electrode, a second electrode and a covering layer. The piezoelectric composition pressure sensitive substance includes a piezoelectric ceramic powder and a flexible organic polymer. The first and second electrodes are connected to the piezoelectric composition pressure sensitive substance and electrically insulated from each other. The covering layer is provided outside of the piezoelectric ceramic powder and suppresses absorption of the water by the piezoelectric ceramic powder.Type: ApplicationFiled: August 3, 2005Publication date: August 16, 2007Inventors: Hirosi Fukuda, Takashi Hashida, Yuko Fujii, Takaiki Nomura, Shuji Itou, Takahiro Sasaki
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Patent number: 6643341Abstract: A method employing multisignal encoded start pulses and end pulses for data transmission by use of radio waves, carries out encoding so that a very large number of kinds of patterns (not less than 1014 kinds are possible) can be effected with one frequency. In the binary system, encoding needs a large number of signal pulses and high frequency, and the frequency of the carrier wave becomes very high also. The multisignal method of this invention makes it possible to reduce the encoding bits and the carrier wave frequency by using level sensing and width comparison techniques. This method also removes noise owing to its level sensing and width comparison techniques which have not been used in conventional digital communication systems. Therefore, the reception of erroneous information, the occurrence of unclear audio-visual images, and noise trouble are prevented in the use of radio waves.Type: GrantFiled: October 22, 1999Date of Patent: November 4, 2003Inventor: Hirosi Fukuda
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Patent number: 6628596Abstract: This invention resolves the limitations of the binary data encoding and storage system by encoding multi-valued meaning to data elements prior to the recording and storing of these multi-valued data elements based on a plurality of quantities in a memory point. In order to make a single memory point suitable to record multi-valued data elements, where each value has a special meaning in a particular recording, quantities of magnetism or light, like its intensity, shape, etc., are digitized or analogized so that each of the quantities can be recorded and extracted. The invention additionally includes systems and methods for using multi-valued data elements, including wireless transmission.Type: GrantFiled: October 19, 2001Date of Patent: September 30, 2003Inventor: Hirosi Fukuda
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Publication number: 20030152658Abstract: There is provided an extrusion head that is capable of largely increasing a production speed rather than a conventional head that extrudes supplies a high viscous melt-coating composition.Type: ApplicationFiled: January 28, 2003Publication date: August 14, 2003Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Hiroyuki Ogino, Shigeki Ueda, Hirosi Fukuda, Tooru Sugimori, Mitsuo Ebisawa
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Publication number: 20020118474Abstract: This invention resolves the limitations of the binary data encoding and storage system by encoding multi-valued meaning to data elements prior to the recording and storing of these multi-valued data elements based on a plurality of quantities in a memory point. In order to make a single memory point suitable to record multi-valued data elements, where each value has a special meaning in a particular recording, quantities of magnetism or light, like its intensity, shape, etc., are digitized or analogized so that each of the quantities can be recorded and extracted. The invention additionally includes systems and methods for using multi-valued data elements, including wireless transmission.Type: ApplicationFiled: December 25, 2001Publication date: August 29, 2002Inventor: Hirosi Fukuda
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Publication number: 20020097652Abstract: This invention resolves the limitations of the binary data encoding and storage system by encoding multi-valued meaning to data elements prior to the recording and storing of these multi-valued data elements based on a plurality of quantities in a memory point. In order to make a single memory point suitable to record multi-valued data elements, where each value has a special meaning in a particular recording, quantities of magnetism or light, like its intensity, shape, etc., are digitized or analogized so that each of the quantities can be recorded and extracted. The invention additionally includes systems and methods for using multi-valued data elements, including wireless transmission.Type: ApplicationFiled: October 19, 2001Publication date: July 25, 2002Inventor: Hirosi Fukuda
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Patent number: 6324143Abstract: Some of various multisignal (a plurality of signals except zero in the conventional binary system ) which are a variety of memories employed as signals instead of a single memory in the binary system are recorded in a medium for multisignal, by moving a recorder for multisignal to a determined position. An extractor is moved to a determined position to extract a part of the multisignal which have been recorded at that position in advance. When any change has to be made to the recorded multisignal, the change is made by the recorder. The multisignal can be used in two or more pairs as well. When processing a signal in the multisignal method in which various signals are used instead of 1 in the conventional binary system, the medium erases, writes, and corrects the signal with a machine which uses multisignal of light, magnetism, etc. that can be clearly discriminated from one another.Type: GrantFiled: September 27, 1999Date of Patent: November 27, 2001Inventor: Hirosi Fukuda