Patents by Inventor Fumiaki Nakashima
Fumiaki Nakashima 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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Patent number: 10887702Abstract: To make it possible to take countermeasures against noises of a loudspeaker by means of a simple configuration. A loudspeaker 10 includes: a bobbin 15 that is provided with a voice coil 31; a diaphragm 13 that is connected to the bobbin 15; a frame 11 that supports the diaphragm 13; and a magnetic circuit section 17 that includes a magnet 22. The loudspeaker 10 further includes: a first conductive body 41 that is connected to the voice coil 31 and is led out to the outside of a bobbin 15A; and a second conductive body 51 that is connected to the first conductive body 41 and penetrates the magnet 22.Type: GrantFiled: May 8, 2018Date of Patent: January 5, 2021Assignee: CLARION CO., LTD.Inventors: Minoru Ueno, Takao Ishikawa, Fumiaki Nakashima
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Publication number: 20200053481Abstract: To make it possible to take countermeasures against noises of a loudspeaker by means of a simple configuration. A loudspeaker 10 includes: a bobbin 15 that is provided with a voice coil 31; a diaphragm 13 that is connected to the bobbin 15; a frame 11 that supports the diaphragm 13; and a magnetic circuit section 17 that includes a magnet 22. The loudspeaker 10 further includes: a first conductive body 41 that is connected to the voice coil 31 and is led out to the outside of a bobbin 15A; and a second conductive body 51 that is connected to the first conductive body 41 and penetrates the magnet 22.Type: ApplicationFiled: May 8, 2018Publication date: February 13, 2020Applicant: CLARION CO., LTD.Inventors: Minoru UENO, Takao ISHIKAWA, Fumiaki NAKASHIMA
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Patent number: 10328831Abstract: To make it possible to improve a low-tone reproducing ability with a simple structure in an acoustic device including speakers in a headrest. The acoustic device includes a core material of a closed structure functioning as a core of a headrest main body, acoustic speakers 50, 50 disposed in the core material, and hollow headrest stays 15, 15 that pierce through the core material. The headrest stays 15, 15 circulate the air on the inside of the core material to the outer side via hollow sections.Type: GrantFiled: May 15, 2015Date of Patent: June 25, 2019Assignees: CLARION CO., LTD., TACHI-S CO., LTD.Inventors: Naoki Takada, Fumiaki Nakashima, Takao Ishikawa, Takahiko Nagasawa, Yasuyuki Ito
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Patent number: 10237648Abstract: An object is to provide a sound collecting device and a method of controlling a sound collecting device with which it is possible to easily obtain audio of a speaking person with a high level of precision while keeping the number of component parts small and preventing the structure from becoming complicated. An audio processing unit 35 judges whether or not the current mode is an operation mode (a speech mode or a conversation mode) in which audio of an occupant of the vehicle serving as a speaking person is obtained (step S1A). When the current mode is another operation mode (an audio playback mode or a head position measuring mode), the audio processing unit 35 sets the directionality of a microphone array to be directed toward the outside of the occupant or to be non-directional (steps S4A and S5A) and obtains input audio of the microphone array.Type: GrantFiled: June 1, 2016Date of Patent: March 19, 2019Assignee: CLARION CO., LTD.Inventors: Naoki Takada, Fumiaki Nakashima
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Publication number: 20180295443Abstract: An object is to provide a sound collecting device and a method of controlling a sound collecting device with which it is possible to easily obtain audio of a speaking person with a high level of precision while keeping the number of component parts small and preventing the structure from becoming complicated. An audio processing unit 35 judges whether or not the current mode is an operation mode (a speech mode or a conversation mode) in which audio of an occupant of the vehicle serving as a speaking person is obtained (step S1A). When the current mode is another operation mode (an audio playback mode or a head position measuring mode), the audio processing unit 35 sets the directionality of a microphone array to be directed toward the outside of the occupant or to be non-directional (steps S4A and S5A) and obtains input audio of the microphone array.Type: ApplicationFiled: June 1, 2016Publication date: October 11, 2018Applicant: CLARION CO., LTD.Inventors: Naoki TAKADA, Fumiaki NAKASHIMA
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Patent number: 10064496Abstract: There is provided a head rest device 10 that does not impair safety of a seated person even when a secondary battery 35 is accommodated therein. An accommodation space 28 partitioned by a partitioning plate part 25 is provided inside a cushioning core material 12 of a head rest main body, and a secondary battery 35 is accommodated inside the accommodation space 28.Type: GrantFiled: May 14, 2015Date of Patent: September 4, 2018Assignee: CLARION CO., LTD.Inventors: Naoki Takada, Fumiaki Nakashima, Takao Ishikawa, Takahiko Nagasawa, Yasuyuki Ito
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Patent number: 9981613Abstract: To prevent a person from experiencing discomfort when touching portions of a headrest having built-in speakers; to enable the headrest to be formed compactly by arranging the speakers close to the body of the person; and to prevent any decrease in the acoustic pressure and/or acoustic quality of sound from the speakers. Provided are: a plurality of speakers 25a, 25b; fiber pads 15 provided to the front surfaces of the speakers 25a, 25b; a sound-insulating pad 16 provided between the fiber pads 15; and a surface skin 9 for covering the speakers 25a, 25b, the fiber pads 15, and the sound-insulating pad 16, the fiber pads 15 being formed from an elastic material that has a three-dimensional-mesh structure therein, and the sound-insulating pad 16 being formed from an elastic material for minimizing the transmission of sound.Type: GrantFiled: May 25, 2015Date of Patent: May 29, 2018Assignee: TACHI-S CO., LTD.Inventors: Yasuyuki Ito, Takahiko Nagasawa, Naoki Takada, Fumiaki Nakashima, Takao Ishikawa
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Patent number: 9975459Abstract: To make it possible to provide an acoustic device in a headrest device such that a standard of a shock is satisfied and the performance of the acoustic device can be efficiently exhibited. In the headrest device, a shock resistant surface is formed in a core material of a headrest main body, an opening is formed in the shock resistant surface, and a non-contact type acoustic microphone is disposed on the inner side of the opening.Type: GrantFiled: November 7, 2014Date of Patent: May 22, 2018Assignees: CLARION CO., LTD., TACHI-S CO., LTD.Inventors: Naoki Takada, Fumiaki Nakashima, Takao Ishikawa, Takahiko Nagasawa, Yasuyuki Ito, Junpei Yoshikawa
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Publication number: 20170156503Abstract: There is provided a head rest device 10 that does not impair safety of a seated person even when a secondary battery 35 is accommodated therein. An accommodation space 28 partitioned by a partitioning plate part 25 is provided inside a cushioning core material 12 of a head rest main body, and a secondary battery 35 is accommodated inside the accommodation space 28.Type: ApplicationFiled: May 14, 2015Publication date: June 8, 2017Applicants: CLARION CO., LTD., TACHI-S CO., LTD.Inventors: Naoki TAKADA, Fumiaki NAKASHIMA, Takao ISHIKAWA, Takahiko NAGASAWA, Yasuyuki ITO
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Publication number: 20170106775Abstract: To make it possible to improve a low-tone reproducing ability with a simple structure in an acoustic device including speakers in a headrest. The acoustic device includes a core material of a closed structure functioning as a core of a headrest main body, acoustic speakers 50, 50 disposed in the core material, and hollow headrest stays 15, 15 that pierce through the core material. The headrest stays 15, 15 circulate the air on the inside of the core material to the outer side via hollow sections.Type: ApplicationFiled: May 15, 2015Publication date: April 20, 2017Applicants: CLARION CO., LTD., TACHI-S CO., LTD.Inventors: Naoki TAKADA, Fumiaki NAKASHIMA, Takao ISHIKAWA, Takahiko NAGASAWA, Yasuyuki ITO
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Publication number: 20170072869Abstract: To prevent a person from experiencing discomfort when touching portions of a headrest having built-in speakers; to enable the headrest to be formed compactly by arranging the speakers close to the body of the person; and to prevent any decrease in the acoustic pressure and/or acoustic quality of sound from the speakers. Provided are: a plurality of speakers 25a, 25b; fiber pads 15 provided to the front surfaces of the speakers 25a, 25b; a sound-insulating pad 16 provided between the fiber pads 15; and a surface skin 9 for covering the speakers 25a, 25b, the fiber pads 15, and the sound-insulating pad 16, the fiber pads 15 being formed from an elastic material that has a three-dimensional-mesh structure therein, and the sound-insulating pad 16 being formed from an elastic material for minimizing the transmission of sound.Type: ApplicationFiled: May 25, 2015Publication date: March 16, 2017Applicant: TACHI-S CO., LTDInventors: Yasuyuki ITO, Takahiko NAGASAWA, Naoki TAKADA, Fumiaki NAKASHIMA, Takao ISHIKAWA
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Publication number: 20160257227Abstract: To make it possible to provide an acoustic device in a headrest device such that a standard of a shock is satisfied and the performance of the acoustic device can be efficiently exhibited. In the headrest device, a shock resistant surface is formed in a core material of a headrest main body, an opening is formed in the shock resistant surface, and a non-contact type acoustic microphone is disposed on the inner side of the opening.Type: ApplicationFiled: November 7, 2014Publication date: September 8, 2016Applicants: CLARION CO., LTD., TACHI-S CO., LTD.Inventors: Naoki TAKADA, Fumiaki NAKASHIMA, Takao ISHIKAWA, Takahiko NAGASAWA, Yasuyuki ITO, Junpei YOSHIKAWA
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Patent number: 8420403Abstract: A method for evaluating the caking property of sodium hydrogencarbonate crystal particles, characterized in that sodium hydrogencarbonate crystal particles are hermetically sealed in a packaging material having a water vapor transmission rate of at least 3 g/(m2·24 h) (at 40° C. with a relative humidity difference of 90%) as stipulated in JIS K7129 and left at rest at a temperature of from 17 to 35° C. at a carbon dioxide gas concentration of from 0.03 to 0.05 vol % at a relative humidity of from 40 to 95% for from 2 weeks to 3 months, and the proportion of agglomerated sodium hydrogencarbonate crystal particles is determined to evaluate the caking tendency. A novel test method for evaluating the caking property of sodium hydrogencarbonate crystal particles, capable of providing results of the caking property test with high reproducibility, quantitatively with high versatility, can be provided.Type: GrantFiled: January 3, 2007Date of Patent: April 16, 2013Assignee: Asahi Glass Company, LimitedInventors: Shintaro Kikuchi, Fumiaki Nakashima, Hisakazu Arima, Shigeru Sakurai, Takako Hirano
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Patent number: 8236268Abstract: A process for producing sodium hydrogencarbonate crystal particles having a low caking property, which entails subjecting sodium hydrogencarbonate crystal particles having an average particle size of from 50 to 500 ?m based on the mass to heat treatment at a temperature of from 70 to 95° C. by a heating gas having a carbon dioxide gas concentration of at most the concentration calculated by the formula: Carbon dioxide gas concentration=0.071×e(0.1×T)×R(?0.0005×T?0.9574), where T (° C.) is the temperature of sodium hydrogencarbonate crystals, and R (%) is the relative humidity around the crystals at the temperature of the crystals, provided that the upper limit of the carbon dioxide gas concentration is 100 vol % to form anhydrous sodium carbonate on the surface of the sodium hydrogencarbonate crystal particles with a content of anhydrous sodium carbonate of from 0.03 to 0.4 mass % in the sodium hydrogencarbonate crystals.Type: GrantFiled: December 27, 2006Date of Patent: August 7, 2012Assignee: Asahi Glass Company, LimitedInventors: Hachirou Hirano, Takako Hirano, legal representative, Shintaro Kikuchi, Fumiaki Nakashima, Hisakazu Arima, Shigeru Sakurai
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Patent number: 7713312Abstract: A process for producing an alkali metal hydrogencarbonate by reacting an aqueous solution containing alkali metal ions with carbon dioxide in a prescribed crystallizer to precipitate crystals of an alkali metal hydrogencarbonate, and in this process a part of a slurry containing the alkali metal hydrogencarbonate crystals in the aqueous solution is withdrawn from the crystallizer and, after dissolution of a part of the crystals, it is returned to the crystallizer.Type: GrantFiled: April 24, 2006Date of Patent: May 11, 2010Assignee: Asahi Glass Company, LimitedInventors: Fumiaki Nakashima, Hisakazu Arima, Shintaro Kikuchi, Hachiro Hirano
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Sodium hydrogencarbonate crystal particles having low caking property and process for producing them
Patent number: 7485369Abstract: Sodium hydrogencarbonate crystal particles, which comprise sodium hydrogencarbonate crystal particles having an average particle size of from 50 to 500 ?m based on the mass, and anhydrous sodium carbonate, and sodium carbonate monohydrate and/or Wegscheider's salt, present on the surface of the sodium hydrogencarbonate crystal particles in such amounts that the total content of anhydrous sodium carbonate, sodium carbonate monohydrate, Wegscheider's salt and sodium sesquicarbonate in the sodium hydrogencarbonate crystal particles is from 0.04 to 1 mass % as calculated as anhydrous sodium carbonate, anhydrous sodium carbonate accounts for at least 40 mass % of the total content, and sodium carbonate monohydrate and/or Wegscheider's salt accounts for from 5 to 60 mass % of the total content. Sodium hydrogencarbonate crystal particles having a low caking property, which are useful in the field of food products, pharmaceuticals, bath additives, etc.Type: GrantFiled: January 3, 2007Date of Patent: February 3, 2009Assignee: Asahi Glass Company, LimitedInventors: Takako Hirano, legal representative, Shintaro Kikuchi, Fumiaki Nakashima, Hisakazu Arima, Shigeru Sakurai, Hachirou Hirano -
Publication number: 20090016949Abstract: Sodium hydrogencarbonate crystal particles excellent in anti-caking property and anti-thermal decomposition property, and its production process, are provided. Sodium hydrogencarbonate crystal particles whose color 1 second after dropping of a phenolphthalein solution having a predetermined composition, is R=245 to 255, G=243 to 255 and B=245 to 255 in RGB 256 tone notation. The sodium hydrogencarbonate crystal particles are produced by subjecting sodium hydrogencarbonate crystal particles to a bicarbonation treatment in a humidified carbon dioxide gas atmosphere.Type: ApplicationFiled: September 12, 2008Publication date: January 15, 2009Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Hachirou Hirano, Takako Hirano, Hisakazu Arima, Shintaro Kikuchi, Fumiaki Nakashima, Shigeru Sakurai
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Publication number: 20070178037Abstract: A process for producing sodium hydrogencarbonate crystals, which comprise subjecting sodium hydrogencarbonate crystal powder having an average particle size of from 50 to 500 ?m based on the mass to heat treatment at a temperature of from 70 to 95° C. by a heating gas having a carbon dioxide gas concentration of at most the concentration calculated by the following formula (1): Carbon dioxide gas concentration=0.07l×e(0.1×T)×R(?0.0005×T?0.9574)??(1) (wherein T is the temperature (%) of sodium hydrogencarbonate crystals, and R is the relative humidity (%), provided that the upper limit of the carbon dioxide gas concentration is 100 vol %) with reference to the graph of FIG. 1 wherein the horizontal axis (X-axis) represents the relative humidity and the vertical axis (Y-axis) represents the carbon dioxide gas concentration, to form anhydrous sodium carbonate on the surface of the sodium hydrogencarbonate crystal particles with a content of anhydrous sodium carbonate of from 0.03 to 0.Type: ApplicationFiled: December 27, 2006Publication date: August 2, 2007Applicant: ASAHI GLASS CO., LTD.Inventors: Hachirou Hirano, Takako Hirano, Shintaro Kikuchi, Fumiaki Nakashima, Hisakazu Arima, Shigeru Sakurai
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SODIUM HYDROGENCARBONATE CRYSTAL PARTICLES HAVING LOW CAKING PROPERTY AND PROCESS FOR PRODUCING THEM
Publication number: 20070104635Abstract: Sodium hydrogencarbonate crystal particles, which comprise sodium hydrogencarbonate crystal particles having an average particle size of from 50 to 500 ?m based on the mass, and anhydrous sodium carbonate, and sodium carbonate monohydrate and/or Wegscheider's salt, present on the surface of the sodium hydrogencarbonate crystal particles in such amounts that the total content of anhydrous sodium carbonate, sodium carbonate monohydrate, Wegscheider's salt and sodium sesquicarbonate in the sodium hydrogencarbonate crystal particles is from 0.04 to 1 mass % as calculated as anhydrous sodium carbonate, anhydrous sodium carbonate accounts for at least 40 mass % of the total content, and sodium carbonate monohydrate and/or Wegscheider's salt accounts for from 5 to 60 mass % of the total content. Sodium hydrogencarbonate crystal particles having a low caking property, which are useful in the field of food products, pharmaceuticals, bath additives, etc.Type: ApplicationFiled: January 3, 2007Publication date: May 10, 2007Applicant: ASAHI GLASS COMPANY LIMITEDInventors: Hachirou Hirano, Takako Hirano, Shintaro Kikuchi, Fumiaki Nakashima, Hisakazu Arima, Shigeru Sakurai -
Publication number: 20070105226Abstract: A method for evaluating the caking property of sodium hydrogencarbonate crystal particles, characterized in that sodium hydrogencarbonate crystal particles are hermetically sealed in a packaging material having a water vapor transmission rate of at least 3 g/(m2·24h) (at 40° C. with a relative humidity difference of 90%) as stipulated in JIS K7129 and left at rest at a temperature of from 17 to 35° C. at a carbon dioxide gas concentration of from 0.03 to 0.05 vol % at a relative humidity of from 40 to 95% for from 2 weeks to 3 months, and the proportion of agglomerated sodium hydrogencarbonate crystal particles is determined to evaluate the caking tendency. A novel test method for evaluating the caking property of sodium hydrogencarbonate crystal particles, capable of providing results of the caking property test with high reproducibility, quantitatively with high versatility, can be provided.Type: ApplicationFiled: January 3, 2007Publication date: May 10, 2007Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Hachirou HIRANO, Takako Hirano, Shintaro Kikuchi, Fumiaki Nakashima, Hisakazu Arima, Shigeru Sakurai