Patents by Inventor Hajime Yoshino
Hajime Yoshino 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: 8831235Abstract: A speaker determination device determines a polarity of a speaker connected to output terminals. Test sound is outputted to an acoustic space via the connected speaker and is collected by a microphone. A reference signal is generated based on the test signal. A polarity determining unit compares predetermined frequency range components of the microphone signal obtained by the microphone and the reference signal, and determines the polarity of the speaker, i.e., whether the speaker is connected in positive phase or in negative phase.Type: GrantFiled: February 26, 2009Date of Patent: September 9, 2014Assignee: Pioneer CorporationInventor: Hajime Yoshino
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Patent number: 8673044Abstract: The invention is to provide a process for producing an aluminum titanate-based ceramics body, wherein, as a regenerated starting material, a fired body recovered in a production process for an aluminum titanate-based ceramics body is used and the aluminum titanate-based ceramics body excellent in a mechanical strength and in a thermal characteristics such as low thermal expansion and heat resistance can be obtained. The invention provides a process for producing an aluminum titanate-based ceramics body using a fired ceramics body recovered in a production process for an aluminum titanate-based ceramics body, comprising the following steps: a step of preparing a pulverized product having a median particle diameter of 100 ?m or less from the fired ceramics body; a step of preparing a regenerated clay containing the pulverized product and water; a step of shaping the regenerated clay to form a shaped body; and a step of firing the shaped body.Type: GrantFiled: March 29, 2010Date of Patent: March 18, 2014Assignee: Sumitomo Chemical Company, LimitedInventors: Akiyoshi Nemoto, Hajime Yoshino, Masayuki Narumi
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Publication number: 20140050812Abstract: The extrusion-molding device of the invention is for producing a green honeycomb molded body with a cell structure, and the device includes a housing, a screw, a die with slits, a resistance tube and a fragmenting board having through-passages through which a raw material composition passes from the upstream end side to the downstream end side. The through-passages of the fragmenting board have upstream channels composed of a plurality of flow passages extending downstream from the upstream end side, and downstream channels extending up to the downstream end side and having flow passage cross-sectional shapes different from those of the upstream channels.Type: ApplicationFiled: April 27, 2012Publication date: February 20, 2014Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Teruo Komori, Hajime Yoshino
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Publication number: 20130200542Abstract: An extrusion-molding device of the present invention includes: a housing having a channel that transfers a pasty raw material composition; a screw provided upstream of the channel that kneads the raw material composition and transfers the raw material downstream; a die provided downstream of the channel that extrudes a molded article made up of the raw material composition; a resistive tube that connects the channel and the die; a flow rate adjustment plate provided between the screw and the die that is detachable with respect to the housing and that has a plurality of through holes penetrating in a thickness direction; and an upstream blocking member that is detachable with respect to an upstream face of the flow rate adjustable plate and that simultaneously blocks upstream openings of some through holes of the plurality of through holes in a state of being attached to the flow rate adjustable plate.Type: ApplicationFiled: September 16, 2011Publication date: August 8, 2013Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventor: Hajime Yoshino
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Publication number: 20130099412Abstract: The extrusion-molding device of the invention includes a flow passage for transporting a paste raw material composition; a screw provided at an upstream side of the flow passage to knead the raw material composition and transport it to a downstream side; a die provided at a downstream side of the flow passage to extrude a molded body composed of the raw material composition therefrom; a resistive tube for connecting the flow passage and the die; and a current plate provided between the screw and the die. The current plate comprises a plurality of through-holes that penetrate from a upstream end side to a downstream end side, and an opening of the through-hole on the upstream end side has a larger open area than an opening on the downstream end side.Type: ApplicationFiled: June 16, 2011Publication date: April 25, 2013Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Teruo Komori, Hajime Yoshino
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Publication number: 20130043624Abstract: A green molded body comprises an organic binder and an inorganic compound source powder containing an aluminum source powder and a titanium source powder, wherein the organic binder is such that the viscosity at 20° C. of a 2 wt % aqueous solution of the organic binder is 5000 mPa·s or higher. A method for producing an aluminum titanate fired body includes the steps of molding a raw material mixture comprising an organic binder and an inorganic compound source powder containing an aluminum source powder and a titanium source powder to obtain a green molded body; heating the green molded body obtained at 150° C. to 900° C. to remove the organic binder; and firing the green molded body from which the organic binder has been removed, at 1300° C. or higher, wherein the organic binder is such that the viscosity at 20° C. of a 2 wt % aqueous solution of the organic binder is 5000 mPa·s or higher.Type: ApplicationFiled: March 7, 2011Publication date: February 21, 2013Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Masahiro Kan, Kousuke Uoe, Hajime Yoshino
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Publication number: 20120317942Abstract: The present invention aims to provide a honeycomb structure capable of preventing a plugging failure and forming cracks by heat shock which are caused by a cell having a small cross-section.Type: ApplicationFiled: January 18, 2011Publication date: December 20, 2012Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Teruo Komori, Hajime Yoshino
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Patent number: 8208648Abstract: The sound field reproducing apparatus includes: a signal obtaining unit which obtains input audio signals of plural channels; an effect adding unit which gives an effect on an output to a sound field; and an effect amount control unit which controls an amount of the effect based on a characteristic of the input audio signal. The sound field reproducing apparatus receives input audio signals of plural channels from a medium such as a DVD, and gives a sound effect to them to output. The amount of the effect given to the input audio signal is controlled based on the characteristic of the input audio signal, especially the cross correlation of the reverberation component between the channels.Type: GrantFiled: March 9, 2007Date of Patent: June 26, 2012Assignee: Pioneer CorporationInventors: Hajime Yoshino, Akira Hattori
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Publication number: 20120096821Abstract: The invention is to provide a process for producing an aluminum titanate-based ceramics body, wherein a regenerated unfired starting material recovered in a production process for an aluminum titanate-based ceramics body is used and a regenerated clay is easy to prepare and an aluminum titanate-based ceramics body excellent in a mechanical strength and in a thermal characteristics such as low thermal expansion and heat resistance can be obtained. The invention is a process for producing an aluminum titanate-based ceramics body using an unfired regenerated starting material recovered in a production process for an aluminum titanate-based ceramics body, comprising the following steps: a step of preparing a pulverized material having a diameter of 1 mm or less from the unfired regenerated starting material; a step of preparing a regenerated clay containing the pulverized material and water; a step of shaping the regenerated clay to form a shaped body; and a step of firing the shaped body.Type: ApplicationFiled: March 29, 2010Publication date: April 26, 2012Applicant: Sumitomo Chemical Company, Ltd.Inventors: Akiyoshi Nemoto, Hajime Yoshino, Masayuki Narumi
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Publication number: 20120073255Abstract: The invention is to provide a process for producing an aluminum titanate-based ceramics body, wherein, as a regenerated starting material, a fired body recovered in a production process for an aluminum titanate-based ceramics body is used and the aluminum titanate-based ceramics body excellent in a mechanical strength and in a thermal characteristics such as low thermal expansion and heat resistance can be obtained. The invention provides a process for producing an aluminum titanate-based ceramics body using a fired ceramics body recovered in a production process for an aluminum titanate-based ceramics body, comprising the following steps: a step of preparing a pulverized product having a median particle diameter of 100 ?m or less from the fired ceramics body; a step of preparing a regenerated clay containing the pulverized product and water; a step of shaping the regenerated clay to form a shaped body; and a step of firing the shaped body.Type: ApplicationFiled: March 29, 2010Publication date: March 29, 2012Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Akiyoshi Nemoto, Hajime Yoshino, Masayuki Narumi
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Publication number: 20120034446Abstract: The invention is to provide a process for producing an aluminum titanate-based ceramics capable of realizing low thermal expansion and high mechanical strength and having little dimensional change in firing, at a low firing temperature of lower than 1500° C. The invention is a process for producing an aluminum titanate-based ceramics fired body comprising a step of shaping a ceramic plastic rammed earth containing a precursor mixture and an organic-based binder into a predetermined shape, wherein the starting material mixture containing a titanium source powder, an aluminum source powder and a silicon source powder, and a step of maintaining the shaped ceramics plastic rammed earth within a temperature range of from 900 to 1350° C. at a temperature change per hour of from ?50 to +50° C./hr for 3 hours or more, followed by heating up to a temperature of 1400° C. or higher and firing at the temperature.Type: ApplicationFiled: February 24, 2010Publication date: February 9, 2012Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Tetsuro Tohma, Kousuke Uoe, Hajime Yoshino
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Publication number: 20120028784Abstract: The invention is to provide a process which can produce a fired body comprising aluminum titanate-based ceramics being excellent in thermal decomposition resistance and having high mechanical strength. The invention is a process for producing an aluminum titanate-based fired body, comprising a step of firing a shaped body of a starting material mixture which contains an aluminum source powder and a titanium source powder, and the aluminum source powder satisfies the following formula (1). In the formula, D90 is a particle diameter corresponding to a cumulative percentage of 90% on a volume basis and D10 is a particle diameter corresponding to a cumulative percentage of 10% on a volume basis, and these are determined from a particle size distribution of the aluminum source powder measured by a laser diffractometry.Type: ApplicationFiled: December 25, 2009Publication date: February 2, 2012Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Kousuke Uoe, Keiichiro Suzuki, Masahiro Kan, Hajime Yoshino
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Publication number: 20120003464Abstract: The process for producing a porous ceramics shaped body comprises a step of firing a shaped body of a starting material mixture which contains an aluminum source powder and a titanium source powder, and the aluminum source powder satisfies the below formula (1a): (Da90/Da10)1/2<2??(1a) wherein Da90 is a particle diameter corresponding to a cumulative percentage of 90% on a volume basis and Da10 is a particle diameter corresponding to a cumulative percentage of 10% on a volume basis, and these are determined from a particle size distribution of the aluminum source powder measured by a laser diffractometry.Type: ApplicationFiled: January 7, 2010Publication date: January 5, 2012Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Kousuke Uoe, Keiichiro Suzuki, Hajime Yoshino
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Publication number: 20110299691Abstract: A speaker determination device determines a polarity of a speaker connected to output terminals. Test sound is outputted to an acoustic space via the connected speaker and is collected by a microphone. A reference signal is generated based on the test signal. A polarity determining unit compares predetermined frequency range components of the microphone signal obtained by the microphone and the reference signal, and determines the polarity of the speaker, i.e., whether the speaker is connected in positive phase or in negative phase.Type: ApplicationFiled: February 26, 2009Publication date: December 8, 2011Applicant: PIONEER CORPORATIONInventor: Hajime Yoshino
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Publication number: 20110287921Abstract: The invention is to provide a process for producing a fired body comprising an aluminum titanate-based ceramic of which the shrinkage ratio in firing (firing shrinkage ratio) can be suppressed low and which is excellent in thermal decomposition resistance. The invention is a process for producing an aluminum titanate-based fired body comprising a step of firing a shaped body of a starting material mixture containing an aluminum source powder, a titanium source powder and a magnesium source powder, wherein the titanium source powder has a specific particle diameter distribution characteristic.Type: ApplicationFiled: December 11, 2009Publication date: November 24, 2011Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Kousuke Uoe, Keiichiro Suzuki, Masahiro Kan, Hajime Yoshino
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Patent number: D675718Type: GrantFiled: September 21, 2011Date of Patent: February 5, 2013Assignee: Sumitomo Chemical Company, LimitedInventors: Teruo Komori, Hajime Yoshino, Kousuke Uoe
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Patent number: D676120Type: GrantFiled: September 21, 2011Date of Patent: February 12, 2013Assignee: Sumitomo Chemical Company, LimitedInventors: Teruo Komori, Hajime Yoshino, Kousuke Uoe
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Patent number: D676121Type: GrantFiled: September 21, 2011Date of Patent: February 12, 2013Assignee: Sumitomo Chemical Company LimitedInventors: Teruo Komori, Hajime Yoshino, Kousuke Uoe
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Patent number: D700693Type: GrantFiled: May 24, 2011Date of Patent: March 4, 2014Assignee: Sumitomo Chemical Company, LimitedInventors: Teruo Komori, Hajime Yoshino
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Patent number: D701297Type: GrantFiled: May 24, 2011Date of Patent: March 18, 2014Assignee: Sumitomo Chemical Company, LimitedInventors: Teruo Komori, Hajime Yoshino