Patents by Inventor Akira Kitamura
Akira Kitamura 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: 20170258077Abstract: Provided is a volatile composition having a small difference in volatilization amounts of a volatile substance within a wide temperature range from the normal temperature and enabling the control of the volatilization amount even at a high temperature by suppressing the volatilization amount of the volatile substance and by increasing the gel strength of the volatile composition. Specifically provided is a volatile composition having an alkyl cellulose having such a viscosity that a viscosity at 20° C. of a 1% by weight aqueous solution of the alkyl cellulose is 4,000 to 11,000 mPa·s as determined by a Brookfield viscometer and having such a storage elastic modulus that a storage elastic modulus G?(65° C.) at 65° C. of a 1.5% by weight aqueous solution of the alkyl cellulose is 3,000 to 4,500 Pa; a volatile substance; and a solvent.Type: ApplicationFiled: March 6, 2017Publication date: September 14, 2017Inventors: Atsushi Yamamoto, Akira Kitamura, Shingo Niinobe
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Publication number: 20170088677Abstract: A method of producing polymer particles includes, in a system in which a polymer A and a polymer B are dissolved in and mixed with an organic solvent to undergo phase separation into two phases which are a solution phase containing the polymer A as a major component and a solution phase containing the polymer B as a major component, continuously adding an emulsion including the polymer A, the polymer B and the organic solvent, and a poor solvent for the polymer A to a vessel continuously to allow the polymer A to precipitate; and separating polymer A particles from the vessel continuously.Type: ApplicationFiled: June 1, 2015Publication date: March 30, 2017Inventors: Yoshinori Kondo, Yuji Echigo, Akira Kitamura, Hiroshi Takezaki
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Patent number: 9546222Abstract: Provided is a method for producing low-substituted hydroxypropylcellulose in which depolymerization capable of achieving a target viscosity in a short time is carried out safely after an etherification reaction step. More specifically, provided is a method for producing low-substituted hydroxypropylcellulose having a degree of hydroxypropoxy substitution of from 9.5 to 16.0% by weight, comprising at least a step of reacting alkali cellulose with an etherifying agent and a step of carrying out depolymerization after the reaction.Type: GrantFiled: September 13, 2011Date of Patent: January 17, 2017Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Akira Kitamura, Takahiro Suzuki, Mitsuo Narita
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Publication number: 20160168271Abstract: Provided is a method for producing an alkyl cellulose having a high viscosity and not having an excessively high gel strength. More specifically, there is provided a method for producing an alkyl cellulose comprising the steps of: mixing a cellulose pulp with a first alkali metal hydroxide solution with stirring to obtain alkali cellulose; reacting the alkali cellulose with an alkylating agent to obtain a first reaction mixture; blending a second alkali metal hydroxide solution with the first reaction mixture with stirring, without further blending of the alkylating agent, to obtain a second reaction mixture; and purifying the second reaction mixture to obtain an alkyl cellulose. There is also provided an alkyl cellulose being produced by the above method and having a degree of substitution of alkyl group of 27 to 33% by weight.Type: ApplicationFiled: December 10, 2015Publication date: June 16, 2016Inventors: Akira Kitamura, Atsushi Yamamoto, Mitsuo Narita, Heiko Nebel, Andreas Schultz
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Publication number: 20150090367Abstract: A flux for soldering includes a base resin, a solvent, and an activating agent. The base resin contains a rosin. An amount of the rosin to be incorporated is from 0% by weight to 30% by weight with respect to a total amount of the base resin. The activating agent includes a compound having a plurality of carboxyl groups on a cyclohexyl structure represented by a general formula (1). X is (a) one or more carboxyl groups, or (b) one or more carboxyl groups and at least one selected from a hydrogen atom, chloro group, bromo group, alkyl group, and cyclohexyl group. A position of the X is not limited. A number of the X is one or more. The X may have either one of the (a) and (b) alone, or a plurality of the (a) and (b) in combination.Type: ApplicationFiled: September 25, 2014Publication date: April 2, 2015Applicant: TAMURA CORPORATIONInventors: Masahiro TSUCHIYA, Akira KITAMURA, Momoko SEINO, Masaya ARAI
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Publication number: 20150090366Abstract: A soldering flux includes a base resin, an activator, and a solvent. The activator contains an acrylic resin having an acid value of not more than 50 mg KOH/g and represented by a general formula (1). A monomer weight ratio of a, b, and c is b/(a+b+c)?0.6, at least one of a and c may be 0, R1 is an alkyl group having a carbon number of 8 to 24, R2 is a substituent other than the R1 and may be one of substituents including a hydrogen atom, a methyl group, an alkyl group, an aryl group, and a hydroxyl group or a combination of a plurality of substituents, and R3, R4, and R5 are hydrogen atoms or methyl groups. The solvent contains a compound having a carboxyl group in a cyclohexyl skeleton and represented by a general formula (2).Type: ApplicationFiled: September 25, 2014Publication date: April 2, 2015Applicant: TAMURA CORPORATIONInventors: Masahiro TSUCHIYA, Akira KITAMURA, Momoko SEINO, Masaya ARAI
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Publication number: 20150040798Abstract: Provided are a method for producing a water-soluble cellulose ether having a low degree of polymerization and enhanced whiteness, and the like. The method includes the steps of: bringing a pulp powder having a multiplication product of less than 0.004 mm2 which is obtained by multiplying a number-average fiber length by a number-average fiber width, each measured with a Kajaani fiber length analyzer, into contact with an alkali metal hydroxide to obtain an alkali cellulose; reacting the alkali cellulose with an etherifying agent to obtain a crude water-soluble cellulose ether having a high degree of polymerization; purifying the crude water-soluble cellulose ether; drying the purified water-soluble cellulose ether; grinding the dried water-soluble cellulose ether into a water-soluble cellulose ether powder; and depolymerizing the water-soluble cellulose ether powder to obtain the water-soluble cellulose ether having a low degree of polymerization.Type: ApplicationFiled: July 31, 2014Publication date: February 12, 2015Inventors: Akira Kitamura, Mitsuo Narita, Takuya Yokosawa, Yuichi Nishiyama
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Publication number: 20140142293Abstract: Provided is a method for producing low-substituted hydroxypropyl cellulose with less yellowing. More specifically, the method for producing purified low-substituted hydroxypropyl cellulose includes the steps of: reacting alkali cellulose and an etherifying agent to obtain a reaction mixture; dispersing the reaction mixture in water containing a portion of acetic acid necessary for neutralizing the total amount of the reaction mixture to neutralize a portion of the reaction mixture, and then completely neutralizing with the remaining acetic acid to cause precipitation, to obtain a slurry containing crude low-substituted hydroxypropyl cellulose; disintegrating a solid component in the slurry through a cutter pump, the solid component containing the crude low-substituted hydroxypropyl cellulose, and discharging the slurry containing the disintegrated solid component; washing the discharged slurry with water to obtain a cake of purified low-substituted hydroxypropyl cellulose; and drying the cake.Type: ApplicationFiled: November 14, 2013Publication date: May 22, 2014Applicant: Shin-Etsu Chemical Co., Ltd.Inventors: Akira Kitamura, Atsuhiko Yonemochi, Mitsuo Narita
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Publication number: 20120065390Abstract: Provided is a method for producing low-substituted hydroxypropylcellulose in which depolymerization capable of achieving a target viscosity in a short time is carried out safely after an etherification reaction step. More specifically, provided is a method for producing low-substituted hydroxypropylcellulose having a degree of hydroxypropoxy substitution of from 9.5 to 16.0% by weight, comprising at least a step of reacting alkali cellulose with an etherifying agent and a step of carrying out depolymerization after the reaction.Type: ApplicationFiled: September 13, 2011Publication date: March 15, 2012Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Akira Kitamura, Takahiro Suzuki, Mitsuo Narita
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Publication number: 20110118636Abstract: There are equipped: a massage unit (5) for applying a massage operation to the user; a brain wave acquisition section (18) for acquiring the brain wave of the user being massaged by the massage unit (5); an operation control section (17) for controlling the massage operation by the massage unit (5) based on the brain wave acquired by the brain wave acquisition section (18); and an electromagnetic noise elimination section (19) for eliminating an electromagnetic noise. In accordance with the massage operation during the acquisition of the brain wave, the electromagnetic noise elimination section (19) eliminates the electromagnetic noise caused by the massage unit (5) performing the massage operation from the brain wave acquired by the brain wave acquisition section (18).Type: ApplicationFiled: February 3, 2009Publication date: May 19, 2011Applicant: Tottori UniversityInventors: Akira Kitamura, Daisuke Kushida, Hideshi Kondo, Masashi Fujikawa
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Patent number: 7590990Abstract: A general-purpose OS (operating system) is used as a host OS and a real-time OS operating as one or more tasks on the host OS is used as a guest OS. An interrupt handler and a task on the host OS and an interrupt handler and a task on the guest OS issue APIs (application program interfaces) for requesting task state change to a start, stop or like state. An API processor is provided in each OS and outputs an instruction for task state change. An instruction storage for storing instructions output from an API processor of the guest OS in order and outputting the instructions is provided. When interrupt handlers are not in execution, an instruction synchronization timing controller preferentially selects from instructions output from the API processor of the host OS and from the instruction storage the latter and outputs the selected instruction to a scheduler.Type: GrantFiled: October 17, 2005Date of Patent: September 15, 2009Assignee: Panasonic CorporationInventors: Noboru Asai, Akira Kitamura
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Patent number: 7364430Abstract: A dental implant system and method are provided. The dental implant system typically includes a boring device for boring a hole in an alveolar bone and leaving a bridge portion separating the hole from the maxillary sinus cavity. The system may also include a scoring device for scoring the bridge portion, and a lifting device for breaking the bridge portion along the score, and lifting the freed bridge portion a first predetermined distance. The system may further include a membrane separation elevator for separating the sinus membrane from the sinus cavity wall. The system may also include a second lifting device configured to contact the freed bridge portion to further raise the freed bridge portion and sinus membrane together to a second predetermined penetration distance into the sinus cavity.Type: GrantFiled: May 18, 2006Date of Patent: April 29, 2008Inventors: Akira Kitamura, Ryoji Kitamura
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Publication number: 20080028426Abstract: Video/audio data is stored in an HDD (115) and information concerning to the video/audio data is also generated and stored with the video/audio data. A comparison unit (112) compares the video/audio data with feature data stored in a selector unit (111) and detects a position where the feature data is contained. When the feature data is detected, a tag information generation unit (113) generates tag information and stores the tag information after adding thereto the video/audio data.Type: ApplicationFiled: June 20, 2005Publication date: January 31, 2008Inventors: Osamu Goto, Toru Inada, Akira Kitamura
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Publication number: 20070214367Abstract: A first OS 200 is started, and start up of a second OS 300 is completed while a scramble key Ks is acquired and registered (step S201). The first OS 200 stores network settings information and program channel information (control information) in a state-storage buffer 103c (step S106), and the first OS 200 is shut down. The second OS 300 begins switch-to-SMP processing (step S204), and beings SMP processing (step S205). Thereafter, the control information is read from a state-storage buffer area 103a (step S206), and a first CPU 101a and a second CPU 101b share control of units of an AV decoder 101d (step S207).Type: ApplicationFiled: February 15, 2007Publication date: September 13, 2007Inventors: Taiyo Watanabe, Akira Kitamura
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Patent number: 7209993Abstract: An interrupt control apparatus comprising an interrupt vector register for holding address information corresponding to interrupt resources of a first type which are managed by an operating system and interrupt resources of a second type which are not managed by the operating system. Regarding an interrupt generated by an interrupt resource of the first type, the interrupt control apparatus in the present invention launches a common interrupt entry function which is subject to a scheduling process common to the interrupt resources of the first type, based on the address information of the interrupt vector register. At the same time, with regard to an interrupt generated by an interrupt resource of the second type, the interrupt control apparatus in the present invention launches an extended interrupt entry function which is not subject to the aforementioned scheduling process, based on the address information held in the interrupt vector register.Type: GrantFiled: November 24, 2004Date of Patent: April 24, 2007Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Akira Kitamura, Noboru Asai, Koichi Yasutake
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Patent number: 7125253Abstract: A dental implant system and method are provided. The dental implant method may include forming a hole in bone of an alveolar of a maxilla, adjacent a sinus cavity. The hole is typically formed so as to leave a bridge portion separating the hole from a bottom surface of a sinus cavity wall. The method may further include separating the bridge portion from the sinus cavity wall, and lifting the bridge portion and the sinus membrane together at least partially into the sinus cavity.Type: GrantFiled: October 1, 2004Date of Patent: October 24, 2006Inventors: Akira Kitamura, Ryoji Kitamura
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Publication number: 20060204929Abstract: A dental implant system and method are provided. The dental implant system typically includes a boring device for boring a hole in an alveolar bone and leaving a bridge portion separating the hole from the maxillary sinus cavity. The system may also include a scoring device for scoring the bridge portion, and a lifting device for breaking the bridge portion along the score, and lifting the freed bridge portion a first predetermined distance. The system may further include a membrane separation elevator for separating the sinus membrane from the sinus cavity wall. The system may also include a second lifting device configured to contact the freed bridge portion to further raise the freed bridge portion and sinus membrane together to a second predetermined penetration distance into the sinus cavity.Type: ApplicationFiled: May 18, 2006Publication date: September 14, 2006Inventors: Akira Kitamura, Ryoji Kitamura
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Publication number: 20060198602Abstract: To record AV data separately in a plurality of recording media, when a disk end detector detects that the free space in a disk runs out, a stream recording location controller accumulates AV data of a stream buffer in a stream shunt memory. When the disk is replaced with a new one, a disk recordability detector detects whether or not the new disk has become recordable. If recordable, a shunted stream write-back section transfers the AV data held in the stream shunt memory to the new disk.Type: ApplicationFiled: March 1, 2006Publication date: September 7, 2006Inventors: Osamu Goto, Akira Kitamura
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Publication number: 20060112394Abstract: A general-purpose OS (operating system) is used as a host OS and a real-time OS operating as one or more tasks on the host OS is used as a guest OS. An interrupt handler and a task on the host OS and an interrupt handler and a task on the guest OS issue APIs (application program interfaces) for requesting task state change to a start, stop or like state. An API processor is provided in each OS and outputs an instruction for task state change. An instruction storage for storing instructions output from an API processor of the guest OS in order and outputting the instructions is provided. When each of the interrupt handlers is not in execution, an instruction synchronization timing controller preferentially selects from instructions output from the API processor of the host OS and from the instruction storage the latter and outputs the selected instruction to a scheduler.Type: ApplicationFiled: October 17, 2005Publication date: May 25, 2006Inventors: Noboru Asai, Akira Kitamura
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Patent number: 6972347Abstract: A method for converting aromatic hydrocarbons by contacting an aromatic hydrocarbon starting material including benzene and having a non-aromatic compound content of 1% by weight or less, with a catalystto generate useful C7 and C8 aromatic hydrocarbons while reducing the catalyst deactivation.Type: GrantFiled: June 8, 2000Date of Patent: December 6, 2005Assignee: Toray Industries, Inc.Inventors: Akira Kitamura, Ryoji Ichioka, Shinobu Yamakawa