Patents by Inventor Iwao Kojima
Iwao Kojima 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: 10214568Abstract: Provided is a preparation method for phycocyanin, including: adding chitosan to a suspension of cyanobacteria containing phycocyanin; and filtering the suspension.Type: GrantFiled: December 25, 2012Date of Patent: February 26, 2019Assignees: Ezaki Glico Co., Ltd., Glico Nutrition Co., Ltd.Inventors: Iwao Kojima, Koji Odan, Masahiro Nishikawa
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Patent number: 9562247Abstract: An object of the present invention is to provide a method for industrially producing a branched glucan having a cyclic structure. The method for producing a branched glucan having a cyclic structure comprises the steps of: (1) preparing a mixed liquid which contains a branching enzyme in which starch granules are suspended at a concentration of 5% by weight or more and 50% by weight or less, and allowing the branching enzyme to act on starch in the starch granules, wherein a temperature of the mixed liquid at the time of preparation is 0° C. or higher and not higher than the gelatinization starting temperature of the starch granule; and (2) elevating the temperature of the mixed liquid to 85° C. or higher and 129° C. or lower, wherein in the method, none of ?-amylase, ?-amylase, amyloglucosidase and ?transglucosidase is added to the mixed liquid.Type: GrantFiled: December 2, 2011Date of Patent: February 7, 2017Assignee: Ezaki Glico Co., Ltd.Inventors: Takeshi Takaha, Kouji Odan, Michiyo Yanase, Iwao Kojima, Tsunehisa Akiyama
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Publication number: 20140371433Abstract: Provided is a preparation method for phycocyanin, including: adding chitosan to a suspension of cyanobacteria containing phycocyanin; and filtering the suspension.Type: ApplicationFiled: December 25, 2012Publication date: December 18, 2014Applicants: EZAKI GLICO CO., LTD., GLICO NUTRITION CO., LTD.Inventors: Iwao Kojima, Koji Odan, Masahiro Nishikawa
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Publication number: 20130323799Abstract: An object of the present invention is to provide a method for industrially producing a branched glucan having a cyclic structure. The method for producing a branched glucan having a cyclic structure comprises the steps of: (1) preparing a mixed liquid which contains a branching enzyme in which starch granules are suspended at a concentration of 5% by weight or more and 50% by weight or less, and allowing the branching enzyme to act on starch in the starch granules, wherein a temperature of the mixed liquid at the time of preparation is 0° C. or higher and not higher than the gelatinization starting temperature of the starch granule; and (2) elevating the temperature of the mixed liquid to 85° C. or higher and 129° C. or lower, wherein in the method, none of ?-amylase, ?-amylase, amyloglucosidase and a transglucosidase is added to the mixed liquid.Type: ApplicationFiled: December 2, 2011Publication date: December 5, 2013Applicant: EZAKI GLICO CO., LTD.Inventors: Takeshi Takaha, Kouji Odan, Michiyo Yanase, Iwao Kojima, Tsunehisa Akiyama
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Publication number: 20120094727Abstract: Provided is a power amplification circuit capable of quickly and highly accurately preventing an output power and a current of a power amplifier from fluctuating when an antenna load changes. A power amplifier 11 amplifies a radio frequency signal and obtains an output signal. A regulator 12 amplifies an input voltage by a predetermined gain and supplies an output voltage to the power amplifier 11. A current monitor 13 monitors an input current to the regulator 12 and obtains a monitor current. A first multiplier 14 multiplies the monitor current by the output voltage of the regulator 12 and obtains a monitor power. A memory 16 prestores a predetermined reference current. A second multiplier 15 multiplies the input voltage by the reference current and obtains a reference power. A gain control section 121 in the regulator 12 controls a predetermined gain based on the monitor power and the reference power.Type: ApplicationFiled: October 8, 2010Publication date: April 19, 2012Inventors: Shigeru Morimoto, Kenichi Mori, Iwao Kojima, Kazuaki Takahashi, Mikihiro Shimada
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Patent number: 7432765Abstract: A variable gain amplifier includes a voltage-to-current converter for converting the input voltage to a current, a current amplifier for amplifying the current converted by the voltage-to-current converter, a current-to-voltage converter for converting the current amplified by the current amplifier into a voltage, and a controller for controlling an amplification factor of the current amplifier.Type: GrantFiled: March 29, 2006Date of Patent: October 7, 2008Assignee: Matsushita Electric Industrial Co., Ltd.Inventor: Iwao Kojima
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Patent number: 7382198Abstract: In differential amplifier circuitry formed on a semiconductor substrate, first and second transistors constitute a differential pair of the differential amplifier circuitry. First and second pads are connected with emitters of the first and second transistors, respectively. The first and second pads are connected with first and second external ground terminals via first and second rewiring layers to be grounded, respectively. The first and second rewiring layers are preferably connected with each other. Further, bases of the first and second transistors are connected with first and second bias circuits via first and second resistors, respectively.Type: GrantFiled: April 7, 2006Date of Patent: June 3, 2008Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Masanori Nakamura, Iwao Kojima
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Patent number: 7242246Abstract: In an amplitude detecting circuit, a phase shifter, into which an alternating current signal that is outputted from an AGC circuit is inputted, outputs first and second alternating current signals between which there is a phase difference. In addition, full wave rectifying is carried out in a first full wave rectifier on the first alternating current signal that is outputted from the phase shifter and in the same manner full wave rectifying is carried out in a second full wave rectifier on the second alternating current signal. Furthermore, in an averaging circuit, output signals of the first and second full wave rectifiers are averaged so as to generate an amplitude detection signal.Type: GrantFiled: April 12, 2005Date of Patent: July 10, 2007Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yoshitsugu Takasawa, Iwao Kojima
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Publication number: 20070139119Abstract: A variable attenuator which can sequentially control attenuation effectively and has a small variation in manufacturing, is provided. The variable attenuator has a first signal input terminal; a first signal output terminal; a first control terminal receiving a control voltage; an analog/digital converter converting the control voltage to M (M is a positive integer of 2 or more) control signals; and N (N is a positive integer satisfying N?M) variable impedance elements which are connected in parallel and/or in series between the first signal input terminal and the first signal output terminal, and each impedance of which is varied by either one of the control signals.Type: ApplicationFiled: December 7, 2004Publication date: June 21, 2007Inventor: Iwao Kojima
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Publication number: 20070132512Abstract: A variable gain amplifier is provided that scarcely suffers disturbance or interference such as carrier leak from other circuit blocks even when a plurality of circuits are constructed on the same semiconductor substrate, and that has low output impedance fluctuation. For the purpose of this, in a variable gain amplifier, the ground terminal of a signal amplifying transistor is connected to a dedicated grounding pad to which the other circuit blocks are not connected, so that disturbance or interference such as carrier leak from other circuit blocks is reduced. Further, the ground terminal of an output impedance compensation circuit is also connected to the same grounding pad described above, so that further disturbance or interference is avoided. As a result, the circuit scarcely suffers disturbance or interference such as carrier leak from other circuit blocks, so that output impedance fluctuation is reduced.Type: ApplicationFiled: November 28, 2006Publication date: June 14, 2007Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.Inventors: Takahito Miyazaki, Iwao Kojima
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Publication number: 20070120244Abstract: A semiconductor device (1) comprises a semiconductor substrate (2) on which an integrated circuit (3, 4) is formed, a first ground terminal (7) and a second ground terminal (8) for electrically connecting the integrated circuit (3, 4) to an external ground electrode, and an electrostatic breakdown protection element (5) for electrically connecting the first ground terminal (7) with the second ground terminal (8). The first ground terminal (7) is electrically connected with the semiconductor substrate (2), while the second ground terminal (8) is not electrically connected with the semiconductor substrate (2). A semiconductor device comprises a semiconductor substrate on which an integrated circuit is formed, a first ground terminal and a second ground terminal for electrically connecting the integrated circuit to an external ground electrode, and an electrostatic breakdown protection element for electrically connecting the first ground terminal with the second ground terminal.Type: ApplicationFiled: November 29, 2004Publication date: May 31, 2007Inventors: Iwao Kojima, Toshihiro Shogaki, Osamu Ishikawa
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Publication number: 20060244540Abstract: In a differential amplifier circuitry formed on a semiconductor substrate, first and second transistors constitute a differential pair of the differential amplifier circuitry. First and second pads are connected with emitters of the first and second transistors, respectively. The first and second pads are connected with first and second external ground terminals via first and second rewiring layers to be grounded, respectively. The first and second rewiring layers are preferably connected with each other. Further, bases of the first and second transistors are connected with first and second bias circuits via first and second resistors, respectively.Type: ApplicationFiled: April 7, 2006Publication date: November 2, 2006Inventors: Masanori Nakamura, Iwao Kojima
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Publication number: 20060220743Abstract: A variable gain amplifier includes a voltage-to-current converter for converting the input voltage to a current, a current amplifier for amplifying the current converted by the voltage-to-current converter, a current-to-voltage converter for converting the current amplified by the current amplifier into a voltage, and a controller for controlling an amplification factor of the current amplifier.Type: ApplicationFiled: March 29, 2006Publication date: October 5, 2006Inventor: Iwao Kojima
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Publication number: 20050231285Abstract: In an amplitude detecting circuit, a phase shifter, into which an alternating current signal that is outputted from an AGC circuit is inputted, outputs first and second alternating current signals between which there is a phase difference. In addition, full wave rectifying is carried out in a first full wave rectifier on the first alternating current signal that is outputted from the phase shifter and in the same manner full wave rectifying is carried out in a second full wave rectifier on the second alternating current signal. Furthermore, in an averaging circuit, output signals of the first and second full wave rectifiers are averaged so as to generate an amplitude detection signal.Type: ApplicationFiled: April 12, 2005Publication date: October 20, 2005Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.Inventors: Yoshitsugu Takasawa, Iwao Kojima
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Patent number: 6547741Abstract: A sphygmomanometer includes a body 10 and a cuff 20 which is integrally attached to the body 10 and wrapped around the wrist. The body 10 is attached to the cuff 20 such that the body is located on the thumb side of the arm L when the sphygmomanometer is fitted on the wrist. Consequently, a precise blood pressure measurement and precise blood pressure fluctuation can be obtained without restriction on the location where the blood pressure measurement is conducted.Type: GrantFiled: October 16, 2001Date of Patent: April 15, 2003Assignee: Omron CorporationInventors: Kentaro Mori, Takahide Tanaka, Akira Nakagawa, Iwao Kojima
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Publication number: 20020147404Abstract: To provide an electronic blood pressure monitor with increased measurement accuracy at the time of measurement of blood pressure at the wrist. A cuff has a pressure-increase structure for making a pressure to an ulna side of the wrist higher than a pressure to a radius side. The pressure-increase structure is achieved by providing an extrusion having a width narrower than a width of the cuff on the side facing the ulna portion. The extrusion is projected from the surface of the cuff. When the cuff is mounted on the wrist, the extrusion presses the ulnar portion with a pressure higher than an internal pressure of the cuff.Type: ApplicationFiled: March 22, 2002Publication date: October 10, 2002Inventors: Hiroyuki Kato, Takahide Tanaka, Yoshihiko Sano, Shojiro Oku, Iwao Kojima, Yukiya Sawanoi
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Patent number: 6379310Abstract: A sphygmomanometer includes a body 10 and a cuff 20 which is integrally attached to the body 10 and wrapped around the wrist. The body 10 is attached to the cuff 20 such that the body is located on the thumb side of the arm L when the sphygmomanometer is fitted on the wrist. Consequently, a precise blood pressure measurement and precise blood pressure fluctuation can be obtained without restriction on the location where the blood pressure measurement is conducted.Type: GrantFiled: July 10, 2000Date of Patent: April 30, 2002Assignee: Omron CorporationInventors: Kentaro Mori, Takahide Tanaka, Akira Nakagawa, Iwao Kojima
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Publication number: 20020019592Abstract: A sphygmomanometer includes a body 10 and a cuff 20 which is integrally attached to the body 10 and wrapped around the wrist. The body 10 is attached to the cuff 20 such that the body is located on the thumb side of the arm L when the sphygmomanometer is fitted on the wrist. Consequently, a precise blood pressure measurement and precise blood pressure fluctuation can be obtained without restriction on the location where the blood pressure measurement is conducted.Type: ApplicationFiled: October 16, 2001Publication date: February 14, 2002Inventors: Kentaro Mori, Takahide Tanaka, Akira Nakagawa, Iwao Kojima
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Patent number: 6075834Abstract: In a frequency divider in which a dividing number defined by the ratio of an input frequency to an output frequency is changed between two states of M and M+1 (M is an integer), the time point when the dividing number becomes M+1 is randomized on the time axis with the average dividing number being maintained at M+1/N (N is an integer).Type: GrantFiled: February 19, 1998Date of Patent: June 13, 2000Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Iwao Kojima, Yukio Hiraoka, Takayuki Shimazu
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Patent number: 5281527Abstract: This invention provides a pullulanase having a high degree of pH stability under acidic conditions, which is produced by cultivation of a microorganism belonging to the genus Bacillus, particularly Bacillus circulans SV-98 (FERM P-12161). This enzyme is useful, for example, in the manufacture of glucose and maltose from starch.Type: GrantFiled: June 23, 1992Date of Patent: January 25, 1994Assignee: Nagase Biochemicals, Ltd.Inventors: Yoshihisa Tachibana, Iwao Kojima, Ritsuko Yoshida, Tomoko Adachi, Yoshiaki Takesada, Saburo Yamauchi