Patents by Inventor Yoshiro Takeda
Yoshiro Takeda 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: 8799636Abstract: An electronic apparatus includes a processor and a memory coupled to the processor. The processor executes a process including calculating a first accumulated time during which the battery device feeds power to the electronic apparatus while being attached to the electronic apparatus in a first attachment state in which a first surface of the battery device faces a reference surface provided in the electronic apparatus, calculating a second accumulated time during which the battery device feeds power to the electronic apparatus while being attached to the electronic apparatus in a second attachment state in which a second surface of the battery device faces the reference surface, the second surface being different from the first surface, and providing an instruction to change an attachment state of the battery device when a difference between the first accumulated time and the second accumulated time exceeds a given time.Type: GrantFiled: June 27, 2012Date of Patent: August 5, 2014Assignee: Fujitsu LimitedInventors: Yoshiro Takeda, Toshihiro Miyamoto
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Publication number: 20130042099Abstract: An electronic apparatus includes a processor and a memory coupled to the processor. The processor executes a process including calculating a first accumulated time during which the battery device feeds power to the electronic apparatus while being attached to the electronic apparatus in a first attachment state in which a first surface of the battery device faces a reference surface provided in the electronic apparatus, calculating a second accumulated time during which the battery device feeds power to the electronic apparatus while being attached to the electronic apparatus in a second attachment state in which a second surface of the battery device faces the reference surface, the second surface being different from the first surface, and providing an instruction to change an attachment state of the battery device when a difference between the first accumulated time and the second accumulated time exceeds a given time.Type: ApplicationFiled: June 27, 2012Publication date: February 14, 2013Applicant: FUJITSU LIMITEDInventors: Yoshiro TAKEDA, Toshihiro MIYAMOTO
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Publication number: 20060240669Abstract: A method of forming a vapor-deposited film includes the steps of: aligning a mask having a plurality of openings with a substrate; forming a film on the substrate through the openings of the mask by the use of a vapor deposition method; and cleaning the mask in a state that the top surface and the bottom surface of the mask used for forming the film are not inverted to maintain the vertical relation of the mask.Type: ApplicationFiled: April 26, 2006Publication date: October 26, 2006Applicant: KYOCERA CorporationInventors: Katsuhiro Kaneko, Yoshiro Takeda, Kazumasa Kobayashi, Eiho Chin, Koji Murayama
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Publication number: 20060027170Abstract: A deposition boat includes a boat on which a deposition material is placed; a cap body having an opening through which a vapor of the deposition material goes and partially overlapping with the boat; and a fixing member that is disposed on the overlapping portion of the cap body with the boat and fixes the cap body and boat at the overlapping portion, the fixing member being formed of a material that is more plastically deformable and higher in the fracture toughness than materials constituting the boat and the cap body.Type: ApplicationFiled: July 29, 2005Publication date: February 9, 2006Inventors: Yoshiro Takeda, Motohiko Asano, Katsuhiro Kaneko
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Patent number: 6608469Abstract: The device for charging a secondary battery, comprises: a measuring circuit for measuring the terminal voltage of the battery; a control circuit for controlling a charging current fed through the battery; and an abnormality determining portion which starts a preliminary charging of the battery (S2), finishes the charging (S4) when the voltage of the battery has reached a first threshold value which is decided based on the normal-state upper limit of the internal resistance and the current of the battery (S3), measures the open-circuit voltage of the battery after finishing the charging, determines that the battery is abnormal when the open-circuit voltage is less than a second threshold value (S5), determines that the battery is abnormal when the open-circuit voltage is larger than a third threshold value for detecting that the battery is abnormal (S5), and indicates that the battery is abnormal (S9).Type: GrantFiled: February 22, 2002Date of Patent: August 19, 2003Assignee: Fujitsu LimitedInventors: Kazuhito Fukuoka, Nobuo Tanaka, Yoshiro Takeda
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Publication number: 20030020434Abstract: The device for charging a secondary battery, comprises: a measuring circuit for measuring the terminal voltage of the battery; a control circuit for controlling a charging current fed through the battery; and an abnormality determining portion which starts a preliminary charging of the battery (S2), finishes the charging (S4) when the voltage of the battery has reached a first threshold value which is decided based on the normal-state upper limit of the internal resistance and the current of the battery (S3), measures the open-circuit voltage of the battery after finishing the charging, determines that the battery is abnormal when the open-circuit voltage is less than a second threshold value (S5), determines that the battery is abnormal when the open-circuit voltage is larger than a third threshold value for detecting that the battery is abnormal (S5), and indicates that the battery is abnormal (S9).Type: ApplicationFiled: February 22, 2002Publication date: January 30, 2003Applicant: Fujitsu LimitedInventors: Kazuhito Fukuoka, Nobuo Tanaka, Yoshiro Takeda
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Patent number: 6262494Abstract: A battery unit includes a plurality of cells connected in parallel with one another, and a switch connected in series with at least one of the cells. The battery unit further includes a control circuit for controlling the on or off state of the switch, and a voltage detection terminal at which a voltage produced by a cell, to which the switch is connected, is developed. The switch can be turned off even with the battery unit connected to a load. A cell in series with which the switch is connected is disconnected from the load. In this state, the state of the cell can be detected through the voltage detection terminal. Even when a resistor is substituted for the switch, the same advantage can be provided. Moreover, the battery unit is freely detachably attached to a main unit of an information processing apparatus. The battery unit then supplies power to the main unit. A power supply control circuit for requesting notification of the state of each cell in the battery unit is incorporated in the main unit.Type: GrantFiled: December 28, 1998Date of Patent: July 17, 2001Assignee: Fujitsu LimitedInventors: Toshiaki Tsukuni, Yoshiro Takeda, Mitsuo Saeki, Hidekiyo Ozawa
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Patent number: 6051955Abstract: A protection circuit is used for a battery unit which has a plurality of cell parts coupled in parallel, and first and second power supplying terminals, where each of the cell parts includes a plurality of battery cells coupled in series, and first and second terminals respectively coupled to the first and second power supplying terminals. The protection circuit includes a plurality of switching elements making an electrical connection to the first terminal of a corresponding one of the cell parts and the first power supplying terminal, and disconnecting the electrical connection in response to an active signal, and a voltage monitoring circuit outputting the active signal to the switching elements when a voltage of at least one battery cell within one cell part falls outside a predetermined range, independently with respect to each of the cell parts.Type: GrantFiled: December 1, 1997Date of Patent: April 18, 2000Assignee: Fujitsu LimitedInventors: Mitsuo Saeki, Hidekiyo Ozawa, Toshiaki Tsukuni, Yoshiro Takeda
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Patent number: 6020718Abstract: A battery capacity predicting method predicts a remaining capacity of a battery unit including a plurality of battery cells connected in series in an apparatus which uses the battery unit. The battery capacity predicting method includes the steps of comparing output voltages of each of the battery cells, and predicting the remaining capacity of the battery unit based on at least one of a minimum voltage and a maximum voltage out of the compared output voltages of the battery cells.Type: GrantFiled: December 11, 1996Date of Patent: February 1, 2000Assignee: Fujitsu LimitedInventors: Hidekiyo Ozawa, Nobuo Tanaka, Masami Itoyama, Yoshiro Takeda
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Patent number: 5627451Abstract: A method for controlling a secondary battery constant current charging method and a control apparatus therefor, which measures battery voltage (V), a change in battery voltage per unit time (.DELTA.V/.DELTA.t), a decrease in battery voltage (-.DELTA.V) from a maximum value, battery temperature (T), and/or a change in battery temperature per unit time (.DELTA.T/.DELTA.t); and stops the battery charging when .DELTA.V/.DELTA.t is greater than or equal to a predetermined value after the passage of a predetermined time t.sub.S, or when .DELTA.V/.DELTA.t and .DELTA.T/.DELTA.t are greater than or equal to predetermined values, or when .DELTA.V/.DELTA.t and T are greater than or equal to predetermined values, or when V is greater than or equal to a maximum value V.sub.P, or when either the -.DELTA.V or T is greater than or equal to a predetermined value.Type: GrantFiled: February 28, 1994Date of Patent: May 6, 1997Assignee: Fujitsu LimitedInventor: Yoshiro Takeda
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Patent number: 4637759Abstract: The invention provides a method for improving the nature of soil in a salty land not suitable for agriculture by forming a moisture barrier in the soil with formation of a water-impermeable layer of soil underground. The method comprises sprinkling a water-soluble polymer, e.g. a copolymer of acrylic acid, or polymer blend including, for example, polyacrylic acid, capable of being insolubilized by interacting with the salt, preferably, in an aqueous solution over the salty land so that a water-impermeable layer underground is formed by the insolubilized polymer together with the soil particles.Type: GrantFiled: April 24, 1984Date of Patent: January 20, 1987Assignee: Lion CorporationInventors: Yutaka Owa, Yoshiro Tanaka, Takeshi Saito, Yoshiro Takeda
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Patent number: 4018756Abstract: A cationic dye compound of the formula ##STR1## wherein the group ##STR2## represents an unsubstituted or 4 and/or 5-substituted thiazole ring, or an unsubstituted or 6-substituted benzothiazole ring, B represents an indolyl group represented by the formula ##STR3## wherein R.sub.1 represents an alkyl having 1 to 4 carbon atoms, an aralkyl or an aryl, said aryl may have an alkyl having 1 to 2 carbon atoms, an alkoxy having 1 to 2 carbon atoms, a halogen, cyano or nitro, and R.sub.2 represents hydrogen, an alkyl having 1 to 4 carbon atoms, an alkoxyalkyl, an acyloxyalkyl, a haloalkyl, a cyanoalkyl or a carbamoylalkyl, or an anilino group represented by the formula ##STR4## wherein R.sub.3 represents hydrogen, an alkyl having 1 to 2 carbon atoms, an alkoxy having 1 to 2 carbon atoms, a halogen, cyano or nitro, R.sub.4 and R.sub.Type: GrantFiled: June 14, 1971Date of Patent: April 19, 1977Assignee: Sumitomo Chemical Company, LimitedInventors: Masaaki Ohkawa, Yoshio Tanaka, Yoshiro Takeda, Tadao Kinoshita, Kazuyoshi Hirabayashi
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Patent number: 3974178Abstract: A compound of the formula (I): ##SPC1##whereinR.sub.1 is a C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.2 alkoxy- or cyano-substituted C.sub.1 -C.sub.4 alkyl,R.sub.2 is a C.sub.1 -C.sub.4 alkyl, phenyl, C.sub.1 -C.sub.2 alkoxy-substituted phenyl, C.sub.7 -C.sub.8 aralkyl or cyclophenyl,R.sub.3 is a C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy-substituted C.sub.1 -C.sub.2 alkyl or phenoxy-substituted C.sub.1 -C.sub.2 alkyl,X is hydrogen, a halogen or N,N--di--C.sub.1 -C.sub.4 alkylsulfonamide,Y is hydrogen, a C.sub.1 -C.sub.2 alkyl or a halogen,n is an integer of from 1 to 2, andZ.sup.- is an anion,Which is useful for dyeing acid modified polyacrylonitrile, polyester or polyamide fibers with a high fastness and an excellent vividness.Type: GrantFiled: March 21, 1973Date of Patent: August 10, 1976Assignee: Sumitomo Chemical Company, LimitedInventors: Masaaki Ohkawa, Seizo Konishi, Kazuyoshi Hirabayashi, Sadaharu Abeta, Tetsuo Okaniwa, Yoshiro Takeda