Patents by Inventor Akira Shiba
Akira Shiba 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: 20170151803Abstract: A liquid container can be mounted to an apparatus in which an optical sensor is installed. The liquid container has a reservoir storing a liquid, a detection chamber communicates with the reservoir and a displacement member displacing according to an amount of liquid stored in the reservoir. The displacement member has a light shielding part that moves in a first direction between a position where light of the optical sensor is shielded and a position where the light is not shielded and a regulating member regulating movement of the displacement member in a direction crossing the first direction. An inner wall of the detection chamber has a first area facing the light shielding part and transmitting the light of the optical sensor and a second area facing the regulating member. The first area and the second area are connected via a ridgeline having an inter-surface angle larger than 180 degrees.Type: ApplicationFiled: October 24, 2016Publication date: June 1, 2017Inventors: Kazuya Yoshii, Hiroki Hayashi, Tsubasa Takaoka, Ryo Shimamura, Akira Shiba
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Publication number: 20170136776Abstract: There are provided a liquid ejection apparatus with low costs, a liquid container, and a manufacturing method thereof. To this end, a rocking body is assembled to the liquid container to suppress the drop thereof by melting and swaging of a support shaft.Type: ApplicationFiled: October 28, 2016Publication date: May 18, 2017Inventors: Akira Shiba, Tsubasa Takaoka, Hiroki Hayashi, Kazuya Yoshii, Ryo Shimamura
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Patent number: 9242471Abstract: A compression member is used to press a first outer surface of a negative pressure generating member which contacts a surface of a partition wall and to press a second outer surface of the negative pressure generating member which contacts an inner surface of a first recessed portion located opposite the partition wall. The negative pressure generating member is placed in the first recessed portion with releasing the pressure exerted on the first outer surface while maintaining the pressure exerted on the second outer surface. After the negative pressure generating member is placed in the first recessed portion, the pressure exerted on the outer surface of the negative pressure generating member is released.Type: GrantFiled: February 21, 2012Date of Patent: January 26, 2016Assignee: CANON KABUSHIKI KAISHAInventors: Isamu Yoneda, Akira Shiba, Ryota Yamada
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Publication number: 20150352851Abstract: There is provided a method of filling a liquid container with liquid such that an amount of remaining air is suppressed to be as small as possible. For this purpose, while performing, on a liquid containing chamber, a primary pressure reduction, a primary injection, a secondary pressure reduction, and a secondary injection in turn, degrees of the primary pressure reduction and secondary pressure reduction are each appropriately adjusted to fill the liquid with a target amount of air remaining.Type: ApplicationFiled: May 28, 2015Publication date: December 10, 2015Inventors: Akira Shiba, Naozumi Nabeshima, Koichi Kubo
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Patent number: 9139012Abstract: The present invention enables a suitable ink filling state of an ink tank to be achieved by setting ink filling conditions taking prevention of ink leakage during unsealing of an ink supply port into account. An ink tank includes a first storage chamber formed in the ink tank to store an ink absorber, and a second storage chamber also formed in the ink tank to substantially form a closed space except for a communication section communicating with the first storage chamber. After the pressure in the ink tank is reduced to a target pressure through an atmospheric communicating port, the ink tank is internally filled, through an ink supply port, with a target filling amount of ink associated with the target pressure.Type: GrantFiled: October 9, 2014Date of Patent: September 22, 2015Assignee: CANON KABUSHIKI KAISHAInventors: Ryota Yamada, Akira Shiba, Isamu Yoneda
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Publication number: 20150109377Abstract: The present invention enables a suitable ink filling state of an ink tank to be achieved by setting ink filling conditions taking prevention of ink leakage during unsealing of an ink supply port into account. An ink tank includes a first storage chamber formed in the ink tank to store an ink absorber, and a second storage chamber also formed in the ink tank to substantially form a closed space except for a communication section communicating with the first storage chamber. After the pressure in the ink tank is reduced to a target pressure through an atmospheric communicating port, the ink tank is internally filled, through an ink supply port, with a target filling amount of ink associated with the target pressure.Type: ApplicationFiled: October 9, 2014Publication date: April 23, 2015Inventors: Ryota Yamada, Akira Shiba, Isamu Yoneda
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Patent number: 8960875Abstract: There is provided an insert method of a negative-pressure generating member where, upon inserting a negative-pressure generating member 130 into a negative-pressure generating member accommodating chamber, the negative-pressure generating member 130 is inserted while being rotated to a predetermined rotation angle, is inserted to the bottom portion in the negative-pressure generating member accommodating chamber while retaining the rotated angle, and further, is inserted by rotating the negative-pressure member 130 in a reverse direction to the previous rotation direction, thereby increasing a density of the negative-pressure generating member in the partition wall adjacent section.Type: GrantFiled: February 21, 2012Date of Patent: February 24, 2015Assignee: Canon Kabushiki KaishaInventors: Akira Shiba, Isamu Yoneda, Ryota Yamada
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Patent number: 8724618Abstract: An information processing apparatus for call control and management stores a first telephone identification and a first IP address of a first IP telephone, a first device identification and a second IP address of a first information processing device associated with the first IP telephone by a first association identification, a second telephone identification and a third IP address of the second IP telephone, and a second device identification and a fourth IP address of a second information processing device associated with the second IP telephone.Type: GrantFiled: August 16, 2006Date of Patent: May 13, 2014Assignee: Fujitsu LimitedInventors: Yasushi Hara, Akira Shiba, Youichi Kondou
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Patent number: 8428540Abstract: A communication apparatus includes an I and Q digital values table that stores values of I and Q, which are parameters for noise cancellation determined in advance, for each of reception channels. The communication apparatus reads out parameters for noise cancellation corresponding to a reception channel from the I and Q digital values table. Subsequently, the communication apparatus cancels a noise signal from a reception signal using the read-out parameters for noise cancellation.Type: GrantFiled: September 23, 2008Date of Patent: April 23, 2013Assignee: Fujitsu LimitedInventors: Akira Shiba, Shinichi Shiotsu
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Publication number: 20120227861Abstract: There is provided an insert method of a negative-pressure generating member where, upon inserting a negative-pressure generating member 130 into a negative-pressure generating member accommodating chamber, the negative-pressure generating member 130 is inserted while being rotated to a predetermined rotation angle, is inserted to the bottom portion in the negative-pressure generating member accommodating chamber while retaining the rotated angle, and further, is inserted by rotating the negative-pressure member 130 in a reverse direction to the previous rotation direction, thereby increasing a density of the negative-pressure generating member in the partition wall adjacent section.Type: ApplicationFiled: February 21, 2012Publication date: September 13, 2012Applicant: CANON KABUSHIKI KAISHAInventors: Akira Shiba, Isamu Yoneda, Ryota Yamada
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Publication number: 20120216491Abstract: A compression member is used to press a first outer surface of a negative pressure generating member which contacts a surface of a partition wall and to press a second outer surface of the negative pressure generating member which contacts an inner surface of a first recessed portion located opposite the partition wall. The negative pressure generating member is placed in the first recessed portion with releasing the pressure exerted on the first outer surface while maintaining the pressure exerted on the second outer surface. After the negative pressure generating member is placed in the first recessed portion, the pressure exerted on the outer surface of the negative pressure generating member is released.Type: ApplicationFiled: February 21, 2012Publication date: August 30, 2012Applicant: CANON KABUSHIKI KAISHAInventors: Isamu Yoneda, Akira Shiba, Ryota Yamada
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Patent number: 8243635Abstract: An information processing apparatus includes a storage unit including plural memory banks, a wireless communication unit for executing the wireless communication process, a communication quality information storage unit for storing the communication quality information indicating the communication quality of the wireless communication unit in the case where one of the plural memory banks is used, a memory bank selection unit for selecting the memory bank based on the communication quality information stored in the communication quality information storage unit in the case where the wireless communication process is executed by the wireless communication unit, and a memory bank switching unit for switching to the memory bank selected by the memory bank selection unit.Type: GrantFiled: March 26, 2009Date of Patent: August 14, 2012Assignee: Fujitsu LimitedInventors: Koichi Yokota, Akira Shiba, Shinichi Shiotsu, Satoshi Kazama
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Publication number: 20120088465Abstract: A noise canceller, information processing apparatus and noise removal method for implementing miniaturization and allowing noise reduction are provided. A generation unit 25 generates a removal signal for removing noise for reception signal received at a plurality of antennas 30, 31 and 32. A delay unit 21 is provided between the plurality of antennas 30, 31 and 32 and the generation unit 25 or between the antennas 31 and 32 other than the antenna 30 in the plurality of antennas 30, 31 and 32 and the generation unit 25, and delays the removal signal generated in the generation unit 25.Type: ApplicationFiled: December 20, 2011Publication date: April 12, 2012Applicant: Fujitsu LimitedInventors: Koichi YOKOTA, Akira SHIBA, Shinichi SHIOTSU, Akira ITASAKI
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Patent number: 8103235Abstract: A phase and amplitude controller reads from a switching control table an antenna switching number and values of I and Q corresponding to a receiving channel number reported from a W-CDMA receiver module, and outputs the antenna switching number and the values of I and Q to a switch and DACs, respectively. After a phase and amplitude adjustment IC adjusts the phase and amplitude of a noise signal obtained through the switch by using the values of I and Q inputted through the DACs, it inverts the phase of the noise signal and adds the resulting signal to a reception signal received by a communication antenna, and consequently the noise component is canceled from the reception signal.Type: GrantFiled: October 24, 2008Date of Patent: January 24, 2012Assignee: Fujitsu LimitedInventors: Shinichi Shiotsu, Akira Shiba
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Patent number: 7859841Abstract: Information equipment includes an open/close mechanism that opens or closes exhaust ports, a cooling fan that dissipates heat in the information equipment into the air through the exhaust ports, a user state detecting part that detects a contact state in which the hand of a user is in contact with the information equipment or a closeness state in which the hand of the user is close to the information equipment, and a heat dissipation control part that controls an open/closed state of the open/close mechanism so that heat exhausted from the exhaust ports is not directed to the hand of the user that is contact with or close to the information equipment, in accordance with the contact state or the closeness state detected by the user state detecting part.Type: GrantFiled: September 22, 2008Date of Patent: December 28, 2010Assignee: Fujitsu LimitedInventors: Yuki Tamura, Yoshiyasu Nakashima, Shinichi Shiotsu, Akira Shiba, Koichi Yokota
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Publication number: 20090245217Abstract: An information processing apparatus includes a storage unit including plural memory banks, a wireless communication unit for executing the wireless communication process, a communication quality information storage unit for storing the communication quality information indicating the communication quality of the wireless communication unit in the case where one of the plural memory banks is used, a memory bank selection unit for selecting the memory bank based on the communication quality information stored in the communication quality information storage unit in the case where the wireless communication process is executed by the wireless communication unit, and a memory bank switching unit for switching to the memory bank selected by the memory bank selection unit.Type: ApplicationFiled: March 26, 2009Publication date: October 1, 2009Applicant: Fujitsu LimitedInventors: Koichi Yokota, Akira Shiba, Shinichi Shiotsu, Satoshi Kazama
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Publication number: 20090219673Abstract: Information equipment includes an open/close mechanism that opens or closes exhaust ports, a cooling fan that dissipates heat in the information equipment into the air through the exhaust ports, a user state detecting part that detects a contact state in which the hand of a user is in contact with the information equipment or a closeness state in which the hand of the user is close to the information equipment, and a heat dissipation control part that controls an open/closed state of the open/close mechanism so that heat exhausted from the exhaust ports is not directed to the hand of the user that is contact with or close to the information equipment, in accordance with the contact state or the closeness state detected by the user state detecting part.Type: ApplicationFiled: September 22, 2008Publication date: September 3, 2009Applicant: Fujitsu LimitedInventors: Yuki Tamura, Yoshiyasu Nakashima, Shinichi Shiotsu, Akira Shiba, Koichi Yokota
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Publication number: 20090197558Abstract: A phase and amplitude controller reads from a switching control table an antenna switching number and values of I and Q corresponding to a receiving channel number reported from a W-CDMA receiver module, and outputs the antenna switching number and the values of I and Q to a switch and DACs, respectively. After a phase and amplitude adjustment IC adjusts the phase and amplitude of a noise signal obtained through the switch by using the values of I and Q inputted through the DACs, it inverts the phase of the noise signal and adds the resulting signal to a reception signal received by a communication antenna, and consequently the noise component is canceled from the reception signal.Type: ApplicationFiled: October 24, 2008Publication date: August 6, 2009Applicant: FUJITSU LIMITEDInventors: Shinichi Shiotsu, Akira Shiba
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Publication number: 20090181632Abstract: A communication apparatus includes an I and Q digital values table that stores values of I and Q, which are parameters for noise cancellation determined in advance, for each of reception channels. The communication apparatus reads out parameters for noise cancellation corresponding to a reception channel from the I and Q digital values table. Subsequently, the communication apparatus cancels a noise signal from a reception signal using the read-out parameters for noise cancellation.Type: ApplicationFiled: September 23, 2008Publication date: July 16, 2009Applicant: FUJITSU LIMITEDInventors: Akira Shiba, Shinichi Shiotsu
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Patent number: 7531995Abstract: An electronic device includes: a DC power source which supplies a first DC supply voltage; a DC voltage converter which is enabled or disabled in response to a first control signal, and which converts the first DC supply voltage into a second DC supply voltage different from the first DC supply voltage, when the DC voltage converter is enabled; a switch which selects and supplies either the first DC supply voltage or the second DC supply voltage as an output in response to a second control signal; a DC voltage regulator which is enabled or disabled in response to a third control signal, and which converts the DC supply voltage selected by the switch into a third supply voltage lower than the selected DC supply voltage when said DC voltage regulator is enabled; a control unit which provides the second control signal to the switch; and a loading which utilizes the third DC supply voltage.Type: GrantFiled: August 15, 2007Date of Patent: May 12, 2009Assignee: Fujitsu LimitedInventors: Yasushi Hara, Akira Shiba, Yukihisa Taike