Patents by Inventor Yasufumi Takahashi

Yasufumi Takahashi 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).

  • Patent number: 8343662
    Abstract: A nonaqueous electrolyte secondary battery in which a lithium transition metal complex oxide containing at least Ni and Mn as transition metals and having a layered structure is used as a positive active material, the lithium transition metal complex oxide containing at least Ni and Mn as transition metals and having a layered structure further containing zirconium.
    Type: Grant
    Filed: August 5, 2004
    Date of Patent: January 1, 2013
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Shingo Tode, Akira Kinoshita, Hiroyuki Fujimoto, Yasufumi Takahashi, Ikuro Nakane, Shin Fujitani
  • Patent number: 8346105
    Abstract: An information storage device installed in a removable device configured to be removably installed in an image forming apparatus body, includes: an information storage unit that stores information communicated between the image forming apparatus body and the removable device; a terminal that comes in contact with a body side terminal; and a substrate that holds the information storage unit and the terminal and includes a hole configured to be engaged with a protruding section installed in the image forming apparatus body. The terminal includes a plurality of terminals each including one of a plurality of metallic plates arranged in a transverse direction thereof. An earth terminal, which comes in contact with a body side earth terminal formed in the protruding section, is formed in the hole. The hole is disposed at a position sandwiched between two metallic plates among the plurality of metallic plates.
    Type: Grant
    Filed: April 17, 2012
    Date of Patent: January 1, 2013
    Assignee: Ricoh Company, Limited
    Inventors: Yasufumi Takahashi, Kunihiro Ohyama, Masayuki Yamane, Takeshi Uchitani, Tadashi Hayakawa, Takuji Takahashi, Shouji Okabe, Akira Shinshi, Yuichiro Ueda, Masaki Takahashi, Yuuki Satoh
  • Publication number: 20120308242
    Abstract: A toner container is removably installable in an image forming apparatus having a communication portion and a positioning hole. The toner container includes an electronic data storage device disposed on a surface of the toner container, to communicate with the communication portion in the image forming apparatus, the electronic data storage device having an engaged hole; and a positioning projection, formed in the surface of the toner container, to engage the engaged hole of the electronic data storage device and the positioning hole in the image forming apparatus. The positioning projection inserts into the positioning hole in the image forming apparatus with the positioning projection engaging the engaged hole in the electronic data storage device to determine an installation position of the toner container relative to the image forming apparatus and set the electronic data storage device relative to the communication portion in the image forming apparatus.
    Type: Application
    Filed: May 9, 2012
    Publication date: December 6, 2012
    Inventors: Masayuki YAMANE, Tadashi HAYAKAWA, Kunihiro OHYAMA, Takeshi UCHITANI, Yasufumi TAKAHASHI
  • Patent number: 8326189
    Abstract: There is provided a separation member for separating a first conveying path formed by a first conveying member from a second conveying path formed by a second conveying member. There is also provided an opposed member facing a magnetic pole H4 at an upstream side of two magnetic poles H4 and H6 that forms a developer-releasing magnetic pole H5.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: December 4, 2012
    Assignee: Ricoh Company, Limited
    Inventors: Yoshiyuki Fukuda, Katsumi Masuda, Nobuyuki Taguchi, Yuuki Satoh, Yasufumi Takahashi, Keiichi Yoshida, Yoshio Hattori, Akira Azami, Takamasa Ozeki, Toshiki Hayashi
  • Patent number: 8316663
    Abstract: An expander-compressor unit (30) includes: a closed casing (1) holding an oil at a bottom portion thereof; a motor (2) provided in the closed casing (1); a compression mechanism (3) for compressing a refrigerant and discharging it into the closed casing (1), the compression mechanism (3) being disposed below the motor (2) in the closed casing (1); an expansion mechanism (4) disposed below the compression mechanism (3) in the closed casing (1); and a coupling mechanism (50) for coupling a compression mechanism side shaft (5) to an expansion mechanism side shaft (6). An oil supply passage (53) for supplying the oil to the compression mechanism (3) is formed in the compression mechanism side shaft (5). An oil suction port (53A) is provided in a portion of the compression mechanism side shaft (5), the portion being above the expansion mechanism (4).
    Type: Grant
    Filed: April 2, 2008
    Date of Patent: November 27, 2012
    Assignee: Panasonic Corporation
    Inventors: Atsuo Okaichi, Yasufumi Takahashi, Hiroshi Hasegawa, Masaru Matsui, Fuminori Sakima
  • Publication number: 20120259226
    Abstract: An ultrasound diagnostic apparatus comprises: an ultrasound probe, the ultrasound probe having a transducer array which transmits ultrasonic waves, receives an ultrasonic echo reflected by a subject, and outputs a reception signal according to the received ultrasonic waves, a signal processor which includes a reception amplifier having an amplifier amplifying the reception signal output from the transducer array and processes the reception signal, a selection unit for switching a current value of a bias current supplied to the amplifier, and a selection switch which performs a switching operation to switch the current value by the selection unit; and a diagnostic apparatus body which produces an ultrasound image according to the reception signal processed by the signal processor of the ultrasound probe.
    Type: Application
    Filed: April 6, 2012
    Publication date: October 11, 2012
    Inventor: Yasufumi TAKAHASHI
  • Patent number: 8268485
    Abstract: A nonaqueous electrolyte secondary battery which has a positive electrode containing lithium cobalt oxide as a positive active material, a negative electrode containing a graphite material and a nonaqueous electrolyte solution containing ethylene carbonate as a solvent and which is charged with an end-of-charge voltage of at least 4.3 V. Characteristically, the battery uses, as the positive active material, lithium cobalt oxide obtained by firing a mixture of a lithium salt, tricobalt tetraoxide (Co3O4) and a zirconium compound and having particle surfaces onto which the zirconium compound adheres.
    Type: Grant
    Filed: August 30, 2004
    Date of Patent: September 18, 2012
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Yasufumi Takahashi, Hiroyuki Fujimoto, Akira Kinoshita, Shingo Tode, Ikuro Nakane, Shin Fujitani
  • Publication number: 20120230735
    Abstract: An image-forming apparatus and toner container installation structure used in the image-forming apparatus, includes: a toner container with a toner container body, being attached to a fitting section in a body of the image-forming apparatus in a detachable manner; a latent image-bearing member, being formed with a latent image thereon; a developing unit, for developing the latent image with a toner supplied from the toner container body; an ID chip provided in the toner container, having a plurality of through-hole electrodes; and a substrate provided in the fitting section, having a plurality of pin electrodes. The pin electrodes are fitted into the through-hole electrodes when the toner container is attached to the fitting section.
    Type: Application
    Filed: March 6, 2012
    Publication date: September 13, 2012
    Inventors: Takeshi UCHITANI, Kunihiro Ohyama, Yasufumi Takahashi, Masayuki Yamane
  • Patent number: 8253386
    Abstract: Capacity degradation due to charge/discharge cycles is suppressed in either a non-aqueous electrolyte secondary cell provided with a positive electrode including, as a positive electrode active material, a lithium-transition metal complex oxide having a layered structure and containing at least Ni and Mn as transition metals, and a negative electrode containing a carbon material as a negative electrode active material and having a higher initial charge-discharge efficiency than that of the positive electrode, or an assembled battery having a plurality of cells each of which is the secondary cell. A control circuit incorporated in the secondary cell or the assembled battery, or in an apparatus using the secondary cell or the assembled battery, monitors the voltage of the secondary cell or each of the cells in the assembled battery so that the end-of-discharge voltage of each cell is 2.9 V or higher.
    Type: Grant
    Filed: September 7, 2004
    Date of Patent: August 28, 2012
    Assignee: SANYO Electric, Co., Ltd.
    Inventors: Akira Kinoshita, Shingo Tode, Yasufumi Takahashi, Hiroyuki Fujimoto, Ikuro Nakane, Shin Fujitani
  • Patent number: 8245531
    Abstract: A fluid machine (10) includes: a closed casing (11) having an oil reservoir (16) in its bottom portion; a main compression mechanism (3) supplied with oil contained in an upper portion (16a) of the oil reservoir; a rotation motor (8); a main compression mechanism side shaft (38) for coupling the main compression mechanism (3) and the rotation motor (8); a mechanical power recovery mechanism (5) disposed below the upper portion (16a) and recovering mechanical power from a working fluid; a sub-compression mechanism (2) disposed below the upper portion (16a); a mechanical power recovery shaft (16) for coupling the mechanical power recovery mechanism (5) and the sub-compression mechanism (2); and a heat-insulating structure (80) located between the upper portion (16a) and the mechanical power recovery mechanism (5) and restricting flow of oil between the upper portion (16a) of the oil reservoir (16) and a lower portion (16b) of the oil reservoir in which the mechanical power recovery mechanism (5) is provided.
    Type: Grant
    Filed: April 2, 2008
    Date of Patent: August 21, 2012
    Assignee: Panasonic Corporation
    Inventors: Yasufumi Takahashi, Hiroshi Hasegawa
  • Publication number: 20120200871
    Abstract: An information storage device installed in a removable device configured to be removably installed in an image forming apparatus body, includes: an information storage unit that stores information communicated between the image forming apparatus body and the removable device; a terminal that comes in contact with a body side terminal; and a substrate that holds the information storage unit and the terminal and includes a hole configured to be engaged with a protruding section installed in the image forming apparatus body. The terminal includes a plurality of terminals each including one of a plurality of metallic plates arranged in a transverse direction thereof. An earth terminal, which comes in contact with a body side earth terminal formed in the protruding section, is formed in the hole. The hole is disposed at a position sandwiched between two metallic plates among the plurality of metallic plates.
    Type: Application
    Filed: April 17, 2012
    Publication date: August 9, 2012
    Inventors: Yasufumi Takahashi, Kunihiro Ohyama, Masayuki Yamane, Takeshi Uchitani, Tadashi Hayakawa, Takuji Takahashi, Shouji Okabe, Akira Shinshi, Yuichiro Ueda, Masaki Takahashi, Yuuki Satoh
  • Patent number: 8231522
    Abstract: An electronic endoscope system includes an electronic endoscope having a CMOS image sensor on the tip of an insertion section, a light source device for illuminating the interior of a patient's body, and a processing device for reading out image signals from the CMOS image sensor. The electronic endoscope system can operate with a standard imaging mode and a special imaging mode. When the time taken to read out the image signals from all the pixels in the standard mode is defined as T, the light source device in the special imaging mode emits illumination light in every first half period T/2 while switching a wavelength of the illumination light between two different wavebands. In every second half period T/2, the processing device reads out the image signals from the half of the pixels.
    Type: Grant
    Filed: September 16, 2009
    Date of Patent: July 31, 2012
    Assignee: Fujifilm Corporation
    Inventors: Azuchi Endo, Masaki Takamatsu, Yasufumi Takahashi, Kazuhiro Nishida, Takashi Kido, Hiroyuki Hasegawa, Yasunori Ohta
  • Patent number: 8208840
    Abstract: A developer carrier which holds a developer on a surface and is rotatable includes: a plurality of grooves which is formed on the surface, wherein each of the grooves is wavy-lined, an inclination direction of the grooves to an axis of the developer carrier is cyclically changed in an opposite direction, and the grooves are respectively arranged at intervals.
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: June 26, 2012
    Assignee: Ricoh Company, Ltd.
    Inventor: Yasufumi Takahashi
  • Publication number: 20120148312
    Abstract: A toner supply device includes a toner storage section including plural toner containing sections and a dividing part, the plural toner containing sections being arranged from an upstream side to a downstream side in a toner feeding direction and including respective rotating members configured to rotate to feed the toner, the dividing part being formed between the toner containing sections adjacent to each other and including an upper end part. Further, a position of the upper end part of the dividing part is higher than a position of a rotational center of the rotating member included in the toner containing section on the upstream side in the toner feeding direction of the toner containing sections adjacent to each other.
    Type: Application
    Filed: November 8, 2011
    Publication date: June 14, 2012
    Inventor: Yasufumi TAKAHASHI
  • Publication number: 20120141169
    Abstract: An image forming apparatus includes an image forming unit, a toner container mount, first and second toner containers removably insertable into the toner container mount horizontally, container guides formed in toner container mount to guide lateral side portions of the first and second toner containers, respectively, and an insertion opening forming member positioned defining first and second insertion openings through which the first and second toner containers are inserted, each including a laterally projecting portion. The second toner container is greater than the first toner container in cross section perpendicular to a direction of insertion, and the second insertion opening is greater than the first insertion opening. The first and second toner containers include guided portions projecting laterally, and the guided portion of the first toner container has a vertical length longer than that of the guided portion of the second toner container.
    Type: Application
    Filed: November 25, 2011
    Publication date: June 7, 2012
    Inventors: Masayuki YAMANE, Kunihiro Ohyama, Takeshi Uchitani, Yasufumi Takahashi
  • Patent number: 8192185
    Abstract: An expander-compressor unit (200) includes a closed casing (1), a compression mechanism (2), an expansion mechanism (3), a shaft (5), and an oil pump (6). The shaft (5) includes an upper shaft (5s) provided with an upper eccentric portion (5a) for the compression mechanism (2), and a lower shaft (5t) provided with lower eccentric portions (5d and 5c) for the expansion mechanism (3) and an intermediate eccentric portion (5e) for the oil pump (6). The expansion mechanism (3) has an upper bearing member (45) for supporting a supported portion (5f) of the lower shaft (5t) located immediately above the lower eccentric portion (5d). The intermediate eccentric portion (5e) has a diameter equal to or less than that of the supported portion (5f).
    Type: Grant
    Filed: October 29, 2008
    Date of Patent: June 5, 2012
    Assignee: Panasonic Corporation
    Inventors: Masanobu Wada, Yu Shiotani, Shingo Oyagi, Yasufumi Takahashi, Takeshi Ogata
  • Patent number: 8186179
    Abstract: An the expander-compressor unit (100) includes a closed casing (1) in which an oil can be stored in its bottom part, a compression mechanism (2) disposed in an upper part of the closed casing (1), an expansion mechanism (3) disposed in a lower part of the closed casing (1), a shaft (5) for coupling the compression mechanism (2) and the an expansion mechanism (3) to each other, and an oil pump (6), disposed between the compression mechanism (2) and the expansion mechanism (3), for supplying the oil (26) filling a surrounding space of the expansion mechanism (3) to the compression mechanism (2).
    Type: Grant
    Filed: April 24, 2007
    Date of Patent: May 29, 2012
    Assignee: Panasonic Corporation
    Inventors: Yasufumi Takahashi, Hiroshi Hasegawa, Masaru Matsui, Atsuo Okaichi, Takeshi Ogata
  • Patent number: 8182251
    Abstract: An expander-compressor unit (200A) includes a closed casing (1), a compression mechanism (2), an expansion mechanism (3), a shaft (5), and an oil pump (6). The shaft (5) couples the compression mechanism (2) to the expansion mechanism (3) so that power recovered by the expansion mechanism (3) is transferred to the compression mechanism (2). The oil pump (6) is disposed between the compression mechanism (2) and the expansion mechanism (3), and supplies an oil held in an oil reservoir (25) to the compression mechanism (2). An oil supply passage (29) is formed in the shaft (5) so that the oil discharged from the oil pump (6) can be supplied to the compression mechanism (2). A lower end (29e) of the oil supply passage (29) is located below an inlet (29p) of the oil supply passage (29) formed in an outer circumferential surface of the shaft (5).
    Type: Grant
    Filed: October 23, 2008
    Date of Patent: May 22, 2012
    Assignee: Panasonic Corporation
    Inventors: Yu Shiotani, Takeshi Ogata, Shingo Oyagi, Masanobu Wada, Yasufumi Takahashi
  • Publication number: 20120117993
    Abstract: A vehicle air conditioner (1A) includes a heat pump circuit (2) including a compressor (11), an outdoor heat exchanger (13), an expansion mechanism (14), a first indoor heat exchanger (15), and a second indoor heat exchanger (16). The flow direction of a refrigerant in the heat pump circuit (2) is switched, by a switching member (12A), between a first direction in which the refrigerant discharged from the compressor (11) passes through the outdoor heat exchanger (13), the expansion mechanism (14), the first indoor heat exchanger (15), and the second indoor heat exchanger (16) in this order and returns to the compressor (11), and a second direction in which the refrigerant discharged from the compressor (11) passes through the first indoor heat exchanger (15), the expansion mechanism (14), the outdoor heat exchanger (13), and the second indoor heat exchanger (16) in this order and returns to the compressor (11).
    Type: Application
    Filed: April 21, 2011
    Publication date: May 17, 2012
    Applicant: PANASONIC CORPORATION
    Inventor: Yasufumi Takahashi
  • Patent number: 8177525
    Abstract: An expander-integrated compressor 200A includes a closed casing 1, a compression mechanism 2, an expansion mechanism 3, a shaft 5, an oil pump 6, and a heat insulating structure 30A. The oil pump 6 is disposed between the compression mechanism 1 and the expansion mechanism 3, and draws, via an oil suction port 62q, an oil held in an oil reservoir 25 to supply it to the compression mechanism 2. The heat insulating structure 30A is disposed between the oil pump 6 and the expansion mechanism 3, and limits a flow of the oil between an upper tank 25a, in which the oil suction port 62q is located, and a lower tank 25b, in which the expansion mechanism 3 is located, so as to suppress heat transfer from the oil filling the upper tank 25a to the oil filling the lower tank 25b.
    Type: Grant
    Filed: November 21, 2007
    Date of Patent: May 15, 2012
    Assignee: Panasonic Corporation
    Inventors: Yasufumi Takahashi, Hiroshi Hasegawa, Takumi Hikichi, Takeshi Ogata