Patents by Inventor Koh Watanabe

Koh Watanabe 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: 6411063
    Abstract: A power source has a battery pack housing a plurality of interconnected battery modules wherein a plurality of single cells are connected serially. A blower is provided which forces air through the battery pack to maintain the battery modules at a correct temperature. A controller controls the blower in accordance with data provided by sensors which detect voltage, current and temperature. The controller outputs the data and a state of charge. A charging/discharging current circuit includes a relay for interrupting charging and discharging of the battery modules in the event of failure and also includes a rush current prevention resistor and a current sensor. The controller permits the power source to be maintained in a correct operating condition wherein neither overcharging nor undercharging occurs.
    Type: Grant
    Filed: August 29, 2000
    Date of Patent: June 25, 2002
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Katsumi Kouzu, Tadao Kimura, Toshiaki Nakanishi, Shuuhei Marukawa, Kiwamu Inui, Koh Watanabe, Kunio Kanamaru
  • Patent number: 6344728
    Abstract: A power source has a battery pack housing a plurality of interconnected battery modules wherein a plurality of single cells are connected serially. A blower is provided which forces air through the battery pack to maintain the battery modules at a correct temperature. A controller controls the blower in accordance with date provided by sensors which detect voltage, current and temperature. The controller outputs the data and a state of charge. A charging/discharging current circuit includes a relay for interrupting charging and discharging of the battery modules in the event of failure and also includes a rush current prevention resistor and a current sensor. The controller permits the power source to be maintained in a correct operating condition wherein neither overcharging nor undercharging occurs.
    Type: Grant
    Filed: September 30, 1999
    Date of Patent: February 5, 2002
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Katsumi Kouzu, Tadao Kimura, Toshiaki Nakanishi, Shuuhei Marukawa, Kiwamu Inui, Koh Watanabe, Kunio Kanamaru
  • Patent number: 6225788
    Abstract: A power source has a battery pack housing a plurality of interconnected battery modules wherein a plurality of single cells are connected serially. A blower is provided which forces air through the battery pack to maintain the battery modules at a correct temperature. A controller controls the blower in accordance with data provided by sensors which detect voltage, current and temperature. The controller outputs the data and a state of charge. A charging/discharging current circuit includes a relay for interrupting charging and discharging of the battery modules in the event of failure and also includes a rush current prevention resistor and a current sensor. The controller permits the power source to be maintained in a correct operating condition wherein neither overcharging nor undercharging occurs.
    Type: Grant
    Filed: August 29, 2000
    Date of Patent: May 1, 2001
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Katsumi Kouzu, Tadao Kimura, Toshiaki Nakanishi, Shuuhei Marukawa, Kiwamu Inui, Koh Watanabe, Kunio Kanamaru
  • Patent number: 6211646
    Abstract: Battery power source device wherein a large number of battery modules (9) consisting of a row of a plurality of single cells (7) connected electrically and mechanically in series are arranged parallel to each other and held in a holder casing (10), bus bars (28) being provided that effect electrical connection between the terminals of battery modules (9) at respective end plates (19), (20) positioned at both ends of this holder casing (10) wherein the end plates (19), (20) are constituted of resin plates and the bus bars (28) are fixed to the end plates (19), (20) by insertion molding.
    Type: Grant
    Filed: July 10, 2000
    Date of Patent: April 3, 2001
    Assignees: Matsushita Electric Industrial Co., Ltd., Toyota Jidosha Kabushiki Kaisha
    Inventors: Katsumi Kouzu, Takaki Kobayashi, Shuuhei Marukawa, Toyohiko Etoh, Koh Watanabe, Yasuyoshi Fukao, Manabu Kakino, Kiwamu Inui, Kunio Kanamaru
  • Patent number: 6211645
    Abstract: Battery power source device wherein a large number of battery modules (9) consisting of a row of a plurality of single cells (7) connected electrically and mechanically in series are arranged parallel to each other and held in a holder casing (10), bus bars (28) being provided that effect electrical connection between the terminals of battery modules (9) at respective end plates (19), (20) positioned at both ends of this holder casing (10) wherein the end plates (19), (20) are constituted of resin plates and the bus bars (28) are fixed to the end plates (19), (20) by insertion molding.
    Type: Grant
    Filed: July 10, 2000
    Date of Patent: April 3, 2001
    Assignees: Matsushita Electric Industrial Co., Ltd., Toyota Jidosha Kabushiki Kaisha
    Inventors: Katsumi Kouzu, Takaki Kobayashi, Shuuhei Marukawa, Toyohiko Etoh, Koh Watanabe, Yasuyoshi Fukao, Manabu Kakino, Kiwamu Inui, Kunio Kanamaru
  • Patent number: 6130003
    Abstract: A battery assembly which has a number of battery modules (16). For manufacturing, a battery module (16) is built in a battery case (10) having a fixed bulkhead (14) and a middle bulkhead (20) such that the module (16) penetrates the bulkheads (14) (20) via a battery holding opening (18) and a battery passing opening (22). The battery module (16) consists of batteries (12), with the connection parts of the batteries (12) held and supported by the battery holding openings (18) of the fixed bulkhead (14). A cooling/warming medium which flows upward is blocked or the cross sectional area of the cooling/warming medium flow is adjusted by a turning projection (38) so that the batteries (12) are effectively cooled or warmed irrespective of their vertical positions. A separately formed middle bulkhead (20) can facilitate manufacturing and assembling of the assembly. Batteries (12) can be more effectively cooled or warmed by using a smaller number of parts at a smaller number of assembling steps.
    Type: Grant
    Filed: November 16, 1998
    Date of Patent: October 10, 2000
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Toyohiko Etoh, Koh Watanabe
  • Patent number: 6111387
    Abstract: Battery power source device wherein a large number of battery modules (9) consisting of a row of a plurality of single cells (7) connected electrically and mechanically in series are arranged parallel to each other and held in a holder casing (10), bus bars (28) being provided that effect electrical connection between the terminals of battery modules (9) at respective end plates (19), (20) positioned at both ends of this holder casing (10) wherein the end plates (19), (20) are constituted of resin plates and the bus bars (28) are fixed to the end plates (19), (20) by insertion molding.
    Type: Grant
    Filed: March 23, 1998
    Date of Patent: August 29, 2000
    Assignees: Matsushita Electric Industrial Co., Ltd., Toyota Jidosha Kabushiki Kaisha
    Inventors: Katsumi Kouzu, Takaki Kobayashi, Shuuhei Marukawa, Toyohiko Etoh, Koh Watanabe, Yasuyoshi Fukao, Manabu Kakino, Kiwamu Inui, Kunio Kanamaru
  • Patent number: 5480104
    Abstract: A deactivating device for a locking mechanism of a pretensioner. The deactivating device includes: an operation lever provided movably about a central axis of rotation and in a direction of the central axis of rotation, and adapted to set the locking mechanism in one of an activated state and a deactivated state; and an urging member for imparting an urging force to the operation lever, wherein the operation lever has a deactivation operation mode for setting the locking mechanism in the deactivated state as the operation lever moves continuously in stages about the central axis of rotation and in the direction of the central axis of rotation against the urging force of the urging member and a position of the operation lever is subsequently held, and an activation operation mode for setting the locking mechanism in the activated state as the operation lever is automatically made to undergo returning movement by the urging force of the urging member from the deactivation operation mode.
    Type: Grant
    Filed: December 13, 1994
    Date of Patent: January 2, 1996
    Assignee: Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho
    Inventors: Keiichi Kato, Keisuke Imai, Masanori Oyabu, Yasuhiko Kouda, Makoto Isomura, Takuya Nezaki, Koh Watanabe
  • Patent number: 4608173
    Abstract: A filter of a nonwoven fabric capable of removing particles from a fluid has attached to the fibers of said fabric a polymeric substance having a functional group capable of adsorbing said particles. In a preferred embodiment the filter is used to remove carbonaceous particles from a hydrocarbon liquid.
    Type: Grant
    Filed: June 7, 1985
    Date of Patent: August 26, 1986
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Koh Watanabe, Michihide Tokashiki, Sadao Wada
  • Patent number: 4401799
    Abstract: A titanium trichloride catalytic complex is produced by reducing titanium tetrachloride with an organo-metal compound and then treating the resulting reduced solids product with a chlorinated saturated aliphatic hydrocarbon having three to eight carbon atoms in the presence of a complexing agent. The resulting titanium trichloride complex composition, when employed as a co-catalyst with an organo-metal compound for Ziegler-type catalysts in polymerization of .alpha.-olefins, results in uniform polymer grains with unexpectedly high polymerization activity and high stereoregular polymer yielding ratios.
    Type: Grant
    Filed: July 20, 1979
    Date of Patent: August 30, 1983
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Hiroshi Ueno, Eiji Sezaki, Naomi Inaba, Tokuo Makishima, Koh Watanabe, Shozo Wada
  • Patent number: 4321346
    Abstract: A titanium trichloride catalytic complex is produced by reducing titanium tetrachloride with an organo-metal compound and then treating the resulting reduced solids product with a chlorinated saturated hydrocarbon having two carbon atoms in the presence of a complexing agent. The resulting titanium trichloride complex composition, when employed as a co-catalyst with an organo-metal compound for Ziegler-type catalysts in polymerization of .alpha.-olefins, results in uniform polymer grains with unexpectedly high polymerization activity and high stereoregular polymer yielding ratios.
    Type: Grant
    Filed: July 20, 1979
    Date of Patent: March 23, 1982
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Hiroshi Ueno, Naomi Inaba, Tukuo Makishima, Koh Watanabe, Shozo Wada
  • Patent number: 4240928
    Abstract: A titanium trichloride catalytic complex is produced by reducing titanium tetrachloride with an alkylaluminum halide composition at low temperature and then treating the resulting reduced solids product by contacting it at elevated temperature with a dialkyl ether having alkyl groups of 4 to 5 carbon atoms and with hexachloroethane, the proportion of dialkyl ether being at least 1 mol per 1 mol of hexachloroethane and the proportion of hexachloroethane being at least greater than about 0.5 mol per 1 gram atom of titanium in the reduced solids product. The resulting titanium trichloride complex composition, when employed as co-catalyst with an organo-metal compound for Ziegler-type catalysts in polymerization of .alpha.-olefins, results in uniform polymer grains with unexpectedly high polymerization activity and high stereoregular polymer yielding ratios.
    Type: Grant
    Filed: July 25, 1978
    Date of Patent: December 23, 1980
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Hiroshi Ueno, Naomi Inaba, Tukuo Makishima, Koh Watanabe, Shozo Wada
  • Patent number: 4183826
    Abstract: A titanium trichloride catalytic complex is produced by reducing titanium tetrachloride with an organo-metal compound and then treating the resulting reduced solids product with a chlorinated saturated aliphatic hydrocarbon having three to eight carbon atoms in the presence of a complexing agent. The resulting titanium trichloride complex composition, when employed as a co-catalyst with an organo-metal compound for Ziegler-type catalysts in polymerization of .alpha.-olefins, results in uniform polymer grains with unexpectedly high polymerization activity and high stereoregular polymer yielding ratios.
    Type: Grant
    Filed: February 9, 1979
    Date of Patent: January 15, 1980
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Hiroshi Ueno, Eiji Sezaki, Naomi Inaba, Tokuo Makishima, Koh Watanabe, Shozo Wada
  • Patent number: 4182691
    Abstract: A titanium trichloride catalytic complex is produced by reducing titanium tetrachloride with an organo-metal compound and then treating the resulting reduced solids product with a chlorinated saturated hydrocarbon having two carbon atoms in the presence of a complexing agent. The resulting titanium trichloride complex composition, when employed as a co-catalyst with an organo-metal compound for Ziegler-type catalysts in polymerization of .alpha.-olefins, results in uniform polymer grains with unexpectedly high polymerization activity and high stereoregular polymer yielding ratios.
    Type: Grant
    Filed: February 9, 1979
    Date of Patent: January 8, 1980
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Hiroshi Ueno, Naomi Inaba, Tukuo Makishima, Koh Watanabe, Shozo Wada