Patents by Inventor Junichi Kawashima

Junichi Kawashima 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).

  • Publication number: 20240128705
    Abstract: A gas laser amplifier includes a housing, discharge electrode pairs, and an optical resonator. The housing includes an entrance window that allows entry of a first laser beam from outside and an exit window that allows exit of the first laser beam amplified. Each of the discharge electrode pairs excites a laser gas supplied between discharge electrodes facing each other in the housing. The optical resonator causes a second laser beam to oscillate with a gain of the excited laser gas in a non-incident state where the first laser beam from outside the housing does not enter the housing through the entrance window. In an incident state where the first laser beam enters the housing through the entrance window, the optical resonator suspends the oscillation of the second laser beam.
    Type: Application
    Filed: November 11, 2019
    Publication date: April 18, 2024
    Applicant: Mitsubishi Electric Corporation
    Inventors: Tatsuya YAMAMOTO, Junichi NISHIMAE, Yuzuru TADOKORO, Masashi NARUSE, Takuya KAWASHIMA
  • Publication number: 20240045352
    Abstract: A charging device according to one or more embodiments may include: a charging member that is rotatable and provided to be in contact with a contact member. The charging member includes: a shaft; a surface layer to be in contact with the contact member and containing porous particles; and an elastic layer provided between the shaft and the surface layer. A ratio of convex portions formed by the porous particles on the surface layer to a surface area of the surface layer is 68.4% or more.
    Type: Application
    Filed: July 17, 2023
    Publication date: February 8, 2024
    Applicant: Oki Electric Industry Co., Ltd.
    Inventors: Daiki MORIMOTO, Takaaki EBE, Junichi KAWASHIMA, Kohei JOUGATAKI
  • Patent number: 11180647
    Abstract: The present invention provides a polyvinyl chloride-based rigid molded product containing 10 to 40 parts by weight of calcium carbonate having an average primary particle size of 0.01 to 0.3 ?m per 100 parts by weight of a polyvinyl chloride-based resin having an average polymerization degree of 500 to 1,500, wherein a variation coefficient of the number of calcium carbonate particles in partitioning analysis of a cross section of the molded product is 15% or less, and a method for manufacturing the same.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: November 23, 2021
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Yoshihito Sasada, Toshiki Kawabata, Junichi Kawashima, Osamu Matsumoto
  • Publication number: 20190062543
    Abstract: The present invention provides a polyvinyl chloride-based rigid molded product containing 10 to 40 parts by weight of calcium carbonate having an average primary particle size of 0.01 to 0.3 ?m per 100 parts by weight of a polyvinyl chloride-based resin having an average polymerization degree of 500 to 1,500, wherein a variation coefficient of the number of calcium carbonate particles in partitioning analysis of a cross section of the molded product is 15% or less, and a method for manufacturing the same.
    Type: Application
    Filed: August 22, 2018
    Publication date: February 28, 2019
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventors: Yoshihito Sasada, Toshiki Kawabata, Junichi Kawashima, Osamu Matsumoto
  • Patent number: 9290781
    Abstract: The present invention provides a method for producing a composition containing 2-acyl-lysophosphatidylserine, including (a) a step of obtaining a composition containing phosphatidylserine by allowing phospholipase D to act on a raw material containing phosphatidylcholine in the presence of serine and (b) a step of obtaining a composition containing 2-acyl-lysophosphatidylserine by allowing phospholipase A1 to act on the composition containing phosphatidylserine in the presence of one or more additives selected from the group consisting of the following (I), (II), and (III), in which (I) one or more salts selected from the group consisting of sulfate salts, phosphate salts, nitrate salts, citrate salts, and tartarate salts of monovalent cations, (II) a gum, and (III) an emulsifier.
    Type: Grant
    Filed: September 26, 2011
    Date of Patent: March 22, 2016
    Assignees: National University Corporation Tokyo University of Marine Science and Technology, Meiji Co., Ltd.
    Inventors: Kazunaga Yazawa, Tomoyuki Susa, Shoji Gotoh, Yasuhito Tashiro, Junichi Kawashima, Shigeyuki Imamura
  • Patent number: 8913928
    Abstract: A developing device includes a developer supporting member having an elastic layer and a surface layer covering the elastic layer for supporting developer; and a developer layer regulating member arranged to abut against the surface layer for regulating a layer thickness of the developer on the surface layer. The surface layer contains at least carbon black. The developer supporting member is configured so that the following equation (1) is satisfied when the surface layer has a dynamic friction coefficient ? between 0.4 and 0.9 (0.4???0.9) and a ten-point average roughness Rz (?m) between 2 ?m and 6 ?m (2?Rz?6): 2?C?0.5×Rz+3??(1) where C is a content of the carbon black (weight parts relative to the surface layer of 100).
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: December 16, 2014
    Assignee: OKI Data Corporation
    Inventor: Junichi Kawashima
  • Patent number: 8693928
    Abstract: A development device includes an image carrier configured to develop an electrostatic latent image by using a developer, a development member configured to supply the developer to the image carrier, a developer supply member configured to supply the developer onto a surface of the development member, and a developer restriction member including a contact portion configured to form a developer layer on the surface of the development member while being in contact with the surface. A curvature radius R [mm] of the contact portion of the developer restriction member is 0.17 [mm] to 0.28 [mm], both inclusive, and an ASKER F hardness [°] of the developer supply member is 181.82×R+9.09?F??250×R+130.
    Type: Grant
    Filed: November 17, 2011
    Date of Patent: April 8, 2014
    Assignee: Oki Data Corporation
    Inventor: Junichi Kawashima
  • Publication number: 20130281404
    Abstract: The present invention provides a method for producing a composition containing 2-acyl-lysophosphatidylserine, including (a) a step of obtaining a composition containing phosphatidylserine by allowing phospholipase D to act on a raw material containing phosphatidylcholine in the presence of serine and (b) a step of obtaining a composition containing 2-acyl-lysophosphatidylserine by allowing phospholipase A1 to act on the composition containing phosphatidylserine in the presence of one or more additives selected from the group consisting of the following (I), (II), and (III), in which (I) one or more salts selected from the group consisting of sulfate salts, phosphate salts, nitrate salts, citrate salts, and tartarate salts of monovalent cations, (II) a gum, and (III) an emulsifier.
    Type: Application
    Filed: September 26, 2011
    Publication date: October 24, 2013
    Applicant: MEIJI CO., LTD.
    Inventors: Kazunaga Yazawa, Tomoyuki Susa, Shoji Gotoh, Yasuhito Tashiro, Junichi Kawashima, Shigeyuki Imamura
  • Publication number: 20120134697
    Abstract: A development device includes an image carrier configured to develop an electrostatic latent image by using a developer, a development member configured to supply the developer to the image carrier, a developer supply member configured to supply the developer onto a surface of the development member, and a developer restriction member including a contact portion configured to form a developer layer on the surface of the development member while being in contact with the surface. A curvature radius R [mm] of the contact portion of the developer restriction member is 0.17 [mm] to 0.28 [mm], both inclusive, and an ASKER F hardness [°] of the developer supply member is 181.82×R+9.09?F??250×R+130.
    Type: Application
    Filed: November 17, 2011
    Publication date: May 31, 2012
    Applicant: OKI DATA CORPORATION
    Inventor: Junichi KAWASHIMA
  • Patent number: 8027625
    Abstract: A developer supporting member includes a supporting layer for supporting developer. The supporting layer has a corona discharge resistivity of a specific value. The supporting layer is formed of an elastic layer and a surface layer. The surface layer includes a surface treated with a urethane solution.
    Type: Grant
    Filed: December 16, 2009
    Date of Patent: September 27, 2011
    Assignee: Oki Data Corporation
    Inventor: Junichi Kawashima
  • Publication number: 20100166459
    Abstract: A developer supporting member includes a supporting layer for supporting developer. The supporting layer has a corona discharge resistivity of a specific value. The supporting layer is formed of an elastic layer and a surface layer. The surface layer includes a surface treated with a urethane solution.
    Type: Application
    Filed: December 16, 2009
    Publication date: July 1, 2010
    Inventor: Junichi Kawashima
  • Patent number: 7343738
    Abstract: An engine controller (20) controls regeneration of a diesel particulate filter (11) deployed along an exhaust passage (3) of a vehicle diesel engine (9). Regeneration terminates in response to a terminating request based on running conditions of the diesel engine (1). When the regeneration elapsed time at the time of termination is shorter than a reference duration, the engine controller (20) adds a time corresponding to a deviation of the regeneration elapsed time from the reference duration to the reference duration for the next regeneration of the DPF (11), thereby completely removing particulate matter accumulated in and around an inlet (18) of the filter (11).
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: March 18, 2008
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Naoya Tsutsumoto, Junichi Kawashima, Masahiko Nakano, Makoto Ootake, Shouichirou Ueno, Terunori Kondou, Toshimasa Koga
  • Patent number: 7340886
    Abstract: A diesel engine (1) comprises an exhaust passage (3), and a DPM filter (4) provided on the exhaust passage (3), which traps diesel particulate matter (DPM) contained in the exhaust gas such that the diesel particulate matter accumulates therein. An engine controller (11) starts regeneration processing of the DPM filter (4) by raising the exhaust gas temperature when a regeneration timing of the DPM filter (4) is reached, sets a target exhaust gas temperature during regeneration processing to ensure that the temperature of the DPM filter (4) does not exceed an upper temperature limit of the DPM filter (4), even when the temperature of the DPM filter (4) is raised due to the engine (1) entering an idling condition during the regeneration processing, and controls the exhaust gas temperature to the target exhaust gas temperature.
    Type: Grant
    Filed: September 7, 2004
    Date of Patent: March 11, 2008
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Junichi Kawashima, Naoya Tsutsumoto, Makoto Otake, Terunori Kondou, Takao Inoue, Shouichirou Ueno, Toshimasa Koga
  • Patent number: 7322185
    Abstract: A particulate matter deposit amount accumulated in a diesel particulate filter (4) is calculated as a first particulate matter deposit amount from a pressure loss of the filter (4) (S33). The particulate matter deposit amount accumulated in the filter (4) is calculated as a second particulate matter deposit amount from another parameter (S34). It is determined whether or not there is front end blockage of the filter (4) based on a comparison between the first particulate matter deposit amount and second particulate matter deposit amount (S36, S43). When there is a front end blockage of the filter (4), the regeneration device is controlled to perform regeneration of the filter (4) for a longer period than the normal regeneration period of the filter (4) (S22).
    Type: Grant
    Filed: August 24, 2005
    Date of Patent: January 29, 2008
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Toshimasa Koga, Junichi Kawashima, Makoto Ootake, Masahiko Nakano, Terunori Kondou, Shouichirou Ueno, Naoya Tsutsumoto
  • Patent number: 7322184
    Abstract: A particulate matter deposit amount in a diesel particulate filter (4) provided in an exhaust passage (3) of a diesel engine (1) for a vehicle is estimated on the basis of a pressure loss in the filter (4), which is detected by a differential pressure sensor (12). When the temperature of the differential pressure sensor (12) is not within a predetermined temperature range, estimation of the particulate matter deposit amount based on the pressure loss is restricted, and instead, the particulate matter deposit amount is estimated by accumulating a particulate matter deposit amount per unit time. In so doing, increases in the estimation error outside of the predetermined temperature range are prevented. Moreover, by applying these estimation methods selectively in accordance with the vehicle speed, the precision with which the particulate matter deposit amount is estimated outside of the predetermined temperature range is improved.
    Type: Grant
    Filed: August 5, 2005
    Date of Patent: January 29, 2008
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Terunori Kondou, Junichi Kawashima, Naoya Tsutsumoto, Makoto Ootake, Shouichirou Ueno, Masahiko Nakano, Toshimasa Koga
  • Patent number: 7315766
    Abstract: In component mounting for executing a component feed operation and component holding and pickup operation, a recipe for the component holding and pickup operation that is an operational program for executing the component holding and pickup operation is received in a head unit, and the component holding and pickup operation is executed on the basis of the recipe. In addition, a timing signal based on this execution is transmitted from the head unit to a component feed unit, a recipe for the component feed operation for executing the component feed operation is received in the component feed unit, and the component feed operation is completed on the basis of this recipe and the timing signal transmitted from the head unit.
    Type: Grant
    Filed: February 20, 2004
    Date of Patent: January 1, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Toru Chikuma, Hiroto Miyazaki, Junichi Kawashima, Youichi Tanaka, Noriaki Yoshida
  • Patent number: 7237379
    Abstract: A particulate filter (41) which traps particulate matter in the exhaust gas of a diesel engine (1), regenerates when a controller (31) performs an exhaust gas increase operation which includes decreasing the opening of an intake throttle (42). The controller (31), during regeneration of the filter (41), determines whether or not the required load of the diesel engine (1) is increasing from an accelerator pedal depression sensor (32) or a fuel injection amount (S3), and prevents output decrease of the diesel engine (1) by interrupting the exhaust gas temperature increase operation when the required load is increasing (S5).
    Type: Grant
    Filed: March 11, 2005
    Date of Patent: July 3, 2007
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Masahiko Nakano, Junichi Kawashima, Naoya Tsutsumoto, Makoto Ootake, Terunori Kondo, Shouichirou Ueno, Toshimasa Koga
  • Patent number: 7219493
    Abstract: A regeneration control device which regenerates a filter (13) by increasing an exhaust gas temperature to burn exhaust gas particulates trapped in the filter, is disclosed. The filter (13) traps particulate matter in exhaust gas from an engine (1). The regeneration control device suppresses fuel cost-performance impairment due to filter regeneration. The regeneration control device has a load detection sensor (31) which detects an engine load and a microcomputer-based controller (22).
    Type: Grant
    Filed: September 10, 2004
    Date of Patent: May 22, 2007
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Naoya Tsutsumoto, Junichi Kawashima, Makoto Otake, Terunori Kondou, Takao Inoue, Toshimasa Koga, Shouichirou Ueno
  • Patent number: 7200991
    Abstract: A filter (10) which traps particulate matter contained in the exhaust gas of a diesel engine (20) for a vehicle is regenerated by fuel injection control. A controller (16) calculates a representative value of the operating condition of the diesel engine (20) during a latest predetermined time period, and determines the traveling condition of the vehicle on the basis of this representative value. When the representative value corresponds to a highway traveling condition, fuel injection control is performed in accordance with a pattern for burning all of the particulate matter trapped in the filter (10). Under any other conditions, fuel injection control is performed in accordance with another pattern. Hence optimum filter regeneration can be performed depending on the traveling condition of the vehicle.
    Type: Grant
    Filed: September 7, 2004
    Date of Patent: April 10, 2007
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Makoto Otake, Junichi Kawashima, Naoya Tsutsumoto, Terunori Kondou, Takao Inoue, Shouichirou Ueno, Toshimasa Koga
  • Patent number: 7171802
    Abstract: A filter differential pressure, which is the difference between the inlet pressure and the outlet pressure of a DPM filter (11), is determined, and switching is performed in accordance with the regeneration condition of the DPM filter (11) between a first trapped DPM amount calculation process for estimating the trapped DPM amount after complete regeneration, in which all of the DPM trapped in the DPM filter (11) is burned, and a second trapped DPM amount calculation process for estimating the trapped DPM amount when a part of the DPM trapped in the DPM filter (11) has been burned away. The trapped DPM amount in the DPM filter (11) is estimated on the basis of the filter differential pressure using one of the first and second trapped DPM amount calculation processes.
    Type: Grant
    Filed: September 7, 2004
    Date of Patent: February 6, 2007
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Takao Inoue, Junichi Kawashima, Naoya Tsutsumoto, Makoto Otake, Terunori Kondou, Shouichirou Ueno, Toshimasa Koga