Patents by Inventor Norio Nakagawa

Norio Nakagawa 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: 11001033
    Abstract: A fiber-reinforced composite material has an excellent design surface. The prepreg laminate includes at least prepregs [a] having reinforcing fibers impregnated with a resin, and a base material [b] not impregnated with a resin, wherein at least two of the prepregs [a] are stacked in succession, and both sides of the base material [b] are sandwiched by the prepregs [a].
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: May 11, 2021
    Assignee: Toray Industries, Inc.
    Inventors: Kazuhiro Hatanaka, Norio Nakagawa, Hideki Nudeshima, Hidehiro Takemoto
  • Publication number: 20190248107
    Abstract: A fiber-reinforced composite material has an excellent design surface. The prepreg laminate includes at least prepregs [a] having reinforcing fibers impregnated with a resin, and a base material [b] not impregnated with a resin, wherein at least two of the prepregs [a] are stacked in succession, and both sides of the base material [b] are sandwiched by the prepregs [a].
    Type: Application
    Filed: October 23, 2017
    Publication date: August 15, 2019
    Inventors: Kazuhiro Hatanaka, Norio Nakagawa, Hideki Nudeshima, Hidehiro Takemoto
  • Patent number: 8038298
    Abstract: A liquid crystal projector device of the present invention includes an optical system for receiving light from a lamp unit. The optical system is provided with a polarization beam splitter for extracting only an S wave out of P and S waves of the light emitted from the lamp unit, and also provided with a latter stage slit plate in contact with a light incidence surface of the polarization beam splitter. The latter stage slit plate is provided with a plurality of slits for allowing light incidence on the polarization beam splitter. A former stage slit plate is arranged in a position spaced apart from the latter stage slit plate along the optical axis toward the lamp unit. The former stage slit plate is provided with a plurality of slits overlapping in the optical axis direction with the respective slits of the latter stage slit plate.
    Type: Grant
    Filed: July 18, 2006
    Date of Patent: October 18, 2011
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Norio Nakagawa, Toshihiro Saruwatari
  • Patent number: 7866828
    Abstract: An image display apparatus has a first exhaust fan (13) for mainly exhausting air from a light source unit (9) and discharging the air to the outside of the image display apparatus and a second exhaust fan (14) for mainly exhausting air from a power supply unit (11) and discharging the air to the outside of said image display apparatus. The inspiration face of the second exhaust fan is arranged to partly overlap the expiration face of the first exhaust fan. Accordingly, the internal temperature of the image display apparatus, and hence the temperature of the exhaust air, can be efficiently reduced, and at the same time fan noise of the fans can be reduced. As a result, uprating of power of the light source unit and downsizing of an image display apparatus can be simultaneously achieved.
    Type: Grant
    Filed: October 19, 2007
    Date of Patent: January 11, 2011
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Norio Nakagawa, Atsushi Kubo
  • Patent number: 7845804
    Abstract: A projection type image display apparatus of the invention has a lamp mounting mechanism, which has an aluminum lamp holder (166) intervening between the lamp (16) and the resin lamp holder (167) and has a section exposed out of the resin lamp holder (167). The lamp (16) is securely fixed in position on the aluminum lamp holder (166) by mounting the lamp (16) on the aluminum lamp holder (166) from above and then folding the top section (166d) towards the top end of the lamp (16). This lamp mounting mechanism can suppress the temperature of the resin lamp holder without providing a cooling fan with a large amount of power and suppress fan noise, thereby simultaneously enabling uprating of the power of the lamp and downsizing of the image display apparatus.
    Type: Grant
    Filed: October 19, 2007
    Date of Patent: December 7, 2010
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Norio Nakagawa, Atsushi Kubo
  • Patent number: 7795863
    Abstract: A coil for use in an eddy current sensing probe is formed through depositing film traces. The film traces can be directly deposited. The film traces can be deposited on the outer surface of a core or on ends of the core. The film traces can be deposited onto non-planar surfaces other than cores for the inspection of parts having complex geometries. The coil can be used in a single coil probe or in a probe having a sensor array.
    Type: Grant
    Filed: February 23, 2005
    Date of Patent: September 14, 2010
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: Marcus James Johnson, Norio Nakagawa
  • Patent number: 7621644
    Abstract: A liquid crystal projector device of the present invention includes a casing having disposed therein a lamp unit, an optical system for receiving light from the lamp unit to generate image light, and a power unit. An exhaust system for cooling an inside of the casing is attached to a side surface of the casing. The exhaust system includes a first exhaust fan and a second exhaust fan, which stand along the side surface of the casing. The first exhaust fan is placed toward the lamp unit, while the second exhaust fan is placed toward the power unit. Exhaust directions of both exhaust fans intersect each other.
    Type: Grant
    Filed: July 18, 2006
    Date of Patent: November 24, 2009
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Norio Nakagawa, Toshihiro Saruwatari
  • Patent number: 7621645
    Abstract: A liquid crystal projector device of the present invention includes a lamp unit having a lamp and a reflector, and a cooling fan for cooling the lamp unit. The reflector includes a reflecting portion having a parabolic reflecting surface, and a plurality of side walls extending from the reflecting portion to surround the lamp. A first side wall of the plurality of side walls is provided with a first air intake opening and a second air intake opening for introducing air delivered from the cooling unit toward the lamp, at both sides of a plane including a central axis of the lamp and orthogonal to the first side wall. A wind blocking wall is defined between both air intake openings. An air discharge opening is formed on a second side wall opposed to the first side wall.
    Type: Grant
    Filed: July 26, 2006
    Date of Patent: November 24, 2009
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Norio Nakagawa, Toshihiro Saruwatari, Katsumi Tanaka
  • Patent number: 7528892
    Abstract: A liquid crystal projector device of the present invention includes a lamp unit, an optical system for separating light emitted from the lamp unit into light of three primary colors, and an image synthesizer for generating image light of three primary colors from the light of three primary colors, and synthesizing the generated image light of three primary colors into color image light. The image synthesizer includes three liquid crystal panels for three primary colors and three incidence polarizing plates arranged at light incidence sides of the liquid crystal panels. Each of the incidence polarizing plates includes a glass base material and a polarizing film joined to a surface thereof. The surface area ratio of the glass base material to the polarizing film is set to 178%.
    Type: Grant
    Filed: July 18, 2006
    Date of Patent: May 5, 2009
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Norio Nakagawa, Toshihiro Saruwatari, Katsumi Tanaka
  • Publication number: 20080094580
    Abstract: A projection type image display apparatus of the invention has a lamp mounting mechanism, which has an aluminum lamp holder (166) intervening between the lamp (16) and the resin lamp holder (167) and has a section exposed out of the resin lamp holder (167). The lamp (16) is securely fixed in position on the aluminum lamp holder (166) by mounting the lamp (16) on the aluminum lamp holder (166) from above and then folding the top section (166d) towards the top end of the lamp (16). This lamp mounting mechanism can suppress the temperature of the resin lamp holder without providing a cooling fan with a large amount of power and suppress fan noise, thereby simultaneously enabling uprating of the power of the lamp and downsizing of the image display apparatus.
    Type: Application
    Filed: October 19, 2007
    Publication date: April 24, 2008
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Norio NAKAGAWA, Atsushi KUBO
  • Publication number: 20080094581
    Abstract: An image display apparatus has a first exhaust fan (13) for mainly exhausting air from a light source unit (9) and discharging the air to the outside of the image display apparatus and a second exhaust fan (14) for mainly exhausting air from a power supply unit (11) and discharging the air to the outside of said image display apparatus. The inspiration face of the second exhaust fan is arranged to partly overlap the expiration face of the first exhaust fan. Accordingly, the internal temperature of the image display apparatus, and hence the temperature of the exhaust air, can be efficiently reduced, and at the same time fan noise of the fans can be reduced. As a result, uprating of power of the light source unit and downsizing of an image display apparatus can be simultaneously achieved.
    Type: Application
    Filed: October 19, 2007
    Publication date: April 24, 2008
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Norio NAKAGAWA, Atsushi KUBO
  • Publication number: 20080094582
    Abstract: A projection type image display apparatus of the invention is equipped with a lamp cooling mechanism, which has a duct (121) for guiding the air sent from an air intake fan (12) in the forward direction from a position lateral to a lamp (16). The duct (121) has a curved wall (122) for directing the air in the duct (121) to the air intake port (164) formed near the open end of the lamp (16). The lamp cooling mechanism has a further guide plate (123) for spreading the air stream directed by the curved section (122) over the region from the tip (161b) to the luminous section (161a) of the lamp (16). As a consequence, relevant sections of the lamp (16) can be efficiently cooled, thereby simultaneously enabling uprating of power of the light source unit and downsizing and lightening of the image display apparatus without supplying the fan (12) with a large amount of power.
    Type: Application
    Filed: October 19, 2007
    Publication date: April 24, 2008
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Norio NAKAGAWA, Atsushi KUBO
  • Publication number: 20070024817
    Abstract: A liquid crystal projector device of the present invention includes a lamp unit having a lamp and a reflector, and a cooling fan for cooling the lamp unit. The reflector includes a reflecting portion having a parabolic reflecting surface, and a plurality of side walls extending from the reflecting portion to surround the lamp. A first side wall of the plurality of side walls is provided with a first air intake opening and a second air intake opening for introducing air delivered from the cooling unit toward the lamp, at both sides of a plane including a central axis of the lamp and orthogonal to the first side wall. A wind blocking wall is defined between both air intake openings. An air discharge opening is formed on a second side wall opposed to the first side wall.
    Type: Application
    Filed: July 26, 2006
    Publication date: February 1, 2007
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Norio Nakagawa, Toshihiro Saruwatari, Katsumi Tanaka
  • Publication number: 20070019164
    Abstract: A liquid crystal projector device of the present invention includes an optical system for receiving light from a lamp unit. The optical system is provided with a polarization beam splitter for extracting only an S wave out of P and S waves of the light emitted from the lamp unit, and also provided with a latter stage slit plate in contact with a light incidence surface of the polarization beam splitter. The latter stage slit plate is provided with a plurality of slits for allowing light incidence on the polarization beam splitter. A former stage slit plate is arranged in a position spaced apart from the latter stage slit plate along the optical axis toward the lamp unit. The former stage slit plate is provided with a plurality of slits overlapping in the optical axis direction with the respective slits of the latter stage slit plate.
    Type: Application
    Filed: July 18, 2006
    Publication date: January 25, 2007
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Norio Nakagawa, Toshihiro Saruwatari
  • Publication number: 20070019168
    Abstract: A liquid crystal projector device of the present invention includes a casing having disposed therein a lamp unit, an optical system for receiving light from the lamp unit to generate image light, and a power unit. An exhaust system for cooling an inside of the casing is attached to a side surface of the casing. The exhaust system includes a first exhaust fan and a second exhaust fan, which stand along the side surface of the casing. The first exhaust fan is placed toward the lamp unit, while the second exhaust fan is placed toward the power unit. Exhaust directions of both exhaust fans intersect each other.
    Type: Application
    Filed: July 18, 2006
    Publication date: January 25, 2007
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Norio Nakagawa, Toshihiro Saruwatari
  • Publication number: 20070019118
    Abstract: A liquid crystal projector device of the present invention includes a lamp unit, an optical system for separating light emitted from the lamp unit into light of three primary colors, and an image synthesizer for generating image light of three primary colors from the light of three primary colors, and synthesizing the generated image light of three primary colors into color image light. The image synthesizer includes three liquid crystal panels for three primary colors and three incidence polarizing plates arranged at light incidence sides of the liquid crystal panels. Each of the incidence polarizing plates includes a glass base material and a polarizing film joined to a surface thereof. The surface area ratio of the glass base material to the polarizing film is set to 178%.
    Type: Application
    Filed: July 18, 2006
    Publication date: January 25, 2007
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Norio Nakagawa, Toshihiro Saruwatari, Katsumi Tanaka
  • Patent number: 7162616
    Abstract: An FPU pipeline is synchronized with a CPU pipeline. Synchronization is achieved by having stalls and freezes in any one pipeline cause stalls and freezes in the other pipeline as well. Exceptions are kept precise even for long floating point operations. Precise exceptions are achieved by having a first execution stage of the FPU pipeline generate a busy signal, when a first floating point instruction enters a first execution stage of the FPU pipeline. When a second floating point instruction is decoded by the FPU pipeline before the first floating point instruction has finished executing in the first stage of the FPU pipeline, then both pipelines are stalled.
    Type: Grant
    Filed: March 8, 2004
    Date of Patent: January 9, 2007
    Assignee: Renesas Technology America, Inc.
    Inventors: Prasenjit Biswas, Gautam Dewan, Kevin Iadonato, Norio Nakagawa, Kunio Uchiyama
  • Patent number: 6944686
    Abstract: A DMA controller including a request queue for holding DMA transfer requests clears only the request queue without executing unnecessary DMA transfers and provides information about the states of the queue. A DMA controller is configured to enable data transfer control with respect to plural channels and includes a request queue capable of holding the identification information of channels concerned in plural data transfer requests, wherein the states of the request queue can be outputted and information held in the request queue can be cleared.
    Type: Grant
    Filed: September 26, 2002
    Date of Patent: September 13, 2005
    Assignees: Renesas Technology Corp., Hitachi ULSI Systems Co., Ltd.
    Inventors: Takanobu Naruse, Shinichi Yoshioka, Norio Nakagawa
  • Publication number: 20050184729
    Abstract: A coil for use in an eddy current sensing probe is formed through depositing film traces. The film traces can be directly deposited. The film traces can be deposited on the outer surface of a core or on ends of the core. The film traces can be deposited onto non-planar surfaces other than cores for the inspection of parts having complex geometries. The coil can be used in a single coil probe or in a probe having a sensor array.
    Type: Application
    Filed: February 23, 2005
    Publication date: August 25, 2005
    Applicant: IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC.
    Inventors: Marcus Johnson, Norio Nakagawa
  • Publication number: 20040191991
    Abstract: An operational margin of a memory of a semiconductor integrated circuit device including an SRAM is improved. In order to set the Vth of driving MISFETs Qd, transfer MISFETs Qt and MISFETs for load resistance QL forming memory cells of an SRAM, relatively and intentionally higher than the Vth of predetermined MISFETs of SRAM peripheral circuits and logic circuits such as microprocessor, an impurity introduction step is introduced to set the Vth of the driving MISFETs Qd, transfer MISFETs Qt and MISFETs for load resistance, separately from an impurity introduction step for setting the Vth of the predetermined MISFETs.
    Type: Application
    Filed: April 8, 2004
    Publication date: September 30, 2004
    Inventors: Shuji Ikeda, Yasuko Yoshida, Masayuki Kojima, Kenji Shiozawa, Mitsuyuki Kimura, Norio Nakagawa, Koichiro Ishibashi, Yasuhisa Shimazaki, Kenichi Osada, Kunio Uchiyama