Patents by Inventor Hideo Hamada

Hideo Hamada 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: 5234734
    Abstract: This invention provides a transfer sheet comprising a release sheet, a sticker layer disposed on the releasable side of the release sheet, a main transfer layer superposed on the sticker layer, the sticker layer consisting of a non-adhesive resin layer in the form of a grating and an adhesive resin layer disposed in interstices of the grating.
    Type: Grant
    Filed: October 2, 1991
    Date of Patent: August 10, 1993
    Inventor: Hideo Hamada
  • Patent number: 5200268
    Abstract: The invention relates to a transfer sheet comprising a release sheet, a stick-adhesive layer disposed on the releasable side of the release sheet and formed from the stick-adhesive composition comprising a sticking resin and a moisture-curing resin in a weight ratio of 90:10 through 20:80 based on the nonvolatile matter thereof, a main transfer layer disposed on the stick-adhesive layer, and a moisture-proofing means disposed on the main transfer layer and adapted to maintain the stick-adhesive layer in moisture-free condition.
    Type: Grant
    Filed: April 1, 1991
    Date of Patent: April 6, 1993
    Inventor: Hideo Hamada
  • Patent number: 4577737
    Abstract: A torque transmission through the hydrodynamic drive is directly measured by a torque sensor and a desired torque transmission is obtained for operating condition of a prime mover. The clutch slip of a lock-up clutch is adjusted toward a value where the measured torque transmission agrees with the desired torque transmission.
    Type: Grant
    Filed: August 1, 1983
    Date of Patent: March 25, 1986
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Yasuhiro Niikura, Yoshiro Morimoto, Hideo Hamada, Masaaki Suga, Takashi Murasugi
  • Patent number: 4573375
    Abstract: In an automatic transmission for an automotive vehicle, an operating area covered by a high gear ratio is extended toward low vehicle speed side and the high gear ratio is released in response to the opening degree of the throttle and vehicle speed. The high gear ratio is released when the vehicle speed value is lower than a predetermined vehicle speed value and the opening degree of the throttle is larger than a predetermined opening degree.
    Type: Grant
    Filed: January 31, 1983
    Date of Patent: March 4, 1986
    Assignee: Nissan Motor Company, Limited
    Inventors: Hideo Hamada, Yoshiro Morimoto, Masaaki Suga, Takashi Murasugi, Tadashi Suzuki
  • Patent number: 4539869
    Abstract: A lock-up control system for a lock-up type automatic transmission of an automotive vehicle.The lock-up control system functions to temporally release lock-up operation of a torque converter of the transmission upon occurrence of a gear shift signal even if the automotive vehicle is operating within any one of lock-up ranges. Gear shifting detector means generates a gear shift signal having a time duration which is variable corresponding to the time duration of a corresponding gear shifting operation. The duration of the gear shift signal generated by the gear shifting signal may also be variable also with the magnitude of engine load.
    Type: Grant
    Filed: July 6, 1981
    Date of Patent: September 10, 1985
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Masaaki Suga, Yoshiro Morimoto, Hideo Hamada, Masaaki Futagi, Tadashi Suzuki
  • Patent number: 4539643
    Abstract: A fuel cut-off control can prolong a period of time in which the engine speed is maintained at a range suitable for performing fuel cut-off and shorten a period of time in which the engine speed is in a fuel recovery range to minimize fuel consumption during engine deceleration. In a fuel cut-off control system in a fuel injection internal combustion engine with an automatic transmission, the fuel cut-off control system is responsive to a brake switch signal and an engine speed signal having a value above a fuel recovery threshold to decrease the value of a fuel cut-off threshold to again perform the fuel cut-off even in the normal fuel recovery range. Down shifting of a transmission gear is performed to increase engine speed to a level beyond the fuel cut-off threshold to prolong the fuel cut-off period.
    Type: Grant
    Filed: September 21, 1982
    Date of Patent: September 3, 1985
    Assignee: Nissan Motor Company, Limited
    Inventors: Tadashi Suzuki, Yoshiro Morimoto, Hideo Hamada, Masaaki Suga, Takashi Murasugi
  • Patent number: 4509124
    Abstract: A lock-up control system is disclosed wherein the lock-up state of a torque converter is temporally released during gear shifting operation in an automatic transmission even if an automotive vehicle is operating in a predetermined lock-up range. A sensor generates an oil temperature compensation signal indicative of the temperature of oil used in the automatic transmission. The time duration of temporary release of the lock-up state is variable with variation in the oil temperature compensation signal.
    Type: Grant
    Filed: March 29, 1982
    Date of Patent: April 2, 1985
    Assignee: Nissan Motor Company, Limited
    Inventors: Tadashi Suzuki, Yoshiro Morimoto, Hideo Hamada, Masaaki Suga, Takashi Murasugi
  • Patent number: 4503956
    Abstract: A lock-up control device in which a pulse train is generated which has a duration which increases as the vehicle speed decreases. A counter generates a period indicative signal indicative of a current period of the pulse train. A memory stores the period indicative signal for a preceding period. An adder generates an adder signal indicative of the addition of a preset value to the period indicative signal stored in the memory. A comparator compares the adder signal with the period indicative signal generated by the counter and generates a comparator signal when the former is larger than the latter. A flip-flop generates a flip-flop signal when the comparator signal occurs under the presence of a lock-up signal. An AND gate provides a lock-up release signal when said flip-flop signal occurs irrespective of the presence of the lock-up signal.
    Type: Grant
    Filed: September 20, 1982
    Date of Patent: March 12, 1985
    Assignee: Nissan Motor Company, Limited
    Inventors: Tadashi Suzuki, Yoshiro Morimoto, Hideo Hamada, Masaaki Suga, Takashi Murasugi
  • Patent number: 4499979
    Abstract: The lock-up control system stores lock-up speed values for each gear position of the transmission. These values are compared against actual vehicle speed to control lock-up of the transmission. In the system, a counter receives clock pulses from a clock and sensor pulses from a vehicle speed sensor. The sensor pulses have a frequency indicative of information related to vehicle speed. The counter counts sensor pulses within a time interval between two adjacent clock pulses. This count is therefore indicative of vehicle speed.
    Type: Grant
    Filed: October 5, 1981
    Date of Patent: February 19, 1985
    Assignee: Nissan Motor Company, Limited
    Inventors: Tadashi Suzuki, Yoshiro Morimoto, Hideo Hamada, Masaaki Suga, Masaaki Futagi
  • Patent number: 4473882
    Abstract: An automatic transmission is changed from the highest gear ratio to the next lower gear ratio upon depressing the brake pedal after the accelerator has been released to cause the automotive vehicle to begin a coasting operation as long as the engine speed is higher than a predetermined engine speed. As a result the engine speed increases, resulting in an increase in the time period when the engine speed remains above the predetermined engine speed to enhance the time period of the operation of fuel cut means, thereby improving fuel economy.
    Type: Grant
    Filed: August 10, 1981
    Date of Patent: September 25, 1984
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Tadashi Suzuki, Yoshiro Morimoto, Hideo Hamada, Masaaki Suga, Masaaki Futagi
  • Patent number: 4471438
    Abstract: A lock-up control system for a lock-up type automatic transmission.A load detection circuit generates a reference acceleration signal that indicates a reference acceleration, and an actual acceleration signal that indicates an actual acceleration of an automotive vehicle. The circuit compares the actual acceleration signal with the reference acceleration signal for generating a first command signal when the actual acceleration signal is greater than the reference acceleration signal and generating a second command signal when the actual acceleration signal is smaller than the reference acceleration signal. The first command signal is fed to a first vehicle speed comparator means to render it operative. The second command signal is fed to a second vehicle comparator means to render same operative.
    Type: Grant
    Filed: May 22, 1981
    Date of Patent: September 11, 1984
    Assignee: Nissan Motor Company, Limited
    Inventors: Masaaki Futagi, Masaaki Suga, Hideo Hamada, Tadashi Suzuki, Yoshiro Morimoto
  • Patent number: 4467673
    Abstract: A control system for an engine of an automotive vehicle equipped with a lock-up type automatic transmission.The engine control system comprises a gear ratio determinating circuit and a vehicle speed detector for determining whether the automotive vehicle is operating in a predetermined lock-up range or not and a logic circuit for generating a lock-up signal that indicates that the automotive vehicle is operating within said predetermined lock-up range, whereupon exhaust gas recirculation and ignition timing are varied from their ordinary patterns to a pattern suitable for operation of the engine with the torque converter operating in a lock-up state.
    Type: Grant
    Filed: May 29, 1981
    Date of Patent: August 28, 1984
    Assignee: Nissan Motor Company, Limited
    Inventors: Hideo Hamada, Yoshiro Morimoto, Masaaki Suga, Masaaki Futagi, Tadashi Suzuki
  • Patent number: 4457410
    Abstract: The lock-up control system functions to temporally release lock-up operation of a torque converter of the transmission upon occurrence of a gear shift signal even if the automotive vehicle is operating within lock-up range. A plurality of gear shifting detectors are provided, each generating a gear shift signal when triggered. Gate means function to select one of said plurality of gear shifting detectors in response to engine load for allowing transmission of a gear shifting command to a selected gear shifting detector. Delay means are provided to retard transmission of the gear shifting command to the plurality of gear shifting detectors in such a manner that a delay between the occurrence of the gear shifting command and the occurrence of the gear shift signal increases as the engine load decreases.
    Type: Grant
    Filed: June 8, 1981
    Date of Patent: July 3, 1984
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Masaaki Suga, Yoshiro Morimoto, Hideo Hamada, Masaaki Futagi, Tadashi Suzuki
  • Patent number: 4449618
    Abstract: A look-up control system for a lock-up type automatic transmission wherein a torque converter locks up in a pattern when the engine temperature is higher than a predetermined temperature value, but is prevented from locking up in the pattern when the engine temperature is lower than the predetermined temperature value. During engine operation when the engine temperature is lower than the predetermined temperature value, the torque converter is allowed to lock up in a second pattern or prevented from locking up.
    Type: Grant
    Filed: March 26, 1981
    Date of Patent: May 22, 1984
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Masaaki Suga, Yoshiro Morimoto, Hideo Hamada
  • Patent number: 4422353
    Abstract: The control system controls a lock-up type automatic transmission such that the forced lock-up of a lock-up torque converter is released only after a predetermined condition after the supply of fuel to the engine has been resumed by a fuel supplying means.
    Type: Grant
    Filed: October 5, 1981
    Date of Patent: December 27, 1983
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Masaaki Suga, Yoshiro Morimoto, Hideo Hamada, Masaaki Futagi, Tadashi Suzuki
  • Patent number: 4386521
    Abstract: An indicator system includes an indicator mounted near a driver's seat and arranged to be responsive to a lock-up permission signal which is to appear when the vehicle is operating within a lock-up range.
    Type: Grant
    Filed: August 10, 1981
    Date of Patent: June 7, 1983
    Assignee: Nissan Motor Company, Limited
    Inventors: Hideo Hamada, Yoshiro Morimoto, Masaaki Suga, Masaaki Futagi, Tadashi Suzuki
  • Patent number: 4365526
    Abstract: For an automatic transmission having a line pressure control circuit producing a line pressure corresponding to engine load and an engine brake selecting circuit applying engine brake in response to car brake signal, an apparatus for controlling the line pressure is disclosed for raising the line pressure in response to engine brake instruction signal from the engine brake selecting circuit. The apparatus may include a circuit for reducing the line pressure to a minimum value necessary for torque transmission after a preset time from the aforesaid raising.
    Type: Grant
    Filed: May 20, 1980
    Date of Patent: December 28, 1982
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Masaaki Suga, Hideo Hamada
  • Patent number: 4350234
    Abstract: An electronically or hydraulically controlled automatic transmission system comprises three means for detecting the release of an accelerator pedal, for detecting the depression of a brake pedal and for detecting an excess of acceleration over a predetermined amount, and only in response to the simultaneous detections in all of those means, which are caused in running down a slope, an automatic engine braking can be effected by the electronically controlled down-shift of the speed range of the vehicle, and further on account of an appropriate delay of the detection of the released accelerator pedal, an unnecessary engine braking can be prevented in the ordinary running which is accompanied by frequent slight variations in acceleration on a flat road or a gradual up or down slope.
    Type: Grant
    Filed: January 30, 1980
    Date of Patent: September 21, 1982
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Masaaki Suga, Hideo Hamada
  • Patent number: 4311062
    Abstract: A countershaft gear transmission is disclosed wherein a plurality of main gears including a first main gear and a second main gear rotatably mounted to a main or output shaft, a countershaft drivingly connected to an input shaft has counter gears in constant engagement with the plurality of main gears and wherein when a low gear ratio is established the first main gear transfers power from the countershaft to the main shaft and when a high gear ratio is established the second main gear transfers power. The first main gear is formed on an outer race of a one-way clutch whose inner race is free to rotate on the main shaft. A synchronizer is coupled with the main shaft for coupling the inner race of the one-way clutch with the main shaft in all of the forward gear ratios. A disc clutch is coupled with the main shaft for coupling said second main gear with said main shaft in the high gear ratio.
    Type: Grant
    Filed: June 4, 1979
    Date of Patent: January 19, 1982
    Assignee: Nissan Motor Company, Ltd.
    Inventors: Hideo Hamada, Masaaki Suga
  • Patent number: 4194608
    Abstract: A countershaft-type automatic power transmission in which a countershaft gear assembly is operated by a hydraulic control system controlled by electric control means responsive to various operational variables of a vehicle and in which a clutch assembly is operated between the coupled and uncoupled conditions by clutch control valve means which is also controlled by the electric control means, the power transmission further featuring throttle valve control means adapted to move the carburetor throttle valve to a position to produce an idling condition in the engine independently of the accelerator pedal when the clutch assembly is in the uncoupled condition.
    Type: Grant
    Filed: April 18, 1977
    Date of Patent: March 25, 1980
    Assignee: Nissan Motor Company, Limited
    Inventors: Keizaburo Usui, Isao Hayama, Hideo Hamada, Sigeaki Yamamuro