Patents by Inventor Yasuhiko Nakano

Yasuhiko Nakano 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: 5717393
    Abstract: The present invention provides a plurality of code tables such as a high-usage code table and a low-usage code table in an entropy coding unit, and transforms a block-sorted last character string from a block-sorting transforming unit into an MTF code string in an MTF transforming unit. The entropy coding unit switches the code tables at a discontinuous part of the MTF code string to perform entropy coding. In addition, the present invention stores reference lists, whose number is equal to the number of kinds of used characters, in a reference list memory. The MTF transforming unit selects a reference list corresponding to a first character of the block-sorted character string to perform an MTF transformation.
    Type: Grant
    Filed: July 19, 1996
    Date of Patent: February 10, 1998
    Assignee: Fujitsu Limited
    Inventors: Yasuhiko Nakano, Kimitaka Murashita, Yoshiyuki Okada, Shigeru Yoshida, Masanaga Tokuyo
  • Patent number: 5701851
    Abstract: In a spark-ignition two-cycle engine, the inlet end of a cylinder cooling water passage is connected to the discharge port of a cooling water pump by a cooling water pipe. The inlet end of a cylinder head cooling water passage is connected to the discharge port of a cooling water pump by a cooling water pipe. The outlet end of the cylinder cooling water passage is connected through a thermostat to the upper end of a cylinder cooling radiator, and the outlet end of the cylinder head cooling water passage is connected through a three-way valve to the upper end of a cylinder head cooling radiator and a pipe fitting. Upon the increase of the temperature of the cooling water for cooling the cylinder head to a predetermined temperature, a CPU provides a control signal to a servomotor to close a port of the three-way valve connected to the pipe fitting and to open a port of the three-way valve connected to the cylinder head cooling radiator.
    Type: Grant
    Filed: November 13, 1996
    Date of Patent: December 30, 1997
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Yasuhiko Nakano, Yoichi Ishibashi
  • Patent number: 5673042
    Abstract: The present invention relates to a method of and an apparatus for compressing/decompressing data, to improve the compression ratio of sliding-dictionary-type Ziv-Lempel codes. A sliding-dictionary-type data compression method finds a matching character string in a coding character string and in a coded character string stored in a dictionary 101. According to the length of the matching character string, the method chooses a raw data mode that codes the matching character string that must consist of a single character as it is, or a reproduction mode that codes the position and length in the dictionary 101 of the matching character string. The method allocates consecutive numbers to different codes to be prepared under the raw data mode and reproduction mode.
    Type: Grant
    Filed: March 16, 1995
    Date of Patent: September 30, 1997
    Assignee: Fujitsu Limited
    Inventors: Shigeru Yoshida, Yoshiyuki Okada, Yasuhiko Nakano, Hironori Yahagi
  • Patent number: 5254990
    Abstract: In a data compressing and decompressing apparatus, having improved efficiency and enhanced compression ratio whereby character sequence of received data is coded and decoded by referring to a dictionary related to the last character of the immediately preceding character sequence, and a character sequence which is one character extended character sequence of the coded and decompressed character sequence is registered in the dictionary in relation with the last character of the immediately preceding character sequence so that the compression ratio of the coding of data is increased.
    Type: Grant
    Filed: January 11, 1993
    Date of Patent: October 19, 1993
    Assignee: Fujitsu Limited
    Inventors: Shigeru Yoshida, Yasuhiko Nakano, Yoshiyuki Okada, Hirotaka Chiba
  • Patent number: 5220620
    Abstract: A color image data processing apparatus processes hue information of picture elements read out sequentially. A chromatic color detection unit is provided for detecting a chromatic color picture element series in a main scanning line having a consecutive succession of chromatic color picture elements including edge picture elements. A replacing unit is provided for replacing the hue value of each picture element of the chromatic color picture element series with a median hue value, the hue value of a picture element located approximately at the center position of the detected chromatic color picture element series. The apparatus may further have an averaged hue value switching unit for switching the hue value of each of the picture elements with an average of the hue value of the picture elements and of other picture elements located in a nearby region.
    Type: Grant
    Filed: May 26, 1992
    Date of Patent: June 15, 1993
    Assignee: Fujitsu Limited
    Inventors: Yasuhiko Nakano, Shigeru Yoshida
  • Patent number: 5177622
    Abstract: A halftone image data compression apparatus includes a first part for detecting a continuous state of pattern data of two successive pixels on a line of a halftone image for N adjacent lines of the halftone image. A second part is coupled to the first part for detecting a run length of the continuous state detected in the first part along a direction of the lines, and a third part is coupled to the first and second parts for subjecting to a universal coding a time-sequential data which is in predetermined processing units. Each predetermined processing unit is made up of one run length which is detected by the second part and corresponding pattern data which are received from the first part while the continuous state is detected for the one run length.
    Type: Grant
    Filed: July 27, 1990
    Date of Patent: January 5, 1993
    Assignee: Fujitsu Limited
    Inventors: Shigeru Yoshida, Yasuhiko Nakano
  • Patent number: 5150119
    Abstract: In a data compression method based on an LZW coding procedure, a list which defines a sequence of tracing partial strings registered in a dictionary is modified so that a position of a first registered partial string among the registered partial strings in a tree structure of registered partial strings is interchanged with a position of a second registered partial string among the registered partial strings in a state where the first and second registered partial strings extend from an identical node of the tree structure.
    Type: Grant
    Filed: August 13, 1991
    Date of Patent: September 22, 1992
    Assignee: Fujitsu Limited
    Inventors: Shigeru Yoshida, Yoshiyuki Okada, Yasuhiko Nakano, Hirotaka Chiba
  • Patent number: 5138673
    Abstract: A data compression system is provided having a fixed length coding unit provided before a universal coding unit. The fixed length coding unit detects mode classifications and mode conditions of changing picture elements in a mode detecting unit. Then, the mode classifications and mode conditions are converted to fixed length code words in a code transforming unit representative of, e.g., MH, MR or MMR-type codes. Thereafter, the fixed length code words are predictively coded by the universal coding unit to output compressed data. The present invention is applicable to both character data and picture data. Preferably, the picture data is preprocessed by the fixed length coding unit before both of the character data and picture data are predictively coded by the universal coding unit.
    Type: Grant
    Filed: August 9, 1990
    Date of Patent: August 11, 1992
    Assignee: Fujitsu Limited
    Inventors: Shigeru Yoshida, Yasuhiko Nakano, Yoshiyuki Okada, Hirotaka Chiba, Masahiro Mori
  • Patent number: 5136289
    Abstract: A dictionary searching system retrieves a character string which is described by input reference number and characters from a plurality of mutually different character strings which are registered in a dictionary in correspondence with reference numbers assigned to the character strings.
    Type: Grant
    Filed: August 6, 1991
    Date of Patent: August 4, 1992
    Assignee: Fujitsu Limited
    Inventors: Shigeru Yoshida, Yasuhiko Nakano, Yoshiyuki Okada, Hirotaka Chiba
  • Patent number: 5107950
    Abstract: A motorcycle has a frame assembly including a main frame supporting front and rear wheels on a central line thereof a connecting member is mounted on the main frame between the front and rear wheels, and a subframe is mounted on the connecting member and being capable of banking laterally about the connecting member. At least one of the front and rear wheels is a drive wheel. At least the drive wheel is capable of preventing the main frame from banking laterally. Centrifugal forces generated upon cornering are counterbalanced by centripetal forces produced when only the subframe banks laterally. The drive wheel supported on the main frame which does not bank has an increased road gripping force. Thus, high-speed cornering is made possible.
    Type: Grant
    Filed: January 31, 1991
    Date of Patent: April 28, 1992
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Satoru Horiike, Yasuhiko Nakano, Shigetarou Okano, Shigeru Kimura, Masanobu Matsuzaki, Toshiteru Yamamoto, Kenji Ooki, Eiji Hamano, Mikio Kubo
  • Patent number: 5087299
    Abstract: A vibration-proof tungsten wire which forms, in cases where the diameter of the wire is D mm and when an electric current corresponding to 90% of the fusion current value is passed therethrough for 5 minutes, a wire havinga crystal grain boundary at which bubbles of 0.3 .mu.m or less in diameter are dispersed in bubble rows with lengths of (0.39/D).sup.2 .times.3 .mu.m or more arrayed in the wire axis direction of said crystal grain boundary, and bubbles of 0.2 .mu.m or less in diameter are randomly dispersed; anda crystal grain in which bubbles of 0.3 .mu.m or less in diameter are dispersed in rows with lengths of (0.39/D).sup.2 .times.30 .mu.m or more arrayed in the wire axis direction within said crystal grain, and bubbles of 0.2 .mu.m or less are randomly dispersed;a process for preparing the same; and a tungsten filament obtained from the above-defined wire. The doped tungsten wire of this invention possesses excellent vibration-proof property on lighting as well as high reliability.
    Type: Grant
    Filed: July 25, 1990
    Date of Patent: February 11, 1992
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Material Engineering Corporation
    Inventors: Mikiharu Fukuchi, Yasuhiko Nakano, Keisuke Hayashi, Isamu Koseki, Masami Ito, Ryozo Akiyama
  • Patent number: 5076388
    Abstract: A motorcycle has a frame assembly including a main frame supporting front and rear wheels on a central line thereof. A connecting member is mounted on the main frame between the front and rear wheels, and a subframe is mounted on the connecting member and is capable of banking laterally about the connecting member. At least one of the front and rear wheels is a drive wheel. At least the drive wheel is capable of preventing the main frame from banking laterally. Centrifugal forces generated upon cornering are counterbalanced by centripetal forces produced when only the subframe banks laterally. The drive wheel supported on the main frame which does not bank has an increased road gripping force. Thus, high-speed cornering is made possible.
    Type: Grant
    Filed: November 27, 1990
    Date of Patent: December 31, 1991
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Satoru Horiike, Yasuhiko Nakano, Shigetarou Okano, Shigeru Kimura, Masanobu Matsuzaki, Toshiteru Yamamoto, Kenji Ooki, Eiji Hamano, Mikio Kubo
  • Patent number: 5068304
    Abstract: A moisture-curable resin composition containing a hydrolyzable silyl group-containing polyether compound as a curable component, said polyether compound comprising polyoxyalkylene chains derived from a polyoxyalkylene polyol having a hydroxyl value (x mgKOH/g) of from 5 to 35, a total degree of unsaturation (y meq/g) of not higher than 0.07 meq/g and y.ltoreq.0.9/(x-10), from 2 to 8 hydroxyl groups, and a content of oxyalkylene groups having at least 3 carbon atoms, of at least 60% by weight, and a hydrolyzable silyl group-containing terminal group present at least 1.3 terminals on the average of said polyoxyalkylene chains, said terminal group having a urethane bond linked to the polyoxyalkylene chain.
    Type: Grant
    Filed: December 6, 1989
    Date of Patent: November 26, 1991
    Assignee: Asahi Glass Company, Ltd.
    Inventors: Toshihiko Higuchi, Yasuhiko Nakano, Nobuaki Kunii, Yoshiyuki Yamaguchi, Shigeyuki Kozawa
  • Patent number: 5042608
    Abstract: A front-wheel-drive motorcycle includes a main frame supporting a rear wheel with a rounded tread tire mounted thereon and also supporting a saddle seat, and a front frame supporting a front drive wheel with a flat tread tire mounted thereon. The main frame is coupled to the front frame by a joint shaft extending in a longitudinal direction and is angularly movable about the joint shaft.
    Type: Grant
    Filed: September 5, 1989
    Date of Patent: August 27, 1991
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Satoru Horiike, Yasuhiko Nakano
  • Patent number: 5014807
    Abstract: A motorcycle has a frame assembly including a main frame supporting front and rear wheels on a central line thereof. A connecting member is mounted on the main frame between the front and rear wheels, and a subframe is mounted on the connecting member and is capable of banking laterally about the connecting member. At least one of the front and rear wheels is a drive wheel. At least the drive wheel is capable of preventing the main frame from banking laterally. Centrifugal forces generated upon cornering are counterbalanced by centripetal forces produced when only the subframe banks laterally. The drive wheel supported on the main frame which does not bank has an increased road gripping force. Thus, high-speed cornering is possible.
    Type: Grant
    Filed: November 2, 1989
    Date of Patent: May 14, 1991
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Satoru Horiike, Yasuhiko Nakano, Shigetarou Okano, Shigeru Kimura, Masanobu Matsuzaki, Toshiteru Yamamoto, Kenji Ooki, Eiji Hamano, Mikio Kubo
  • Patent number: 4964381
    Abstract: A fuel injection type two-cycle engine for motorcycles. A fuel injection valve for injecting fuel into an air intake passageway at a predetermined timing is disposed on the upstream side of a reed valve in the air intake passageway communicating with an interior of the engine via the reed valve, with the injection port thereof directed towards the reed valve. An air intake pipe forming the air intake passageway extends nearly in the vertical direction from the upper surface of a crank case at an middle position between a crank shaft extending in the widthwise direction of the vehicle body and a transmission shaft separated from the crank shaft in the back and forth direction and extending in the widthwise direction of the vehicle body, and a fuel injection valve protrudes from this air intake pipe in the back and forth direction.
    Type: Grant
    Filed: July 27, 1989
    Date of Patent: October 23, 1990
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Tomoo Shiozaki, Yoshiyuki Kawaguchi, Yasuhiko Nakano, Yusuke Gotoda, Hiroo Takemura
  • Patent number: 4917209
    Abstract: A motorcycle has a frame assembly including a main frame supporting front and rear wheels on a central line thereof. A connecting means mounted on the main frame between the front and rear wheels, and a subframe is mounted on the connecting member and being capable of banking laterally about the connecting member. At least one of the front and rear wheels is a drive wheel. At least the drive wheel is capable of preventing the main frame from banking laterally. Centrifugal forces generated upon cornering are counterbalanced by centripetal forces produced when only the subframe banks laterally. The drive wheel supported on the main frame which does not bank has an increased road gripping force. Thus, high-speed cornering is made possible.
    Type: Grant
    Filed: July 15, 1988
    Date of Patent: April 17, 1990
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Satoru Horiike, Yasuhiko Nakano, Shigetarou Okano, Shigeru Kimura, Masanobu Matsuzaki, Toshiteru Yamamoto, Kenji Ooki, Eiji Hamano, Mikio Kubo
  • Patent number: 4903790
    Abstract: A motorcycle exhibiting improved cornering clearance has its front and rear wheels mounted to a fixed frame portion via front and rear suspensions. A moveable frame portion including the motorcycle seat is moveably mounted to the fixed frame portion and moves under control of the rider further inside a corner during cornering in order to shift the effective center of gravity of the motorcycle further inside the corner and thus further increase the lean angle of the entire motorcycle. Movement is provided via a pivot, slidable shaft, or a pair of parallel linkages. The moveable frame portion may include only the motorcycle seat or may include the tank, seat, and entire motorcycle fairing.
    Type: Grant
    Filed: March 14, 1988
    Date of Patent: February 27, 1990
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Satoru Horiike, Yasuhiko Nakano, Shigetaro Okano, Shigeru Kimura, Toshiteru Yamamoto, Masanobu Matsuzaki, Eiji Hamano, Mikio Kubo
  • Patent number: 4751899
    Abstract: A two-cycle engine includes a port timing control device for varying a timing of the opening of an exhaust port. The port timing control device include a valve member having an end face curved along a cylinder, the valve member being angularly movable in a direction of the axis of the cylinder between an extended position where the valve member is extended into an exhaust passage with the end face closing an upper portion of the exhaust port and a retracted position where the valve member is retracted from the exhaust passage and fully received in a recess formed in an upper wall of the exhaust passage, with the end case opening the upper end portion of the exhaust port. The end face of the valve member is complementary in shape to an end face of the recess.
    Type: Grant
    Filed: May 15, 1987
    Date of Patent: June 21, 1988
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Kenzi Ohki, Toshiro Kawai, Yasuhiko Nakano
  • Patent number: 4671219
    Abstract: A two-cycle internal combustion engine having an oblong cylinder and an oblong piston therein. The engine includes two sets of scavenging ports at either end of the oblong cylinder having at least three ports each. Scavenging passages extending to the scavenging ports may be directed at sequentially increasing angles of inclination to the local normal with the cylinder away from the exhaust porting. In this way, flow may be directed across the piston head away from the exhaust porting and then upwardly to return toward the exhaust porting. A domed piston is also disclosed having discrete guide surfaces on the domed surface of the piston to specifically direct incoming air/fuel mixture upwardly from each of the scavenging ports. An element of the cylinder midway in the long dimension of the cylinder extends in the direction of piston movement without porting so as to provide a smooth wall surface.
    Type: Grant
    Filed: September 9, 1983
    Date of Patent: June 9, 1987
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Kazuo Ooyama, Yasuhiko Nakano