Patents by Inventor Masakatsu Suzuki

Masakatsu Suzuki 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: 6308962
    Abstract: An industrial vehicle has a body frame and an axle, which supports wheels and is pivotally supported by the body frame. A potentiometer is supported on the body frame and is spaced apart from the pivot axis of the axle by a predetermined distance. The potentiometer detects the pivot angle of the axle. A link mechanism amplifies motion of axle pivot and converts the axle motion into rotational or linear motion. The link mechanism then actuates the potentiometer in accordance with the converted motion.
    Type: Grant
    Filed: November 13, 1998
    Date of Patent: October 30, 2001
    Assignee: Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
    Inventors: Kazuo Ishikawa, Hiroyuki Fujimori, Masakatsu Suzuki, Kazuo Komori, Takaki Ogawa
  • Patent number: 6290245
    Abstract: An apparatus for controlling pivoting of a forklift rear axle. A hydraulic damper is arranged between a rear axle and a forklift body. The damper includes two oil chambers. The oil chambers are connected to a first passage and a second passage. A two-way switch valve is arranged between the oil chambers. The valve permits the flow of oil between the oil chambers and allows pivoting of the rear axle when opened. The valve restricts the flow of oil between the oil chambers and prohibits pivoting of the rear axle, thereby locking the rear axle when closed. When the rear axle is released from a locked state, the valve repeats a valve cycle, which includes opening and closing the valve, to regulate the amount of fluid that flows between the chambers. The valve is then kept in an opened state. This prevents shock that may be produced by sudden tilting of the body when the rear axle is released from a locked state.
    Type: Grant
    Filed: September 28, 1998
    Date of Patent: September 18, 2001
    Assignee: Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
    Inventors: Kazuo Ishikawa, Takaki Ogawa, Masakatsu Suzuki, Takashi Yamada
  • Patent number: 6190975
    Abstract: Si and SiGeC layers are formed in an NMOS transistor on a Si substrate. A carrier accumulation layer is formed with the use of a discontinuous portion of a conduction band present at the heterointerface between the SiGeC and Si layers. Electrons travel in this carrier accumulation layer serving as a channel. In the SiGeC layer, the electron mobility is greater than in silicon, thus increasing the NMOS transistor in operational speed. In a PMOS transistor, a channel in which positive holes travel, is formed with the use of a discontinuous portion of a valence band at the interface between the SiGe and Si layers. In the SiGe layer, too, the positive hole mobility is greater than in the Si layer, thus increasing the PMOS transistor in operational speed. There can be provided a semiconductor device having field-effect transistors having channels lessened in crystal defect.
    Type: Grant
    Filed: December 9, 1998
    Date of Patent: February 20, 2001
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Minoru Kubo, Katsuya Nozawa, Masakatsu Suzuki, Takeshi Uenoyama, Yasuhito Kumabuchi
  • Patent number: 6179304
    Abstract: An apparatus for controlling pivoting the rear axle of a forklift. The forklift includes forks, which are lifted and lowered relative to a body frame. A locking mechanism, which includes a hydraulic damper and an electromagnetic valve, locks the rear axle to stabilize the body frame. A controller controls the locking mechanism to lock the rear axle when the fork height is at least as great as a predetermined height threshold value and the weight of a load on the fork is at least as great as a predetermined weight threshold value. The controller also controls the locking mechanism to lock the rear axle when the lateral acceleration is at least as great as a predetermined threshold value. Further, the controller changes the threshold value of the lateral acceleration in accordance with the fork height.
    Type: Grant
    Filed: December 2, 1998
    Date of Patent: January 30, 2001
    Assignee: Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
    Inventors: Kazuo Ishikawa, Takaki Ogawa, Masakatsu Suzuki
  • Patent number: 6166911
    Abstract: Provided is a semiconductor assembly, comprising a circuit board (1) including a conductor circuit (4), the conductor circuit including connecting pads, a semiconductor chip (2) provided with connecting terminals provided on a first surface thereof, and mounted on the circuit board, a casing (5) covering the circuit board, wherein the connecting pads of the conductor circuit and the connecting terminals of the semiconductor chip are disposed in mutually opposing relationship, and are connected with each other by an electroconductive bonding agent, a neutral plane of the semiconductor chip substantially coinciding with an overall neutral plane of the semiconductor assembly.
    Type: Grant
    Filed: November 20, 1997
    Date of Patent: December 26, 2000
    Assignees: Hitachi, Ltd., Hitachi Chemical Company, Ltd.
    Inventors: Mitsuo Usami, Kunihiko Nishi, Yoshikatsu Mikami, Masakatsu Suzuki
  • Patent number: 6056501
    Abstract: An axle tilt control apparatus for forklifts is disclosed. The forklift includes a rear axle pivotally supported by a body frame and a front axle rigidly fixed to the body frame. A mast is supported at the front portion of the body frame to tilt forward and backward. Forks are supported by the mast to be lifted and lowered. The center of gravity of the forklift in the fore-and-aft direction approaches the front axle as the mast is tilted forward. Pivoting of the rear axle is restricted by the hydraulic cylinder when the height of the forks is higher than a predetermined height determination value and the weight of a load on the forks is heavier than a predetermined weight determination value to improve the vehicle's stability. The weight determination value increases as the mast is tilted forward. When a load on the forks is being unloaded, tilting of the rear axle is permitted regardless of the height of the forks and the weight of the load on the forks. Therefore, the rear axle is not unnecessarily locked.
    Type: Grant
    Filed: November 12, 1998
    Date of Patent: May 2, 2000
    Assignee: Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
    Inventors: Kazuo Ishikawa, Takaki Ogawa, Masakatsu Suzuki
  • Patent number: 5787104
    Abstract: The semiconductor laser of this invention includes an active layer formed in a c-axis direction, wherein the active layer is made of a hexagonal-system compound semiconductor, and anisotropic strain is generated in a c plane of the active layer.
    Type: Grant
    Filed: January 19, 1996
    Date of Patent: July 28, 1998
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Satoshi Kamiyama, Masakatsu Suzuki, Takeshi Uenoyama, Kiyoshi Ohnaka, Akira Takamori, Masaya Mannoh, Isao Kidoguchi, Hideto Adachi, Akihiko Ishibashi, Toshiya Fukuhisa, Yasuhito Kumabuchi
  • Patent number: 5404707
    Abstract: A fastening element is constructed from a first bar-shaped member (12), wherein a second bar-shaped member (14a ) and a third bar-shaped member (14b ) extend in parallel along a direction normal to the axial direction of the first bar-shaped member (12). The first bar-shaped member (12) has respective ends in which flat or bent slanted portions (18a, 18b ) are formed. The first bar-shaped member is formed additionally with first and second ribs (20a, 20b ) which extend outwardly beyond respective connecting positions between the first bar-shaped member and the second and third bar-shaped members (14a, 14b.
    Type: Grant
    Filed: February 7, 1994
    Date of Patent: April 11, 1995
    Inventor: Masakatsu Suzuki
  • Patent number: 5234522
    Abstract: A flexible printed-circuit board covered with a coverlay is produced by bonding (a) a flexible printed-circuit board that comprises a flexible base having a surface bearing a circuit and (b) a polyimide film having a surface treated to increase adhering property and another surface not treated to increase adhering property, each of the surfaces being coated with an adhesive layer, with the adhesive layer on the surface treated to increase adhering property interposed between the polyimide film and the surface bearing the circuit, and then peeling off the adhesive layer coating the polyimide film on the surface not treated to increase adhering property.
    Type: Grant
    Filed: November 27, 1991
    Date of Patent: August 10, 1993
    Assignee: Hitachi Chemical Company, Inc.
    Inventors: Masakatsu Suzuki, Junichi Imaizumi, Hiroshi Nomura, Kouichi Nagao, Yasushi Katoh, Takato Oti, Eikichi Satou
  • Patent number: 5171826
    Abstract: A heat resistant adhesive composition comprising a specific polyamic acid solution and a bis-maleimide compound exhibits flexibility and excellent heat resistance after bonding two material bodies, and therefore, it can be suitably used for producing of flexible metal-clad laminates, double-sided flexible metal-clad laminates, and multilayer printed circuit boards, and for attaching coverlay films to printed circuit boards.
    Type: Grant
    Filed: November 13, 1991
    Date of Patent: December 15, 1992
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Junichi Imaizumi, Hiroshi Nomura, Kouichi Nagao, Masakatsu Suzuki, Koushi Sakairi, Eikichi Satou
  • Patent number: 5089346
    Abstract: A heat resistant adhesive composition comprising a specific polyamic acid solution and a bis-maleimide compound exhibits flexibility and excellent heat resistance after bonding two material bodies, and therefore, it can be suitably used for producing of flexible metal-clad laminates, double-sided flexible metal-clad laminates, and multilayer printed circuit boards, and for attaching coverlay films to printed circuit boards.
    Type: Grant
    Filed: March 16, 1990
    Date of Patent: February 18, 1992
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Junichi Imaizumi, Hiroshi Nomura, Kouichi Nagao, Masakatsu Suzuki, Koushi Sakairi, Eikichi Satou
  • Patent number: D303718
    Type: Grant
    Filed: January 20, 1987
    Date of Patent: September 26, 1989
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Toshiharu Fujita, Masakatsu Suzuki, Yorimitsu Nagai
  • Patent number: D304377
    Type: Grant
    Filed: September 19, 1986
    Date of Patent: October 31, 1989
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Toshiharu Fujita, Hiroyoshi Yamazaki, Noriyuki Maeda, Kazutaka Shimizu, Norihiko Tanaka, Yoshihiro Domon, Kiyoshi Iwasawa, Mitsuyuki Futatsugi, Fuminobu Takizawa, Masakatsu Suzuki, Makoto Kosaka
  • Patent number: D312700
    Type: Grant
    Filed: April 28, 1987
    Date of Patent: December 4, 1990
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Masakatsu Suzuki, Makoto Kosaka, Hiroyoshi Yamazaki, Mitsuyuki Futatsugi, Toshiharu Fujita, Fuminobu Takizawa, Tamami Tsuchiya, Takeo Saikatsu
  • Patent number: D325568
    Type: Grant
    Filed: November 5, 1990
    Date of Patent: April 21, 1992
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Shiro Murata, Shinji Yamagata, Masakatsu Suzuki
  • Patent number: D328058
    Type: Grant
    Filed: March 9, 1990
    Date of Patent: July 21, 1992
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Masakatsu Suzuki, Eiichi Sugishima, Hideo Iinuma
  • Patent number: D330701
    Type: Grant
    Filed: March 9, 1990
    Date of Patent: November 3, 1992
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Masakatsu Suzuki, Eiichi Sugishima, Hideo Iinuma
  • Patent number: D334174
    Type: Grant
    Filed: October 9, 1991
    Date of Patent: March 23, 1993
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Setsuo Hosogai, Hiroshi Fujii, Yoshiaki Matsumoto, Kazuyoshi Sugihara, Shingo Maeda, Shinji Yokota, Masakatsu Suzuki
  • Patent number: D335488
    Type: Grant
    Filed: December 31, 1991
    Date of Patent: May 11, 1993
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Masakatsu Suzuki, Kazuhiro Ishii, Shingo Akita, Koji Hirotsune, Ichiro Arinobu
  • Patent number: D347623
    Type: Grant
    Filed: January 3, 1992
    Date of Patent: June 7, 1994
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Masakatsu Suzuki, Fumiyuki Hisatsune, Takayoshi Ishikawa, Tsukasa Iio, Yasushi Genba, Kouhei Fujiwara, Shinsaku Yamasaki, Hiroshi Okashita