Patents by Inventor Kenichi Wada

Kenichi Wada 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: 5247387
    Abstract: A method and device for driving an electro-optical light shutter array including a plurality of shutter elements each having an electro-optical effect to polarize an incident light by setting up an electric field. The device includes a plurality of individual electrodes provided on the respective shutter elements and a common electrode provided on the respective shutter elements electrically in common. A square pulse is applied to the arbitrary individual electrode while a triangular pulse is applied to the common electrode to set up an electric field of which an intensity continuously varies within one driving period. Moreover, an alternating electric field may be set up in the electro-optical light shutter array in a recovery period. In this case, a first light amount when the positive electric field is set up and a second light amount when the negative electric field is set up are detected.
    Type: Grant
    Filed: August 30, 1991
    Date of Patent: September 21, 1993
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Ken Matsubara, Itaru Saito, Hirohisa Kitano, Tomohiko Masuda, Kenichi Wada
  • Patent number: 5214759
    Abstract: In a memory device shared among processors, a communication buffer having a size requested by the processing program of the origin of sending is dynamically secured. After the communication buffer has been secured, the send program writes a message to be conveyed to the receive program into the above described communication buffer and asks the send OS to perform sending. The send OS sends a communication ID having "1" set in the bit position corresponding to the receive program. On the basis of the above described bit position, the receive OS specifies a receive program and informs the receive program of that fact. The receive program reads a message from the communication buffer. Communication between the send program and the receive program is thus realized. A send instruction and a receive instruction respectively for exclusive use of sending and reading out a communication ID are prepared beforehand.
    Type: Grant
    Filed: May 22, 1990
    Date of Patent: May 25, 1993
    Assignee: Hitachi, Ltd.
    Inventors: Akira Yamaoka, Kenichi Wada
  • Patent number: 5206684
    Abstract: A recording apparatus including a memory for storing recording information input from an external device, and an optical printing head for recording the information read from the memory onto recording paper. A writing device writes the information into the memory in the order of input, and stops the writing operation when the information as stored in the memory reaches its capacity. A reading device reads the recording information from the memory in the order opposite to the order in which the information is written, and transmits the information to the printing head for recording. The writing operation is resumed after this information is recorded on the recording paper.
    Type: Grant
    Filed: March 14, 1990
    Date of Patent: April 27, 1993
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Kenichi Wada, Tsukasa Yagi, Tomohiko Masuda, Hirohisa Kitano, Ken Matsubara, Kohichi Shingaki
  • Patent number: 5201040
    Abstract: A data processing system which has a plurality of sets of sub-systems, with each set including: a plurality of processors; a main storage; and a controller for controlling the transfer between at least each of the processors and the main storage. A shared storage apparatus is shared between the sub-systems to store exclusive control information, information on the processor-to-processor communications and an instruction to be transferred between the main storages and the shared storage apparatus when the information is accessed by each sub-system. The instruction designates a main storage address, a transfer data length and specified information on accessing the location of the shared storage apparatus and is decoded by the processors to that the main storage address is transferred to the main storage, whereas the specified information such as a data identifier and a relative address is transferred to the shared storage apparatus.
    Type: Grant
    Filed: June 20, 1988
    Date of Patent: April 6, 1993
    Assignee: Hitachi, Ltd.
    Inventors: Kenichi Wada, Akira Yamaoka
  • Patent number: 5166510
    Abstract: A light printer with a light shutter having an array of electro-optical elements is disclosed. The light printer provides with a detection circuit for monitoring temperature and/or time dependent variations regarding the electro-optical elements of the light shutter and a driving voltage control circuit for controlling an optimum driving voltage of the light shutter according to results detected by the detection circuit.
    Type: Grant
    Filed: April 4, 1991
    Date of Patent: November 24, 1992
    Assignee: Minolta Camera Co., Ltd.
    Inventors: Ken Matsubara, Tsukasa Yagi, Tomohiko Masuda, Koji Wakamiya, Itaru Saito, Kenichi Wada, Hirohisa Kitano
  • Patent number: 5150905
    Abstract: A rubber composition comprising at least one natural and/or synthetic rubber component(s), fine inorganic fibers subjected to a surface treatment with a surface treating agent and a non-sulfur type vulcanizing agent and a golf ball comprising the composition which exhibits excellent durability, bounce impact elasticity and excellent feeling upon hitting.
    Type: Grant
    Filed: July 11, 1990
    Date of Patent: September 29, 1992
    Assignees: Asics Corporation, Otsuka Chemical Company, Limited
    Inventors: Syoji Yuki, Yasuyuki Tokui, Kihachiro Nishiuchi, Kenichi Wada, Masayoshi Suzue, Takuo Morimoto
  • Patent number: 5141233
    Abstract: A rubber composition comprising at least one natural and/or synthetic rubber component(s), fine inorganic fibers subjected to a surface treatment with a surface treating agent and a non-sulfur type vulcanizing agent and a golf ball comprising the composition which exhibits excellent durability, bounce impact elasticity and excellent feeling upon hitting.
    Type: Grant
    Filed: July 11, 1990
    Date of Patent: August 25, 1992
    Assignees: Asics Corporation, Otsuka Chemical Company, Limited
    Inventors: Syoji Yuki, Yasuyuki Tokui, Kihachiro Nishiuchi, Kenichi Wada, Masayoshi Suzue, Takuo Morimoto
  • Patent number: 5103267
    Abstract: An image forming system carries out a simplex recording operation for forming an image on one side of recording paper and discharge the paper onto a discharge tray, and a composite or duplex recording operation in which image-carrying recording paper is formed with a further image on the same image-carrying side or a reverse side prior to discharge. This system includes a paper refeeding device for temporarily storing the recording paper after the simplex recording and refeeding the recording paper to an image forming device for recording a second image thereon, and a mode selector for selecting between a page arranging mode and a non-page arranging mode. The recording paper is discharged directly onto the discharge tray when the non-page arranging mode is selected. On the other hand, when the page arranging mode is selected, the recording paper is transported through the paper refeeding device and recording section and out to the discharge tray.
    Type: Grant
    Filed: April 3, 1990
    Date of Patent: April 7, 1992
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Kenichi Wada, Tsukasa Yagi, Tomohiko Masuda, Hirohisa Kitano, Itaru Saitoh, Ken Matsubara, Kohichi Shingaki
  • Patent number: 5093676
    Abstract: A method of driving an electro-optical light shutter for use in a recording apparatus. According to the method, an electric field of a predetermined direction is applied to the light shutter during a recording period and a further electric field having a direction opposite to the predetermined direction is applied to the light shutter during a waiting period.
    Type: Grant
    Filed: February 20, 1990
    Date of Patent: March 3, 1992
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Ken Matsubara, Itaru Saito, Hirohisa Kitano, Kouichi Shingaki, Tomohiko Masuda, Kenichi Wada, Koji Wakamiya, Tsukasa Yagi, Atsushi Fujita
  • Patent number: 5075724
    Abstract: A system for recognizing a detachable article attached to an apparatus, and judging whether the article as mounted in position is genuine. The article can be identified by the predetermined device, whereas the apparatus includes a detector for detecting the device. The apparatus is driven according to a result obtained by the detector. The system of the present invention is particularly suited for a toner bottle, PC unit and so on attached to a copier, printer or other image-forming apparatus.
    Type: Grant
    Filed: August 24, 1989
    Date of Patent: December 24, 1991
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Kenichi Wada, Ken Matsubara, Kouichi Shingaki, Tomohiko Masuda, Tsukasa Yagi
  • Patent number: 5032980
    Abstract: A level machine information system is provided with an instruction register for storing an address of an instruction read out from an instruction memory, an instruction decoder for producing control signals complying with the instruction read out, a calculator for producing a new address of an instruction to be executed next on the basis of the address outputted from the instruction register, an instruction length code supplied from the decoder as the control signals, a plurality of first registers for saying the address outputted from the instruction register, a plurality of second registers for saving the new address, a controller and a selector for supplying the instruction register with the new address, the saved new address and fixed addresses each indicating the head of interruption programs in the instruction memory. The first and second registers correspond to all but the highest interruption priority level.
    Type: Grant
    Filed: September 7, 1988
    Date of Patent: July 16, 1991
    Assignee: Hitachi, Ltd.
    Inventors: Seiichi Ozaki, Kenichi Wada, Shigeki Morimoto
  • Patent number: 4955966
    Abstract: A rubber composition comprising at least one natural and/or synthetic rubber component(s), fine inorganic fibers subjected to a surface treatment with a surface treating agent and a non-sulfur type vulcanizing agent and a golf ball comprising the composition which exhibits excellent durability, bounce impact elasticity and excellent feeling upon hitting.
    Type: Grant
    Filed: June 9, 1988
    Date of Patent: September 11, 1990
    Assignees: Asics Corporation, Otsuka Chemical Co., Ltd.
    Inventors: Syoji Yuki, Yasuyuki Tokui, Kihachiro Nishiuchi, Kenichi Wada, Masayoshi Suzue, Takuo Morimoto
  • Patent number: 4954947
    Abstract: An instruction processor effecting operations for register operands and for processing branch instructions to perform address calculations for branch destination instructions, comprising general-purpose registers storing data including results of operations of said instruction processor, address adders calculating the address of branch destination instructions by using data read out from the general-purpose register and an ALU performing arithmetical or logical operations on the data read out from the general-purpose register in the decode cycle of the instructions. The result of the arithmetical or logical operation is inputted into the address adder but not from the general-purpose register, in the case where the result of the arithmetical or logical operation is utilized for address calculation in the execution of a succeeding instruction.
    Type: Grant
    Filed: March 21, 1989
    Date of Patent: September 4, 1990
    Assignee: Hitachi, Ltd.
    Inventors: Kazunori Kuriyama, Kenichi Wada, Akira Yamaoka
  • Patent number: 4924377
    Abstract: Address calculation adders and a buffer storages are each independently provided for each operand of an instruction requiring two or more operands. In the translation instruction processing, the address calculations and operand fetch operations on the first and second operands are substantially asynchronously conducted. Consequently, the overhead that takes place one every n second operand fetch operations can be removed by independently and asynchronously performing the address calculations and operand fetch operations by use of a plurality of address adders. Moreover, the circuit for separating and obtaining a byte from the operand buffer can be dispensed with by adopting an operation procedure in which a byte of the first operand is fetched and is stored in temporary store means that supplies the address adder the data stored therein.
    Type: Grant
    Filed: December 28, 1984
    Date of Patent: May 8, 1990
    Assignee: Hitachi, Ltd.
    Inventors: Kazunori Kuriyama, Kenichi Wada, Akira Yamaoka
  • Patent number: 4916606
    Abstract: A data processing apparatus of processing first instruction of a type in which the result of operation of the first instruction is stored in at least one storage location designated by operands of the first instruction and second instruction of a type which succeeds to the first instruction and makes use of the result of operation of the first instruction as operand data. The apparatus comprises an OSC control circuit for detecting whether at least a part of the result of operation of the first instruction is to be used or not as the operand data for the second instruction, and an arithmetic unit for allowing the result of operation of the first instruction to be directly used as the operand data for the second instruction when the OSC control circuit detects the given condition is fulfilled.
    Type: Grant
    Filed: July 20, 1987
    Date of Patent: April 10, 1990
    Assignee: Hitachi, Ltd.
    Inventors: Akira Yamaoka, Kenichi Wada, Kazunori Kuriyama, Yooichi Shintani
  • Patent number: 4913575
    Abstract: A printer with a printing paper feeding apparatus is disclosed.The printer comprises a pressing device for pressing a printing sheet on the platen roller which is operable to an open position to allow the sheet to pass freely, a detection device for detecting a position of the sheet being fed along said platen roller by said sheet feeding device and an operation device for moving the pressing device from a said first position to a second position or vice versa according to the position of the sheet detected by the detection device.
    Type: Grant
    Filed: January 24, 1989
    Date of Patent: April 3, 1990
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventor: Kenichi Wada
  • Patent number: 4827402
    Abstract: In the pipeline data processing system, a branch instruction is preliminarily detected from a string of instructions to be executed before execution thereof and the branch address is calculated. When the branch address is thereafter changed due to a change in the content of the register used to calculate the branch address, the calculated branch address is invalidated and a new branch address is calculated and the branch is executed. The change of the branch address is checked and performed on a basis of the comparison between the fields used for address calculation and the field of the address into which the data is to be written.
    Type: Grant
    Filed: April 22, 1986
    Date of Patent: May 2, 1989
    Assignee: Hitachi, Ltd.
    Inventor: Kenichi Wada
  • Patent number: 4792947
    Abstract: A method of multi-address communication in a loop network formed by connecting a plurality of nodes each provided with a data processor to one another through a transmission line in which, in order for a transmitting node having transmitted a multicast information frame to be able to confirm the delivery of the multicast information frame, the transmitting node transmits a multicast response frame for the delivery of confirmation of the multicast information frame, immediately after the transmission of the multicast information frame, and receiving nodes present information for indicating the reception of the multicast information frame at the address part of the multicast response frame, in the order of node arrangement in the loop network in the direction from the transmitting node toward the downstream thereof, to check the information by each of the receiving nodes and the transmitting node.
    Type: Grant
    Filed: April 13, 1987
    Date of Patent: December 20, 1988
    Assignee: Hitachi, Ltd.
    Inventors: Yoshihiro Takiyasu, Kenichi Wada
  • Patent number: D342499
    Type: Grant
    Filed: March 3, 1992
    Date of Patent: December 21, 1993
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yuzo Fujii, Kenichi Wada, Masao Yoshikawa, Hiroaki Nishiyori
  • Patent number: D342500
    Type: Grant
    Filed: March 13, 1992
    Date of Patent: December 21, 1993
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kenichi Wada, Yuzo Fujii, Masakazu Nakamura, Masao Yoshikawa, Hiroaki Nishiyori