Patents by Inventor Norio Narazaki

Norio Narazaki 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: 6202883
    Abstract: A tray for semiconductor integrated circuit devices, including a plurality of first partition walls extending in a first direction, a plurality of second partition walls extending in a second direction at right angles with the first direction, and circumferential frame portions connecting end portions of the first and second partition walls. The regions surrounded by the first partition walls and the second partition walls constitute seating portions for seating semiconductor integrated circuit devices. The first partition walls are disposed such that one first partition wall is disposed between two rows of the seating portions which are adjacent to each other in the second direction. The second partition walls are disposed such that two second partition walls are disposed between two rows of the seating portions which are adjacent to each other in the first direction, and opening portions are formed between the two second partition walls.
    Type: Grant
    Filed: January 28, 1999
    Date of Patent: March 20, 2001
    Assignee: Mitsubishi Engineering-Plastics Corp.
    Inventors: Norio Narazaki, Yutaka Shiraishi, Osamu Kakinoki
  • Patent number: 5942169
    Abstract: A method of over-molding used to produce a three-dimensional hollow molded article employs a core made of resin having a hollow portion. The core is placed in a cavity of a mold. Molten resin is injected into a space formed by the core and a cavity wall of the mold through a resin injection portion. In this way at least part of the outer surface of the core is covered with resin. Deformation of the core due to the pressure of the resin during injection is prevented in one of a number of different ways. The over-molding method is optimized by calculating a temperature distribution and a pressure distribution of the molten resin in the step of injecting the molten resin into the space by numerical analysis. The displacement distribution and for the stress distribution of the core caused by pressure applied to the core by flow of the molten resin is calculated by a numerical analysis on the basis of the calculated temperature distribution and pressure distribution.
    Type: Grant
    Filed: November 27, 1995
    Date of Patent: August 24, 1999
    Assignee: Mitsubishi Engineering-Plastics Corp,
    Inventors: Norio Narazaki, Yutaka Shiraishi, Osamu Kakinoki
  • Patent number: 5846633
    Abstract: A chassis is formed of a one-piece thermoplastic or thermosetting resin body. A bottom member extends in a bottom plane, and has at least three side members extending in respective planes. Junction portions join the bottom member and the side members. Ribs are intermittently molded as one piece to bottom member and to side member and extend from the bottom plane from the bottom member through the junction portion to the side plane of the side member. An opening portion helps to prevent angular deformation of the resin body between the bottom member and the side member from a desired angle between the bottom plane and the side plane when the one-piece body is molded by minimizing differences in the cooling rate at different parts adjacent to the junction portion in the one-piece body. The opening portion is located between the ribs at least adjacent to and along the junction portion. The opening portion has a length along the junction portion that is at least five/ten the length of the junction portion.
    Type: Grant
    Filed: August 20, 1996
    Date of Patent: December 8, 1998
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Norio Narazaki, Yoshihiro Kayano, Yuko Itagaki, Ryoji Ukaji
  • Patent number: 5576086
    Abstract: A molded article is formed of a thermoplastic or thermosetting resin and has two planes joining each other in a junction portion; at least one of the two planes has an opening portion or a thin wall portion in the vicinity of the junction portion in order to decrease warpage of the molded article.
    Type: Grant
    Filed: December 2, 1994
    Date of Patent: November 19, 1996
    Assignees: Mitsubishi Gas Chemical Company, Inc., Ichikoh Industries, Ltd.
    Inventors: Norio Narazaki, Yoshihiro Kayano, Yuko Itagaki, Ryoji Ukaji
  • Patent number: 4653268
    Abstract: In a regenerative gas turbine cycle in which heat recovery is carried out by multi-phase and multi-component mixture of compressed air/liquid phase water/steam (hereinafter referred to as MPC mixture), said mixture being obtained by injection of liquid phase water (hereinafter referred to simply as water) into a part of or the whole of compressed gas using air or air based gas (hereinafter referred to as air) as a combustion supporting/working medium gas; the improvement comprising(a) intercooling of said compressor, and/or(b) precooling of the compressed air for producing the MPC mixtureby a part of the MPC mixture.
    Type: Grant
    Filed: June 6, 1985
    Date of Patent: March 31, 1987
    Assignee: Mitsubishi Gas Chemical Co., Inc.
    Inventors: Hiromi Nakamura, Takehiko Takahashi, Norio Narazaki, Kazuo Yamamoto, Norio Sayama
  • Patent number: 4610137
    Abstract: A regenerative gas turbine cycle wherein heat recovery is carried out by a mixture of air/steam which is obtained by contact between water and compressed air, the compressed air being compressed by a compressor for compressing gas using air or air based gas as a combustion supporting/working medium gas. The cycle includes the improvement whereby mixture of air/steam and liquid phase cooled water is obtained through contact between the compressed air and heated water which is used as heat recovering medium; the cooled water being used as heat recovering medium not only for heat recovery of turbine exhaust gas but also, for(a) intercooling of the compressor, and/or(b) precooling of compressed air for the contact operation.Water corresponding to the amount of water which contacts the compressed air and is lost by evaporation is added to the liquid phase water for contact or heat recovery as it is or after use as a heat recovering medium.
    Type: Grant
    Filed: June 13, 1985
    Date of Patent: September 9, 1986
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Hiromi Nakamura, Takehiko Takahashi, Norio Narazaki, Kazuo Yamamoto, Norio Sayama
  • Patent number: 4537023
    Abstract: In a regenerative gas turbine cycle in which heat recovery is carried out by a mixture of air/steam which is obtained by contact between water and a part of or the whole of compressed air, said compressed air being compressed by a compressor for compressing gas using air or air based gas as a combustion supporting/working medium gas; the improvement comprising: the mixture of air/steam and liquid phase cooled water being obtained through the contact between the compressed air and heated water which is used as heat recovering medium; said cooled water being used as heat recovering medium not only for heat recovery of turbine exhaust gas but also, for(a) intercooling of the compressor, and/or(b) precooling of compressed air for the contact operation;supplying water corresponding to the amount of water which contacts the compressed air and is lost by evaporation to the liquid phase water for contact or heat recovery as it is or after using as a heat recovering medium.
    Type: Grant
    Filed: December 9, 1982
    Date of Patent: August 27, 1985
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Hiromi Nakamura, Takehiko Takahashi, Norio Narazaki, Kazuo Yamamoto, Norio Sayama