Patents by Inventor Kunihiko Takahashi

Kunihiko Takahashi 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: 8441193
    Abstract: A highly-reliable electronic frequency tuning magnetron comprises an anode for forming a resonant cavity which is segmented into a plurality of spaces in an inner periphery side of a cylindrical anode shell, a cathode provided at the center of the anode shell along its cylindrical axial direction and an exhausted structure having a coaxial central conductor which is connected to the inside of the cavity of the anode shell and is coupled thereto in a high-frequency manner, wherein the coaxial central conductor is externally led through a wall of the exhausted structure via a through-hole and the through-hole is covered by a dielectric portion placed between an external conductor for constituting the coaxial central conductor and the central conductor, wherein a portion of the led coaxial central conductor is conductively connected to a switching element.
    Type: Grant
    Filed: October 2, 2009
    Date of Patent: May 14, 2013
    Assignee: New Japan Radio Co., Ltd.
    Inventors: Hideyuki Obata, Kunihiko Takahashi
  • Publication number: 20110057563
    Abstract: A highly-reliable electronic frequency tuning magnetron comprises an anode for forming a resonant cavity which is segmented into a plurality of spaces in an inner periphery side of a cylindrical anode shell, a cathode provided at the center of the anode shell along its cylindrical axial direction and an exhausted structure having a coaxial central conductor which is connected to the inside of the cavity of the anode shell and is coupled thereto in a high-frequency manner, wherein the coaxial central conductor is externally led through a wall of the exhausted structure via a through-hole and the through-hole is covered by a dielectric portion placed between an external conductor for constituting the coaxial central conductor and the central conductor, wherein a portion of the led coaxial central conductor is conductively connected to a switching element.
    Type: Application
    Filed: October 2, 2009
    Publication date: March 10, 2011
    Applicant: NEW JAPAN RADIO CO., LTD.
    Inventors: Hideyuki Obata, Kunihiko Takahashi
  • Patent number: 6630380
    Abstract: A method for making metal-insulator-metal (MIM) capacitors having insulators with high-dielectric-constant or ferroelectric interelectrode films compatible with the dual-damascene process is achieved. The method of integrating the MIM with a dual-damascene process is to form a planar a first insulating layer and to deposit an etch-stop layer and a second insulating layer. Capacitor node contact openings are etched to the substrate and first recesses are etched to the etch-stop layer. The contact openings and first recesses are filled with a conducting layer using a dual-damascene process. Second recesses are formed in the second insulating layer around the capacitor node contacts. A conformal first metal layer, an interelectrode dielectric layer, and a second metal layer are deposited, and are patterned at the same time to form the capacitors over the node contacts. The second recesses increase the capacitor area while the simultaneous patterning of the metal layers results in fewer processing steps.
    Type: Grant
    Filed: September 30, 2002
    Date of Patent: October 7, 2003
    Assignee: Chartered Semiconductor Manufacturing Ltd
    Inventors: Wei-Hua Cheng, Daniel Yen, Kunihiko Takahashi, Ming Lei, Thomas Joy
  • Patent number: 4878228
    Abstract: A multichannel microwave relay station has first and second channels for respectively transmitting signals of different types of modulation, such as QAM and FM modulated signals. These different types of signal rely on a common standby transmission channel that is selectively capable of transmitting the different types of signals. The type of signal currently carried by the standby channel is automatically identified by a detector circuit, such as one that can automatically distinguish differences in the frequency spectrums of the different types of signals. A selecting circuit responds to the output of the detector circuit by selecting between first and second transmitting devices in the common channel, thereby dedicating it to the identified type of signal.
    Type: Grant
    Filed: July 1, 1986
    Date of Patent: October 31, 1989
    Assignee: Nec Corporation
    Inventor: Kunihiko Takahashi
  • Patent number: D354537
    Type: Grant
    Filed: May 26, 1993
    Date of Patent: January 17, 1995
    Assignee: Daiwa Golf Co., Ltd.
    Inventors: Kunihiko Takahashi, Shigeki Take
  • Patent number: D355010
    Type: Grant
    Filed: April 20, 1993
    Date of Patent: January 31, 1995
    Assignee: Daiwa Golf Co., Ltd.
    Inventors: Kunihiko Takahashi, Shigeki Take
  • Patent number: D360444
    Type: Grant
    Filed: December 30, 1993
    Date of Patent: July 18, 1995
    Assignee: Daiwa Golf Co., Ltd.
    Inventors: Kunihiko Takahashi, Yutaka Oku
  • Patent number: D362041
    Type: Grant
    Filed: June 20, 1994
    Date of Patent: September 5, 1995
    Assignee: Daiwa Golf Co., Ltd.
    Inventors: Kunihiko Takahashi, Yuichi Aizawa
  • Patent number: D362481
    Type: Grant
    Filed: July 19, 1994
    Date of Patent: September 19, 1995
    Assignee: Daiwa Golf Co., Ltd.
    Inventors: Kunihiko Takahashi, Yuichi Aizawa
  • Patent number: D369393
    Type: Grant
    Filed: January 30, 1995
    Date of Patent: April 30, 1996
    Assignee: Daiwa Golf Co., Ltd.
    Inventors: Kunihiko Takahashi, Yutaka Oku
  • Patent number: D377381
    Type: Grant
    Filed: January 5, 1996
    Date of Patent: January 14, 1997
    Assignee: Daiwa Seiko, Inc.
    Inventors: Kunihiko Takahashi, Yuichi Aizawa
  • Patent number: D383819
    Type: Grant
    Filed: April 24, 1996
    Date of Patent: September 16, 1997
    Assignee: Daiwa Seiko, Inc.
    Inventors: Kunihiko Takahashi, Yasuto Imai
  • Patent number: D384383
    Type: Grant
    Filed: June 25, 1996
    Date of Patent: September 30, 1997
    Assignee: Daiwa Seiko, Inc.
    Inventors: Kunihiko Takahashi, Masato Fujii, Kenji Sasaki
  • Patent number: D386549
    Type: Grant
    Filed: May 13, 1996
    Date of Patent: November 18, 1997
    Assignee: Daowa Seiko Inc.
    Inventors: Kunihiko Takahashi, Yasuto Imai, Takehiko Asakuno
  • Patent number: D389206
    Type: Grant
    Filed: June 19, 1996
    Date of Patent: January 13, 1998
    Assignee: Daiwa Seiko, Inc.
    Inventor: Kunihiko Takahashi
  • Patent number: D397180
    Type: Grant
    Filed: September 11, 1996
    Date of Patent: August 18, 1998
    Assignee: Daiwa Seiko, Inc.
    Inventors: Kunihiko Takahashi, Takao Horie, Yutaka Oku
  • Patent number: D408485
    Type: Grant
    Filed: April 17, 1998
    Date of Patent: April 20, 1999
    Assignee: Daiwa Seiko, Inc.
    Inventors: Kunihiko Takahashi, Kenji Sasaki, Kenichi Shinoda
  • Patent number: D410514
    Type: Grant
    Filed: March 30, 1998
    Date of Patent: June 1, 1999
    Assignee: Daiwa Seiko, Inc.
    Inventors: Kunihiko Takahashi, Yutaka Oku, Kenichi Shinoda