Patents Assigned to Nippon Antenna Co., Ltd.
-
Patent number: 9748658Abstract: First and second hot elements are formed on the front surface of a long and thin substrate. First and second earth elements are formed on the rear surface of the substrate. First and second parasitic elements are disposed adjacent to the hot elements and the earth elements, thereby forming a first-stage element. A second-stage element has a corresponding structure. A first branch line and a second branch line are formed on the front surface. The hot elements of the first-stage and second-stage elements are fed from a feeding point through the first and second branch lines. An earth line is formed on the rear surface. The earth elements of the first-stage and second-stage elements are fed from the feeding point through the earth line. The hot element and the earth element form a dipole antenna. The parasitic element is disposed adjacent to the dipole antenna to broaden a frequency band.Type: GrantFiled: March 10, 2016Date of Patent: August 29, 2017Assignee: NIPPON ANTENNA CO., LTD.Inventors: Takeshi Motegi, Motoki Oshima, Shinichi Kitazawa
-
Publication number: 20170033472Abstract: First and second hot elements are formed on the front surface of a long and thin substrate. First and second earth elements are formed on the rear surface of the substrate. First and second parasitic elements are disposed adjacent to the hot elements and the earth elements, thereby forming a first-stage element. A second-stage element has a corresponding structure. A first branch line and a second branch line are formed on the front surface. The hot elements of the first-stage and second-stage elements are fed from a feeding point through the first and second branch lines. An earth line is formed on the rear surface. The earth elements of the first-stage and second-stage elements are fed from the feeding point through the earth line. The hot element and the earth element form a dipole antenna. The parasitic element is disposed adjacent to the dipole antenna to broaden a frequency band.Type: ApplicationFiled: March 10, 2016Publication date: February 2, 2017Applicant: NIPPON ANTENNA CO., LTD.Inventors: Takeshi MOTEGI, Motoki OSHIMA, Shinichi KITAZAWA
-
Patent number: 8593264Abstract: A remote lighting control system is for remote lighting control of a plurality of discharge lamps. This system has the installed electronic ballasts of each discharge lamp. Each electronic ballast has a transceiver and a controller, the transceiver exchanges control information with the controller. The control command contains the identifiable information to specify one of a plurality of electronic ballasts. When the transmitter is received the control command, the transceiver transfers the received control command to other electronic ballasts further. Moreover, if the control command is the one that the identifiable information specifies own ballasts, the control information based on the received control command is send to own controller, and the controller control the discharge lamp. According to this system, when a lot of lamps was arranged the factory etc. comparatively widely, the user's remote control is not limited to the narrow scope.Type: GrantFiled: March 3, 2010Date of Patent: November 26, 2013Assignees: Eye Lighting Systems Corporation, Nippon Antenna Co., Ltd.Inventors: Yoshihisa Umezawa, Ichirou Terayama, Masakazu Ikeda, Yusuke Tainaka
-
Publication number: 20100259193Abstract: A remote lighting control system is for remote lighting control of a plurality of discharge lamps. This system has the installed electronic ballasts of each discharge lamp. Each electronic ballast has a transceiver and a controller, the transceiver exchanges control information with the controller. The control command contains the identifiable information to specify one of a plurality of electronic ballasts. When the transmitter is received the control command, the transceiver transfers the received control command to other electronic ballasts further. Moreover, if the control command is the one that the identifiable information specifies own ballasts, the control information based on the received control command is send to own controller, and the controller control the discharge lamp. According to this system, when a lot of lamps was arranged the factory etc. comparatively widely, the user's remote control is not limited to the narrow scope.Type: ApplicationFiled: March 3, 2010Publication date: October 14, 2010Applicants: EYE LIGHTING SYSTEMS CORPORATION, NIPPON ANTENNA CO., LTD.Inventors: Yoshihisa Umezawa, Ichirou Terayama, Masakazu Ikeda, Yusuke Tainaka
-
Publication number: 20070024512Abstract: In a mirror device with an antenna of the present invention the antenna is placed in a mirror housing where a mirror configured to reflect a rear of a vehicle is attached, a grounding portion at least part of which is composed of a conductive material is provided in the mirror housing, and the antenna is electrically connected to the conductive material of the grounding portion.Type: ApplicationFiled: May 2, 2006Publication date: February 1, 2007Applicants: MURAKAMI CORPORATION, NIPPON ANTENNA CO., LTD.Inventors: Masahiko Muramatsu, Mitsuyoshi Nagao, Hidenori Sato, Takeshi Nakayama, Jinichi Inoue
-
Patent number: 5446469Abstract: An extendible whip antenna suitable for a hand-held two-way radio apparatus having a wide frequency band and a high sensitivity is disclosed, in which when it is used for communication, a 1/2-wave length whip antenna is extended outside of a case and a stopper conductor thereof is engaged with a holder conductor so that it is connected with a radio circuit through a matching circuit together with a 1/2-wave length helical antenna element.Type: GrantFiled: November 28, 1994Date of Patent: August 29, 1995Assignee: Nippon Antenna Co., Ltd.Inventor: Mitsuya Makino
-
Patent number: 5248988Abstract: An antenna used for a plurality of frequencies in common according to the present invention has two signal feeding systems for an integrated antenna. The antenna is so constructed that the signal feeding systems are perfectly isolated in DC from each other through a capacitor and at the same time in high frequency, only the signal system for the car telephone frequency band, which is a communication with a moving body, is coupled with the whole antenna, while the signal system for the AM/FM radio frequency band is separated from the antenna radiator portion (radiating element) working at the car telephone frequency band. Owing to a great difference in the frequency between the AM/FM radio frequency band and the car telephone frequency band, no disturbance such as mutual interference, etc. is produced and thus it is possible to obtain stable signal systems separated from each other.Type: GrantFiled: June 1, 1992Date of Patent: September 28, 1993Assignee: Nippon Antenna Co., Ltd.Inventor: Mitsuya Makino
-
Patent number: 5025263Abstract: A multi-frequency antenna to be used commonly for reception of multiple different frequencies includes first and second rods extendably held by and through a third rod. The first rod is coupled to the second rod via a phase shifter so that when the first and second rods are fully extended, the antenna behaves as a high gain antenna for common use in an AM, FM and car telephone system.Type: GrantFiled: December 19, 1989Date of Patent: June 18, 1991Assignee: Nippon Antenna Co., Ltd.Inventors: Kengo Okamoto, Takaaki Habu, Shoji Muroi
-
Patent number: 4983892Abstract: A control apparatus is placed in a drive circuit of a motor of an electrically driven antenna. The drive circuit is provided in parallel with a transmitter-receiver circuit of a transmitter-receiver, and an operation unit is provided so that control instruction can be given by manual operation to a control apparatus. The electrically driven antenna is extended or contracted by an amount determined by the instruction that is given from an operation unit interlocked with a turn-on or off of the power source of a transmitter-receiver. The control apparatus includes, for example, switch plates which are moved by a small motor. Variable contact pieces for the switch plates are adjusted by a manual operation unit to obtain a suitable control instruction through mechanical operation. Alternatively, the control apparatus can be operated electrically by using a control circuit and operation unit.Type: GrantFiled: July 18, 1988Date of Patent: January 8, 1991Assignee: Nippon Antenna Co., Ltd.Inventors: Mitsuhiro Suga, Akio Takizawa
-
Patent number: 4978966Abstract: An antenna has a plurality of rod-shaped cores aligned in an end-to-end relationship and an antenna coil wound on the core array throughout its entire length. This arrangement permits the antenna to bend and fit any curved surface of a car where the antenna is mounted.Type: GrantFiled: June 16, 1989Date of Patent: December 18, 1990Assignee: Nippon Antenna Co., Ltd.Inventors: Akio Takizawa, Fumio Furuta, Syozo Saito
-
Patent number: 4879570Abstract: A broadcasting wave reception antenna have a magnetic core having multiple radial projections extending on a common plane, and respective projections are provided with coils wound on them.Type: GrantFiled: March 16, 1988Date of Patent: November 7, 1989Assignee: Nippon Antenna Co., Ltd.Inventors: Akio Takizawa, Syozo Saito
-
Patent number: D308204Type: GrantFiled: January 8, 1987Date of Patent: May 29, 1990Assignee: Nippon Antenna Co., Ltd.Inventor: Akio Takizawa
-
Patent number: D315563Type: GrantFiled: August 5, 1988Date of Patent: March 19, 1991Assignee: Nippon Antenna Co., Ltd.Inventor: Akio Takizawa
-
Patent number: D315738Type: GrantFiled: August 5, 1988Date of Patent: March 26, 1991Assignee: Nippon Antenna Co., Ltd.Inventor: Akio Takizawa
-
Patent number: D343623Type: GrantFiled: January 3, 1991Date of Patent: January 25, 1994Assignee: Nippon Antenna Co. Ltd.Inventor: Akio Takizawa