T
Takashi Yamagajo
Researcher at Fujitsu
Publications - 91
Citations - 1291
Takashi Yamagajo is an academic researcher from Fujitsu. The author has contributed to research in topics: Antenna (radio) & Dipole antenna. The author has an hindex of 17, co-authored 90 publications receiving 1291 citations.
Papers
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Patent
Metal pipe managed by wireless tag and wireless tag
TL;DR: In this paper, a wireless tag is placed inside a metal pipe and includes a power feeding unit to feed electric power to the slot and an IC chip connected to the power unit, thereby functioning as an antenna of the wireless tag.
Patent
Radio frequency identification (RFID) tag and manufacturing method thereof
TL;DR: In this article, an RFID tag includes a dielectric member, an antenna pattern formed on and around a surface of the dielectrics member, and an IC chip that is electrically connected to the antenna pattern by means of two chip pads.
Patent
RFID tag and manufacturing method thereof
TL;DR: In this paper, a high-frequency connection between the power-supply pattern and the patch antenna is formed by forming a slot in the patch antennas, layering one end of a small dipole antenna that functions as the power supply pattern over the slot so that it crosses over a slot, and supplying power from the small-dipole antenna to a patch antenna.
Patent
Meander line antenna
TL;DR: In this paper, a meander line antenna formed in the shape of meander is disclosed, which includes a bottom half section that is constituted by a folded conductive pattern of a folded dipole antenna, and includes a feeding point for mounting an IC chip at the central part.
Patent
Rfid tag and its manufacturing method
Shunji Baba,Hiroyuki Hayashi,Manabu Kai,Toru Maniwa,Takashi Yamagajo,尚志 山ケ城,宏行 林,学 甲斐,俊二 馬場,透 馬庭 +9 more
TL;DR: In this paper, the authors proposed an RFID tag capable of suppressing reduction of communication distance even when the tag is used adjacent to a wave absorber in order to ensure reliability of communication.