Yasushi Maejima
5 Papers
43 Citations
Yasushi Maejima is an academic researcher. The author has contributed to research in topics: Transformer & Distribution transformer. The author has an hindex of 3, co-authored 5 publications.
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Papers
Patent
Intracorporeal coil for percutaneous charging system for pace maker
Katsuya Hirachi,Kuwana Koji,Yasushi Maejima,Mashima Masafumi,Toshihiro Nishimura,Saito Masaru,靖 前島,克也 平地,宏二 桑名,政文 真嶋,敏博 西村,賢 齋藤 +11 more
- 02 May 1994
TL;DR: In this paper, the authors proposed to miniaturize a pace maker with easier housing of a coil into the pace maker by spirally winding an intracorporeal coil for charging to receive power with a void at the center thereof while the intraconnection coil for telemetering is arranged at the part of the void to transmit or receive information.
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Patent
Primary side core of transformer for contactless energy transmissoin system
Katsuya Hirachi,Yasushi Maejima,Saito Masaru,靖 前島,克也 平地,賢 齋藤 +5 more
- 03 Mar 1995
TL;DR: In this paper, the surface facing the secondary core of a circumferential outer leg 14 of the primary side core 16 is provided with an expanded width part 15 expanded in an inner circumferent direction, radially provided with many slits 21 from its center.
12
Patent
Primary core of non-contact energy transmission system transformer
Katsuya Hirachi,Saito Masaru,Yasushi Maejima +2 more
- 22 Mar 1996
TL;DR: In this paper, the primary core of a transformer is enlarged in width in an outer peripheral direction to turn into an enlarged part 25 so as to make the face 24 wider than the thickness of the peripheral wall 23.
8
An Advanced Transcutaneous Energy Transformer for a Rechargeable Cardiac Pacemaker Battery by Using a
Toshi Hiro Nishimura,Tetsuji Eguchi,Masao Saito,Katsuya Hirachi,Yasushi Maejima +4 more
- 01 Jan 1996
TL;DR: In this article, a flat secondary transcutaneous transformer for a resonant converter that transfers several W of power across a large variable human skin gap is presented and built, and the secondary transformer is piled and the coupling coefficient, the conversion efliciency, the temperature rise are measured with an experimental set up.
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