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H01H2203/014： ..颗粒;微球粒

序号	专利名	申请号	申请日	公开（公告）号	公开（公告）日	发明人
41	Push button switch	JP2000348063	2000-11-15	JP2002150876A	2002-05-24	ASADA MAKOTO
PROBLEM TO BE SOLVED: To provide a push button switch having reduced probability of contact failure. SOLUTION: For the push button switch comprising a lower electrode mounted on a base board, and a dome-shaped upper electrode covering the upside of the lower electrode, the lower electrode has a hole or a concave part, and the upper electrode has a convex part which is convex downward, and by impressing a pressing force to the upper electrode, the convex part touches with the peripheral electrode of the hole or the concave part, and by releasing the pressing force, the upper electrode disjoins from the lower electrode by an elastic force. COPYRIGHT: (C)2002,JPO
42	Membrane switch	JP7885090	1990-03-29	JPH03283220A	1991-12-13	KOBAYASHI SHOICHI; SHIMOJO KAZUTOSHI
PURPOSE: To obtain a transparent membrane switch with which production of interference fringes is prevented and with which bounce at the time of switching action is restricted by forming a number of fine irregularities at least in a surface of one glass substrate facing the other glass substrate, and forming electrodes in the irregular surface. CONSTITUTION: A membrane switch consists of a lower glass substrate having an upper surface of an irregular surface 3a where a number of fine irregularities are formed, with lower electrodes 4 patterned in the irregular surface 3a. Light from a light source is irregularly reflected at the irregular surface 3a of the lower glass substrate 3, so interference fringes are not generated, and a high grade membrane switch can be achieved. The lower electrodes 4 of a form shaped along the irregular surface 3a has fine protrusions 4a, and upper electrodes 2 are put to get in point contact with the fine protrusions 4a for changing into a switch-on condition, so bounce in a switching action can be restricted compared to a case where both electrodes get in surface contact with each other, thereby a membrane switch of a higher responsiveness can be obtained. COPYRIGHT: (C)1991,JPO&Japio
43	Kanatsuhenkansochi	JP13176380	1980-09-24	JPH0249029B2	1990-10-26	FURANKURIN NIIRU EBENTOFU

44	Keyboard unit	JP16553081	1981-10-16	JPS5866216A	1983-04-20	SADO RIYOUICHI; SUGANO SATORU; IKEDA MASAHIRO

45	푸시 버튼 스위치 및 푸시버튼 스위치용 가동접점체	KR1020000024569	2000-05-09	KR100371753B1	2003-02-11	오노유따까; 이와마나오야; 야마가따다께오
To provide the structure of a dome-shaped movable contact having a reverse function used in a push button switch, wherein it is possible that the movable contact comes into contact with a fixed contact at position excluding the central portion thereof where dusts are liable to gather, obtains high contact reliability, has good feeling in manipulation and is excellent in an intimate contact property with a sheet member covering the movable contact. The push button switch includes fixed contacts, a dome-shaped movable contact disposed above the fixed contacts, and a projection formed on the inner surface of the movable contact at a portion excluding a dome-shaped apex portion so as to be in contact with and separated from one of the fixed contacts. <IMAGE>
46	푸시 버튼 스위치 및 푸시버튼 스위치용 가동접점체	KR1020000024569	2000-05-09	KR1020010020821A	2001-03-15	오노유따까; 이와마나오야; 야마가따다께오
PURPOSE: To provide high contact reliability and to improve operation feeling in an operation, by providing a fixed contact and a dome-like movable contact disposed on the fixed contact, and forming a protrusion contactable/separatable from the fixed contact in a part other than a dome-like top on the inner surface side of the movable contact. CONSTITUTION: A plurality of protrusions 5c are on an annular line in a part other than a dome-like top 5a on the inner surface side of the movable contact 5. When a stem 6 is pressed down, these protrusions 5c come into contact with a fixed contact 3, and therefore, the fixed contact 3 comes into contact with a movable contact 5 in a place without dust having tendency to accumulate at a central part 3a of the fixed contact 3. Therefore, this is stable in contact comparing with a structure where a top 5a directly comes into contact with the central part 3a of the fixed contact 3, and contact reliability is improved. Because the dome-like top 5a positioned inside the protrusion 5c also becomes movable during inversion, operation feeling during an operation does not exert bad effect.
47	푸쉬버튼스위치	KR1020010068099	2001-11-02	KR100483648B1	2005-04-18	아사다마코토
본 발명은 기판(2)상에 제작된 회로패턴(8)에 있어서의 스위치로서 기능하는 푸쉬버튼 스위치(1)에 있어서, 접촉불량의 확율을 저감시킨 푸쉬버튼스위치(1)를 제공하는것을 목적으로 한 것이며, 그 해결수단에 있어서, 기판(2)상에 형성된 하부전극(3)과, 상기 하부전극(3)의 위쪽을 덮는 돔형상의 상부전극(4)을 구비해서 이루어진 푸쉬버튼스위치(1)로서, 상기 하부전극(3)이 구멍 또는 오목한 부분(6)을 형성하고, 상기 상부전극(4)이 하부에 볼록한 볼록부분(6)을 형성하고, 상기 상부전극(4)에 압압력을 인가함으로써 상기 볼록부분(6)이 상기 구멍 또는 오목한 부분(5)의 둘레부분전극에 접촉하고, 상기 압압력을 해제함으로써 탄성력에 의해서 상기 상부전극(4)이 상기 하부전극(3)에서부터 떨어져나가는 것을 특징으로한 것이다.
48	푸쉬버튼스위치	KR1020010068099	2001-11-02	KR1020020037677A	2002-05-22	아사다마코토
PURPOSE: To provide a push button switch having reduced probability of contact failure. CONSTITUTION: For the push button switch comprising a lower electrode mounted on a base board, and a dome-shaped upper electrode covering the upside of the lower electrode, the lower electrode has a hole or a concave part, and the upper electrode has a convex part which is convex downward, and by impressing a pressing force to the upper electrode, the convex part touches with the peripheral electrode of the hole or the concave part, and by releasing the pressing force, the upper electrode disjoins from the lower electrode by an elastic force.

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