专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPS6333562B2 失效
公开(公告)号：JPS6333562B2
公开(公告)日：1988-07-06
申请号：JP7469478
申请日：1978-06-19
申请人： MITSUBISHI ELECTRIC CORP
发明人： KONDO KAZUMASA , OOTSUKA AKIRA
IPC分类号： F15B15/22 , H01H3/24

2. 发明专利

JPS6224890B2 失效
公开(公告)号：JPS6224890B2
公开(公告)日：1987-05-30
申请号：JP12881478
申请日：1978-10-17
申请人： MITSUBISHI ELECTRIC CORP
发明人： OOTSUKA AKIRA
IPC分类号： H01H33/34 , H01H3/24 , H01H33/30

3. 发明专利

JPS5553821A HYDRAULIC ACTUATOR 失效
公开(公告)号：JPS5553821A
公开(公告)日：1980-04-19
申请号：JP12881578
申请日：1978-10-17
申请人： MITSUBISHI ELECTRIC CORP
发明人： OOTSUKA AKIRA
IPC分类号： H01H33/34 , H01H3/24 , H01H33/30

4. 发明专利

JPS552828A OIL PRESSURE OPERATING DEVICE 失效
公开(公告)号：JPS552828A
公开(公告)日：1980-01-10
申请号：JP7469478
申请日：1978-06-19
申请人： MITSUBISHI ELECTRIC CORP
发明人： KONDOU KAZUMASA , OOTSUKA AKIRA
IPC分类号： F15B15/22 , H01H3/24
摘要： PURPOSE:To promote the initial speed of a piston and to simplify the structure and the processing and assembling works greatly for presenting an inexpensive price in a high-speed oil-pressure operating device for example to be used for an electric power breaker. CONSTITUTION:Inside an end-cover 27 of an oil cylinder 4 to close and open a breaker 1, a ring 28 is contained to be axially moved. To the end-cover 27, a high pressure oil passage 27a of a comparatively large diameter is provided to conduct the action of hlgh pressure oil 22 upon the end-face of the ring 28, while the ring 28 is provided with a hole 28a to be fitted with a piston projection 3b and a proper number of connecting holes 28b connected to a buffer chamber 23 on one end and faced to the inner end-face of the cover 27 on another end. When high pressure oil is supplied from an accumulator 5 through the passage 27a by the closing of the breaker 1, a piston 3 and the ring 28 are moved to the left, and oil is also sent into the buffer chamber 23 through connecting holes 28b. Thus, the piston 3 can be moved in a high velocity.

5. 发明专利

JP2504191B2 失效
公开(公告)号：JP2504191B2
公开(公告)日：1996-06-05
申请号：JP14245189
申请日：1989-06-05
申请人： MITSUBISHI ELECTRIC CORP
发明人： OOTSUKA AKIRA
IPC分类号： G06F12/14 , G06F13/36 , G06F13/38 , G06F21/24

6. 发明专利

JPS58146147A RADIO RELAYING SYSTEM 失效
公开(公告)号：JPS58146147A
公开(公告)日：1983-08-31
申请号：JP3011082
申请日：1982-02-24
申请人： MITSUBISHI ELECTRIC CORP
发明人： OOTSUKA AKIRA
IPC分类号： H04B7/15
摘要： PURPOSE:To attain multistage relaying with carriers of the same frequency, by providing a recording and reproducing means for a relay station and transmitting signals by giving a time difference between a relay stations of each stage, in the relaying of multistage. CONSTITUTION:In a transmission station 1, a transmission signal (signal from a microphone 11) is superimposed on a selection signal P1 and transmitted 4a from a transmitter 14. In a relay station 2a, a recorder 24 is made to the recording state through the reception of a selection signal P1 for the recording of the reception signals. When the transmission of a transmission station 1 is finished and the selection signal P1 is lost, the recorder 24 stops recording, rewinds tapes automatically and reproduces the content of recording from the position of start of recording. While the recorder is under reproduction, a transmitter 26 of the relay station 2a is started and transmits 4b the content of reproduction of the recorder 24.

7. 发明专利

JPS58143637A RADIO REPEATING SYSTEM 失效
公开(公告)号：JPS58143637A
公开(公告)日：1983-08-26
申请号：JP2661082
申请日：1982-02-19
申请人： MITSUBISHI ELECTRIC CORP
发明人： OOTSUKA AKIRA
IPC分类号： H04B7/15 , H04B7/24
摘要： PURPOSE:To eliminate the interference disturbance due to the same reception of the same electric wave, by setting a time difference among transmitting electric waves to be sent to plural repeaters. CONSTITUTION:The audio signal sent through a mike 16 is supplied to a modulator 11a and a sound recorder 13. At the same time, a selecting signal P1 is supplied to the modulator 11a from a generator 14a through a contact 12b, and the audio signal and an electric wave 4 modulated by the signal P1 are radiated from a transmitter 11b. Repeater stations 2a and 2b transmit audio signals to a modulator 23a via a receiver 20b and a demodulator 20a and at the same time discriminate the selecting signal by receivers 21a and 21b. A relay 22 is started as the receiver 21a extracts the signal P1, and then a contact 22a of the relay 22 is closed. Then an electric wave 5 is transmitted to a receiving station 3a from a transmitter 23b. When this repeating operation is over, an on-hook switch 15 is closed. As a result, the recorder 13 is reproduced and at the same time the contacts 12a and 12b are switched. Then the wave 4 which is modulated by a reproducing signal and a selecting signal P2 is transmitted. The station 2b performs a repeating action with detection of the signal P2.

8. 发明专利

JPS57105925A HYDRAULIC CYLINDER UNIT 失效
公开(公告)号：JPS57105925A
公开(公告)日：1982-07-01
申请号：JP18221280
申请日：1980-12-22
申请人： MITSUBISHI ELECTRIC CORP
发明人： OOTSUKA AKIRA
IPC分类号： H01H33/34 , F15B15/22

9. 发明专利

JPS55166821A BREAKER 失效
公开(公告)号：JPS55166821A
公开(公告)日：1980-12-26
申请号：JP7532579
申请日：1979-06-14
申请人： MITSUBISHI ELECTRIC CORP
发明人： OOTSUKA AKIRA
IPC分类号： H01H33/12

10. 发明专利

JP2539064B2 失效
公开(公告)号：JP2539064B2
公开(公告)日：1996-10-02
申请号：JP34107289
申请日：1989-12-27
申请人： MITSUBISHI ELECTRIC CORP
发明人： OOTSUKA AKIRA , YOSHIDA TOYOHIKO
IPC分类号： G06F13/28 , G06F15/78

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式