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101. 发明专利

JP2001086023A TRANSMITTER-RECEIVER 失效
公开(公告)号：JP2001086023A
公开(公告)日：2001-03-30
申请号：JP26370099
申请日：1999-09-17
申请人： TOSHIBA CORP
发明人： ISHIDA MASAAKI , KANEKIYO YASUHIRO
IPC分类号： H04B1/38
摘要： PROBLEM TO BE SOLVED: To provide a transmitter-receiver capable of being mass-produced at a low cost. SOLUTION: This transmitter-receiver has a transmission circuit 12 having a mixer 123 mixing a transmission signal and a local signal, a local oscillation circuit 14 generating the local signal and a reception circuit 13, having a mixer 133 mixing a reception signal and the local signal. The transmission circuit 12 is formed in the area of one end side of a common substrate 11, where a ground electrode is formed on one face, the reception circuit 13 is formed in the area of the other end side and the local oscillation circuit 14 is formed in a center area.

102. 发明专利

JP2000103119A IMAGE FORMING APPARATUS 失效
公开(公告)号：JP2000103119A
公开(公告)日：2000-04-11
申请号：JP29143298
申请日：1998-09-29
申请人： RICOH KK
发明人： NAKAJIMA TOMOHIRO , EMA HIDETOSHI , ISHIDA MASAAKI , ITO TATSUYA , ITO SATORU
IPC分类号： B41J29/00 , B41J2/44 , G02B26/10 , G03G15/00
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus wherein a scanning substrate having a scanning system mounted thereon can be detached without decomposing the body of the image forming apparatus, thereby improving the workability. SOLUTION: In an image forming apparatus 1, an engine control board 12, an optical scanning device board 13, an interface board 14 and a power source board 15 are detachably and perpendicularly attached to a mother board 11 which is vertically provided in a housing 2 of the apparatus. A connection terminal section 105 to be inserted into a connector 11a of the mother board 11 is formed on each of the boards 12-15 so that the connection is established by inserting the connection terminal section 105 into the connector 11a. A light emitting section 101 which is an optical scanning system of the image forming apparatus 1, a polygon mirror section 102, a lens section 103, a synchronism detecting section 104 and various electric parts are substantially integrally provided to the optical scanning device board 13. Working for upgrading the apparatus 1 to be in an upper grade or recovering it can be readily executed by detaching or attaching the optical scanning device board 13 from or to the mother board 11.

103. 发明专利

JPH11298078A SEMICONDUCTOR LASER CONTROL DEVICE 失效
公开(公告)号：JPH11298078A
公开(公告)日：1999-10-29
申请号：JP10430998
申请日：1998-04-15
申请人： RICOH KK
发明人： ISHIDA MASAAKI
IPC分类号： H01S5/068 , H01S5/026 , H01S3/133
摘要： PROBLEM TO BE SOLVED: To avoid instability of initial operations due to reset signals at the time of initial operations, provided that the overall structure is realized by a single chip. SOLUTION: A semiconductor laser control device is integrated into a one- chip integrated circuit as a whole, including a start up part 28 and a reset part 32. A start-up protection part 33 for inhibiting acceptance of stopping operations by the reset part 32 at the time of initial operations is provided. In this way, at initial operations, even if a disturbance such as reset signals of the reset part 32 is input the initial start operation signals output from the start up protecting part 33 are not changed. Accordingly, initial operations are performed with stability.

104. 发明专利

JPH11298077A SEMICONDUCTOR LASER CONTROLLER 失效
公开(公告)号：JPH11298077A
公开(公告)日：1999-10-29
申请号：JP10430898
申请日：1998-04-15
申请人： RICOH KK
发明人： ISHIDA MASAAKI
IPC分类号： H01S5/068 , H01S3/133
摘要： PROBLEM TO BE SOLVED: To adequately set a desired offset current by constituting an offset light setting unit so that the offset current is controlled and adjusted according to an external control potential given from the outside of an integrated circuit. SOLUTION: An operational amplifier 32 to a positive input, of which a potential Voff of an offset current setting signal is inputted through a resistance R2 from an external control potential outside, instead of a reference voltage Vref, is provided at the base of a transistor Q1 and controls, so that the potential Voff of the offset current setting signal is equal to the emitter potential of the transistor Q1. The externally attached resistance R1 and external input means of the offset current setting signal constitute a controlled variable adjuster 33. By variably adjusting the resistance value of the externally attached resistance R1 and finely by variably adjusting the offset current setting signal potential Voff given from the outside, the offset current can be adjusted freely, and the desired offset current can be adequately set.

105. 发明专利

JP2957903B2 Environmental testing device with a sheet with door 失效
公开(公告)号：JP2957903B2
公开(公告)日：1999-10-06
申请号：JP26450994
申请日：1994-10-03
申请人：タバイエスペック株式会社
发明人： ISHIDA MASAAKI , ISHII NAOKI , UENO SADAO
IPC分类号： G01R31/26 , F27D1/18 , G01N33/00 , G01R31/00 , G01R31/28

106. 发明专利

JPH11207937A METHOD AND APPARATUS FOR CLEANING PRESS PLATE 失效
公开(公告)号：JPH11207937A
公开(公告)日：1999-08-03
申请号：JP966298
申请日：1998-01-21
申请人： KOMORI PRINTING MACH
发明人： SUGIYAMA HIROYUKI , ISHIDA MASAAKI
IPC分类号： B41F31/20 , B41F35/02
摘要： PROBLEM TO BE SOLVED: To alleviate an operator's operating load by improving a productivity and reducing a production cost and a printing material consumption amount. SOLUTION: A 'cleaning' function is selected in a menu screen of a trial printing system, and number of leaning sheets is set (step 104). In the system, when an ink removing operation is finished (step 107), or when a checked result of number of removing sheets in a step 105 is zero, an inking roller set to an attached state to a press plate so far is set to a released state, and printing of the set number of the cleaning sheets is started in the state that a calling operation of an ink transfer roller remains stopped (step 108). Thus, inks held in the plate, a blanket and a water supply roller group are transferred to a printing sheet, and all is removed.

107. 发明专利

JPH11207930A METHOD FOR CONTROLLING INK FILM THICKNESS AND INK SUPPLYING DEVICE 失效
公开(公告)号：JPH11207930A
公开(公告)日：1999-08-03
申请号：JP958998
申请日：1998-01-21
申请人： KOMORI PRINTING MACH
发明人： ISHIDA MASAAKI
IPC分类号： B41F31/02 , B41F33/00
摘要： PROBLEM TO BE SOLVED: To alleviate an operator's operating load by improving a productivity without a wasteful work and reducing a production cost and a printing material consumption amount. SOLUTION: When a start of an operation of pre-inking 1 is designated (104), whether a state to be of each unit relating to a printer at that time coincides with an actual state or not is checked (105). In the case of no coincidence, a display color of display unit of 'pre-inking 1' is changed (110), and a transfer to the operation of the pre-inking 1 is inhibited. If setting conditions are changed so that all coincide (112), the display color of the unit of the 'pre- inking 1' is returned to its original, and the transfer to the operation of the pre-inking 1 is allowed.

108. 发明专利

JP2898813B2 失效
公开(公告)号：JP2898813B2
公开(公告)日：1999-06-02
申请号：JP2462292
申请日：1992-01-14
申请人： RIKOO KK
发明人： EMA HIDETOSHI , ISHIDA MASAAKI
IPC分类号： G11B7/1263 , G11B7/1267 , H01S5/00 , H01S5/068 , H04B10/07 , H04B10/293 , H04B10/564 , H04B10/572 , H01S3/18 , G11B7/125 , H04B10/04 , H04B10/06 , H04B10/14

109. 发明专利

JPH1197787A SEMICONDUCTOR LASER CONTROLLER 失效
公开(公告)号：JPH1197787A
公开(公告)日：1999-04-09
申请号：JP25950197
申请日：1997-09-25
申请人： RICOH KK
发明人： EMA HIDETOSHI , ISHIDA MASAAKI
IPC分类号： H01S5/068 , H01S3/133
摘要： PROBLEM TO BE SOLVED: To protect an integrated circuit or a semiconductor laser in safety against fluctuation of power supply voltage by ensuring turn off state of the semiconductor laser not only when the power supply voltage is low but also when it is high at the time of turn on power. SOLUTION: Since a start-up section 35 permits start of operation only when the power supply voltage is within a desired potential range, optical output of a semiconductor laser 1 is turned off not only before the power supply voltage reaches a desired potential level bur after the power supply voltage exceeds over the desired potential range at the time of turn on power. Since the semiconductor laser 1 enters into operating state only when the power supply voltage is within a desired potential range, the semiconductor laser 1 is protected against deterioration or damage and safety is enhanced by avoiding such a trouble as the semiconductor laser 1 emits light inadvertently.

110. 发明专利

JPH1197786A SEMICONDUCTOR LASER CONTROLLER 失效
公开(公告)号：JPH1197786A
公开(公告)日：1999-04-09
申请号：JP25950097
申请日：1997-09-25
申请人： RICOH KK
发明人： ISHIDA MASAAKI , EMA HIDETOSHI
IPC分类号： H01S5/068 , H01S3/133
摘要： PROBLEM TO BE SOLVED: To protect an integrated circuit or a semiconductor laser in safety against transient operation at the time of turn on power, or the like, caused by an error amplifying section included in an integrated opto-electric negative feedback loop. SOLUTION: An integrated circuit or a semiconductor laser is protected in safety against transient operation at the time of turn on power, or the like, caused by an error amplifying section 23 by turning off the optical output from a semiconductor laser at a forced LD off section 56 until the power supply voltage Vcc reaches a predetermined level at the time of turn on power and the integrated circuit enters into a predetermined operating state. In this regard, operational stability is ensured when forced turn off of the semiconductor laser is released by suppressing saturation of the error amplifying section 23 at a voltage limit section 57.

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