JPH11505091A - 均衡型二重折返しカスコード演算増幅器 - Google Patents
均衡型二重折返しカスコード演算増幅器Info
- Publication number
- JPH11505091A JPH11505091A JP8534021A JP53402196A JPH11505091A JP H11505091 A JPH11505091 A JP H11505091A JP 8534021 A JP8534021 A JP 8534021A JP 53402196 A JP53402196 A JP 53402196A JP H11505091 A JPH11505091 A JP H11505091A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- transistor
- gain
- current
- output
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/45—Differential amplifiers
- H03F3/45071—Differential amplifiers with semiconductor devices only
- H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
- H03F3/45179—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using MOSFET transistors as the active amplifying circuit
- H03F3/4521—Complementary long tailed pairs having parallel inputs and being supplied in parallel
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/30—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor
- H03F3/3066—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor the collectors of complementary power transistors being connected to the output
- H03F3/3067—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor the collectors of complementary power transistors being connected to the output with asymmetrical driving of the end stage
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/45—Differential amplifiers
- H03F3/45071—Differential amplifiers with semiconductor devices only
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/45—Differential amplifiers
- H03F3/45071—Differential amplifiers with semiconductor devices only
- H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
- H03F3/4508—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using bipolar transistors as the active amplifying circuit
- H03F3/45112—Complementary long tailed pairs having parallel inputs and being supplied in parallel
- H03F3/45121—Folded cascode stages
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/258—Indexing scheme relating to amplifiers the input of the amplifier has voltage limiting means
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/45—Indexing scheme relating to differential amplifiers
- H03F2203/45028—Indexing scheme relating to differential amplifiers the differential amplifier amplifying transistors are folded cascode coupled transistors
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/45—Indexing scheme relating to differential amplifiers
- H03F2203/45232—Two dif amps of the folded cascode type are paralleled at their input gates or bases
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/45—Indexing scheme relating to differential amplifiers
- H03F2203/45244—Indexing scheme relating to differential amplifiers the differential amplifier contains one or more explicit bias circuits, e.g. to bias the tail current sources, to bias the load transistors
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/45—Indexing scheme relating to differential amplifiers
- H03F2203/45281—One SEPP output stage being added to the differential amplifier
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/45—Indexing scheme relating to differential amplifiers
- H03F2203/45366—Indexing scheme relating to differential amplifiers the AAC comprising multiple transistors parallel coupled at their gates only, e.g. in a cascode dif amp, only those forming the composite common source transistor
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/45—Indexing scheme relating to differential amplifiers
- H03F2203/45508—Indexing scheme relating to differential amplifiers the CSC comprising a voltage generating circuit as bias circuit for the CSC
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/45—Indexing scheme relating to differential amplifiers
- H03F2203/45552—Indexing scheme relating to differential amplifiers the IC comprising clamping means, e.g. diodes
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/45—Indexing scheme relating to differential amplifiers
- H03F2203/45568—Indexing scheme relating to differential amplifiers the IC comprising one or more diodes as shunt to the input leads
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.高い及び低い電圧供給線(Vcc、Vee)と、 電流が差動入力信号によって制御されるように接続された少なくとも1つの差 動入力トランジスタ対と、前記電圧供給線の一方から前記入力トランジスタに差 動電流を供給するように接続された電流源と、前記トランジスタと前記電圧供給 線の他方との間に接続された1対の入力抵抗と、を有する入力段(4)と、 利得段電圧出力を提供し前記差動入力信号の変化が前記入力抵抗を介して前記 利得段電圧出力のそれに対応する変化を生じさせるように前記入力トランジスタ 対に接続された少なくとも1対のカスコード利得トランジスタを有するカスコー ド利得段(6)と、 出力ノードと、 前記出力ノードと前記利得段出力とを相互接続し、前記利得段電圧出力の変化 に応答して変動する出力電流を前記出力ノードにおいて生じるトランジスタ・抵 抗回路を含む、出力段(8)と、 前記少なくとも1対の利得トランジスタの電圧レベルを均衡させ入力信号電圧 オフセットを禁止するように接続された電圧均衡回路(R1、Q3、Q5、R1 0、Q4、Q21)と、 を備えることを特徴とする演算増幅器。 2.前記電圧均衡回路は、前記少なくとも1つの利得トランジスタ対のそれぞ れにおけるトランジスタの一方の電圧レベルを前記少なくとも1つの利得トラン ジスタ対の他方のトランジスタの電圧レベルにシフトさせるように接続されたレ ベル・シフト回路を含むことを特徴とする請求項1記載の増幅器。 3.前記出力段は、エミッタが前記電圧供給線のそれぞれに接続されコレクタ が共に前記出力ノードに接続された反対の導電形の1対の出力バイポーラ・トラ ンジスタ(Q20、Q21)と、前記出力トランジスタのベースに接続されてお り前記利得段電圧出力の変化に応答して前記出力トランジスタの一方をバイアス しそれを流れる電流を増加させ前記出力トランジスタの他方をバイアスしそれを 流れる電流を減少させるトランジスタ・抵抗バイアス回路と、を含み、前記レベ ル・シフト回路は、前記利得段出力と前記出力トランジスタの一方のベースとの 間に接続されたレベル・シフト抵抗(R10)を含むことを特徴とする請求項2 記載の増幅器。 4.前記入力段は、 前記差動入力信号を受け取るように接続された制御電極と電流回路とを有する 第1の導電形の第1の差動トランジスタ対(Q1、Q2)と、 前記電圧供給線の一方から前記第1の差動対トランジスタの電流回路に差動電 流を供給するように接続された第1の電流源(Q8)と、 前記第1の差動対トランジスタの電流回路と前記電圧供給線の他方との間に接 続された第1の対の入力抵抗(R1、R2)と、 前記差動入力信号を受け取るように接続された制御電極と電流回路とを有する 逆の導電形の第2の差動トランジスタ対(Q6、Q7)と、 前記電圧供給線の他方から前記第2の差動対トランジスタの電流回路に差動電 流を供給するように接続された第2の電流源(Q9)と、 前記第2の差動対トランジスタの電流回路と前記電圧供給線の前記一方との間 に接続された第2の対の入力抵抗(R6、R7)と、 を備えており、前記利得段は、 前記利得段出力を提供し前記差動入力信号の変化が前記入力抵抗を介して前記 利得段出力にそれに対応する変化を生じさせるように前記第1及び第2の対の入 力抵抗に接続された第1及び第2の折返しカスコード利得トランジスタ対を備え ることを特徴とする請求項1記載の増幅器。 5.前記電圧均衡回路は、前記第1及び第2の利得トランジスタ対のそれぞれ におけるトランジスタの一方の電圧レベルを前記利得トランジスタ対の他方のト ランジスタの電圧レベルにシフトさせるように接続されたレベル・シフト回路を 含むことを特徴とする請求項4記載の増幅器。 6.前記第1の対の利得トランジスタは、同じ導電形の第1(Q12)及び第 2(Q13)のバイポーラ・トランジスタから成り、前記第2の対の利得トラン ジスタは、前記第1の対の利得トランジスタとは逆の導電形でありベースが相互 に接続された第3(Q5)及び第4(Q10)のバイポーラ・トランジスタから 成り、前記第1及び第3の利得トランジスタのコレクタは相互に接続され、第2 の及び第4の利得トランジスタのコレクタは相互に接続され、前記利得段出力は 、前記第2及び第4の利得トランジスタのコレクタから取られ、この増幅器は、 更に、 前記第1及び第3の利得トランジスタを流れる電流をある範囲の差動入力信号 では実質的に等しく維持するように接続され、前記第1の利得トランジスタ回路 のコレクタに接続されたベースと、前記第3の利得トランジスタのベースに接続 されたエミッタと、前記一方の電圧供給線と回路において接続されたコレクタと を備えた電流等化回路を備えており、 前記レベル・シフト回路は、前記第2及び第4の利得トランジスタのコレクタ 電圧と前記第1及び第3の利得トランジスタのコレクタ電圧とを均衡させるよう に接続されていることを特徴とする請求項5記載の増幅器。 7.前記第1及び第3の利得トランジスタのコレクタ電圧は、前記第1の対の 入力抵抗の一方の両端の電圧と前記第1の利得トランジスタと前記電流等化回路 のバイポーラ・トランジスタとのベース・エミッタ電圧との和に実質的に等しく 、前記レベル・シフト回路は、ベース・エミッタ電圧を生じるように接続されて いる出力バイポーラ・トランジスタ(Q21)と、前記レベル・シフト抵抗の両 端の電圧が前記一方の入力抵抗の両端の電圧と実質的に等しくなるように前記レ ベル・シフト抵抗を流れる電流を駆動するように接続された電流源(Q11)と 、前記第2及び第4の利得トランジスタのコレクタの間にそのベース・エミッタ 回路が接続されていることにより前記第2及び第4の利得トランジスタのコレク タ電圧は前記出力及びレベル・シフトトランジスタのベース・エミッタ電圧と前 記レベル・シフト抵抗の両端の電圧との和に実質的に等しくなっているレベル・ シフト・バイポーラ・トランジスタ(D1)と、を備えることを特徴とする請求 項6記載の増幅器。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/439,970 US5523718A (en) | 1994-08-03 | 1995-05-12 | Balanced double-folded cascode operational amplifier |
US08/439,970 | 1995-05-12 | ||
PCT/US1995/011075 WO1996036108A1 (en) | 1995-05-12 | 1995-08-31 | Balanced double-folded cascode operational amplifier |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH11505091A true JPH11505091A (ja) | 1999-05-11 |
JP3527510B2 JP3527510B2 (ja) | 2004-05-17 |
Family
ID=23746884
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53402196A Expired - Lifetime JP3527510B2 (ja) | 1995-05-12 | 1995-08-31 | 均衡型二重折返しカスコード演算増幅器 |
Country Status (6)
Country | Link |
---|---|
US (1) | US5523718A (ja) |
EP (1) | EP0824783B1 (ja) |
JP (1) | JP3527510B2 (ja) |
AU (1) | AU3462895A (ja) |
DE (1) | DE69529094T2 (ja) |
WO (1) | WO1996036108A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011015367A (ja) * | 2009-07-06 | 2011-01-20 | New Japan Radio Co Ltd | 演算増幅器 |
JP2011023832A (ja) * | 2009-07-13 | 2011-02-03 | New Japan Radio Co Ltd | 演算増幅器 |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5673000A (en) * | 1996-01-05 | 1997-09-30 | Rockford Corporation | Dynamically invariant AB linear operation amplifier |
US5880637A (en) * | 1997-05-05 | 1999-03-09 | Motorola, Inc. | Low-power operational amplifier having fast setting time and high voltage gain suitable for use in sampled data systems |
US5963085A (en) * | 1998-05-14 | 1999-10-05 | National Semiconductor Corporation | Input to output stage interface with virtual ground circuitry for rail to rail comparator |
US6066944A (en) * | 1999-02-18 | 2000-05-23 | National Semiconductor Corporation | High speed current mirror circuit and method |
US6150883A (en) * | 1999-07-22 | 2000-11-21 | Burr-Brown Corporation | Rail-to-rail input/output operational amplifier and method |
US6605993B2 (en) * | 2000-05-16 | 2003-08-12 | Fujitsu Limited | Operational amplifier circuit |
US6583669B1 (en) | 2002-04-08 | 2003-06-24 | National Semiconductor Corporation | Apparatus and method for a compact class AB turn-around stage with low noise, low offset, and low power consumption |
US6924701B1 (en) | 2002-09-03 | 2005-08-02 | Ikanos Communications, Inc. | Method and apparatus for compensating an amplifier |
US7023281B1 (en) | 2004-07-23 | 2006-04-04 | Analog Devices, Inc. | Stably-biased cascode networks |
CN103326673B (zh) * | 2012-03-23 | 2016-03-09 | 禾瑞亚科技股份有限公司 | 具强化回转率的折叠式串接放大器 |
TWI434509B (zh) * | 2012-03-23 | 2014-04-11 | Egalax Empia Technology Inc | 具強化迴轉率之折疊式串接放大器 |
JP2013211692A (ja) * | 2012-03-30 | 2013-10-10 | Fujitsu Ltd | オペアンプ、アナログ演算回路、及び、アナログデジタルコンバータ |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5943614A (ja) * | 1982-09-03 | 1984-03-10 | Hitachi Ltd | 差動増幅回路 |
JPS60184314U (ja) * | 1984-05-16 | 1985-12-06 | 株式会社日立製作所 | 差動増幅回路 |
JPS61248608A (ja) * | 1985-04-26 | 1986-11-05 | Asahi Micro Syst Kk | 差動増幅器 |
JPH02253708A (ja) * | 1989-03-28 | 1990-10-12 | Yokogawa Electric Corp | 演算増幅器 |
JPH03274911A (ja) * | 1990-03-26 | 1991-12-05 | Hitachi Ltd | 演算増幅器 |
JPH05191162A (ja) * | 1991-09-18 | 1993-07-30 | Hitachi Ltd | 演算増幅器および回線終端装置 |
JPH06237128A (ja) * | 1992-10-30 | 1994-08-23 | Sgs Thomson Microelectron Inc | レール対レール同相入力範囲を有する差動出力増幅器入力段 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5742208A (en) * | 1980-08-28 | 1982-03-09 | Sutatsukusu Kogyo Kk | Amplifying circuit for direct coupling circuit |
US4463319A (en) * | 1982-08-02 | 1984-07-31 | General Motors Corporation | Operational amplifier circuit |
US4687984A (en) * | 1984-05-31 | 1987-08-18 | Precision Monolithics, Inc. | JFET active load input stage |
US4918398A (en) * | 1989-02-10 | 1990-04-17 | North American Philips Corporation, Signetics Division | Differential amplifier using voltage level shifting to achieve rail-to-rail input capability at very low power supply voltage |
US5140280A (en) * | 1991-08-30 | 1992-08-18 | Motorola, Inc. | Rail-to-rail output stage of an operational amplifier |
US5293136A (en) * | 1992-09-17 | 1994-03-08 | Sgs-Thomson Microelectronics, Inc. | Two-stage rail-to-rail operational amplifier |
US5294892A (en) * | 1992-09-17 | 1994-03-15 | Sgs-Thomson Microelectronics, Inc. | Two-stage rail-to-rail class AB operational amplifier |
-
1995
- 1995-05-12 US US08/439,970 patent/US5523718A/en not_active Expired - Lifetime
- 1995-08-31 EP EP95931042A patent/EP0824783B1/en not_active Expired - Lifetime
- 1995-08-31 AU AU34628/95A patent/AU3462895A/en not_active Abandoned
- 1995-08-31 JP JP53402196A patent/JP3527510B2/ja not_active Expired - Lifetime
- 1995-08-31 WO PCT/US1995/011075 patent/WO1996036108A1/en active IP Right Grant
- 1995-08-31 DE DE69529094T patent/DE69529094T2/de not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5943614A (ja) * | 1982-09-03 | 1984-03-10 | Hitachi Ltd | 差動増幅回路 |
JPS60184314U (ja) * | 1984-05-16 | 1985-12-06 | 株式会社日立製作所 | 差動増幅回路 |
JPS61248608A (ja) * | 1985-04-26 | 1986-11-05 | Asahi Micro Syst Kk | 差動増幅器 |
JPH02253708A (ja) * | 1989-03-28 | 1990-10-12 | Yokogawa Electric Corp | 演算増幅器 |
JPH03274911A (ja) * | 1990-03-26 | 1991-12-05 | Hitachi Ltd | 演算増幅器 |
JPH05191162A (ja) * | 1991-09-18 | 1993-07-30 | Hitachi Ltd | 演算増幅器および回線終端装置 |
JPH06237128A (ja) * | 1992-10-30 | 1994-08-23 | Sgs Thomson Microelectron Inc | レール対レール同相入力範囲を有する差動出力増幅器入力段 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011015367A (ja) * | 2009-07-06 | 2011-01-20 | New Japan Radio Co Ltd | 演算増幅器 |
JP2011023832A (ja) * | 2009-07-13 | 2011-02-03 | New Japan Radio Co Ltd | 演算増幅器 |
Also Published As
Publication number | Publication date |
---|---|
WO1996036108A1 (en) | 1996-11-14 |
JP3527510B2 (ja) | 2004-05-17 |
EP0824783A1 (en) | 1998-02-25 |
US5523718A (en) | 1996-06-04 |
EP0824783A4 (en) | 1999-08-04 |
EP0824783B1 (en) | 2002-12-04 |
DE69529094D1 (de) | 2003-01-16 |
DE69529094T2 (de) | 2003-05-08 |
AU3462895A (en) | 1996-11-29 |
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