JP2010011646A - 電力変換装置 - Google Patents
電力変換装置 Download PDFInfo
- Publication number
- JP2010011646A JP2010011646A JP2008168490A JP2008168490A JP2010011646A JP 2010011646 A JP2010011646 A JP 2010011646A JP 2008168490 A JP2008168490 A JP 2008168490A JP 2008168490 A JP2008168490 A JP 2008168490A JP 2010011646 A JP2010011646 A JP 2010011646A
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- line
- power
- diode
- supply line
- 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
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
- H02M7/02—Conversion of AC power input into DC power output without possibility of reversal
- H02M7/04—Conversion of AC power input into DC power output without possibility of reversal by static converters
- H02M7/12—Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/21—Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/217—Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M7/2173—Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only in a biphase or polyphase circuit arrangement
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
- H02M7/02—Conversion of AC power input into DC power output without possibility of reversal
- H02M7/04—Conversion of AC power input into DC power output without possibility of reversal by static converters
- H02M7/12—Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M5/00—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/02—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC
- H02M5/04—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters
- H02M5/22—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M5/275—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M5/293—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M5/00—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/40—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC
- H02M5/42—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters
- H02M5/44—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters using discharge tubes or semiconductor devices to convert the intermediate DC into AC
- H02M5/453—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters using discharge tubes or semiconductor devices to convert the intermediate DC into AC using devices of a triode or transistor type requiring continuous application of a control signal
- H02M5/458—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters using discharge tubes or semiconductor devices to convert the intermediate DC into AC using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
- H02M7/02—Conversion of AC power input into DC power output without possibility of reversal
- H02M7/04—Conversion of AC power input into DC power output without possibility of reversal by static converters
- H02M7/12—Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/21—Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/217—Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M7/219—Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only in a bridge configuration
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0006—Arrangements for supplying an adequate voltage to the control circuit of converters
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Rectifiers (AREA)
- Inverter Devices (AREA)
Abstract
【解決手段】コンデンサCr,Cs,Ctは入力線ACLr,ACLs,ACLtの相互間に介在する。クランプコンデンサCc1は直流電源線L1,L2の間に接続される。電流型コンバータ1はスイッチ素子Sxp,Sxn(但し、xはr,s,tを代表する)。スイッチ素子Sxp,Sxnはそれぞれダイオードとトランジスタを備えている。そして、いずれのダイオードもアノードが直流電源線L2側にカソードが直流電源線L1側に接続される。いずれのトランジスタもダイオードと直列に接続される。いずれのトランジスタもノーマリーオン型のトランジスタである。
【選択図】図1
Description
図1は第1の実施の形態に係る直接形電力変換装置の概念的な構成の一例を示す。本直接形電力変換装置は、複数の入力線ACLr,ACLs,ACLtと、リアクトルLr,Ls,Ltと、コンデンサCr,Cs,Ctと、電流形コンバータ1と、直流電源線L1,L2と、クランプ回路2と、電圧形インバータ3と、複数の出力線ACLu,ACLv,ACLwとを備えている。
図6は第2の実施の形態に係る直接形電力変換装置の概念的な構成の一例を示す。図1に示す直接形電力変換装置と比較して、制御部4を更に備えている。
図8は第3の実施の形態に係る直接形電力変換装置の概念的な構成の一例を示す。但し、図8においてはクランプ回路2よりも後段を省略して示している。図1に示す直接形電力変換装置と比較して抵抗R3,R4、スイッチS1,S2を更に備えている。
3 電圧形インバータ
ACLr,ACLs,ACLt 入力線
ACLu,ACLv,ACLw 出力線
Cc1,Cc2 クランプコンデンサ
Cr,Cs,Ct コンデンサ
Drp,Dsp,Dtp,Drn,Dsn,Dtn 高速ダイオード
Trp,Tsp,Ttp,Trn,Tsn,Ttn,Tup,Tvp,Twp,Tun,Tvn,Twn トランジスタ
Claims (4)
- 相互間に多相交流電圧が印加される複数の入力線(ACLr,ACLs,ACLt)と、
前記複数の入力線の相互間に介在する複数のコンデンサ(Cr,Cs,Ct)と、
第1の直流電源線(L1)と、
前記第1の直流電源線よりも低い電位が印加される第2の直流電源線(L2)と、
前記複数の入力線の各々に対応して設けられ、アノードが対応する一の前記入力線側に、カソードが前記第1の直流電源線側にそれぞれ接続された第1のダイオード(Drp,Dsp,Dtp)と、アノードが前記第2の直流電源線側に、カソードが対応する前記一の前記入力線側にそれぞれ接続された第2のダイオード(Drn,Dsn,Dtn)と、前記複数の入力線の各々に対応して設けられ、外部からの信号(SSrp,SSrn;SSsp,SSsn;SStp,SStn)に基づいて、対応する前記一の前記入力線と前記第1の直流電源線との間の前記第1のダイオードを介した導通/非導通、及び対応する前記一の前記入力線と前記第2の直流電源線との間の前記第2ダイオードを介した導通/非導通を選択し、前記信号を受け取らない状態で、対応する前記一の前記入力線を前記第1及び前記第2の直流電源線と導通させる、スイッチ部(Trp,Tsp,Ttp,Trn,Tsn,Ttn)と、を有するコンバータ(1)と、
前記第1及び前記第2の直流電源線の間で接続されるクランプコンデンサ(Cc1,Cc2)と
を備える、電力変換装置。 - 前記スイッチ部(Trp,Tsp,Ttp,Trn,Tsn,Ttn)は接合型電界効果トランジスタを有する、請求項1に記載の電力変換装置。
- アノードが前記第1の直流電源線(L1)側で、カソードが前記第2の直流電源線(L2)側に位置し、前記クランプコンデンサと直列に接続された第3のダイオード(D1)と、
複数の出力線(ACLu,ACLv,ACLw)と、
一の前記出力線と、前記第1の直流電源線との間の導通/非導通を選択するハイアーム側スイッチ素子(Sup,Svp,Swp)と、前記一の前記出力線と、前記第2の直流電源線との間の導通/非導通を選択するローアーム側スイッチ素子(Sun,Svn,Swn)とを有するインバータ(3)と
を更に備える、請求項1又は2に記載の電力変換装置。 - 前記ハイアーム側スイッチ素子(Sup,Svp,Swp)及び前記ローアーム側スイッチ素子(Sun,Svn,Swn)は絶縁ゲートバイポーラトランジスタを有する、請求項3に記載の電力変換装置。
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008168490A JP4375489B1 (ja) | 2008-06-27 | 2008-06-27 | 電力変換装置 |
| PCT/JP2009/059999 WO2009157276A1 (ja) | 2008-06-27 | 2009-06-01 | 電力変換装置 |
| CN2009801241816A CN102077451B (zh) | 2008-06-27 | 2009-06-01 | 电力转换装置 |
| EP09769986.2A EP2299583B1 (en) | 2008-06-27 | 2009-06-01 | Electric power conversion device |
| US13/001,096 US9712076B2 (en) | 2008-06-27 | 2009-06-01 | Power converter with clamp capacitor on DC power supply line |
| KR1020107026541A KR20100134134A (ko) | 2008-06-27 | 2009-06-01 | 전력 변환 장치 |
| KR1020127031852A KR20120137519A (ko) | 2008-06-27 | 2009-06-01 | 전력 변환 장치 |
| AU2009263526A AU2009263526B2 (en) | 2008-06-27 | 2009-06-01 | Power converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008168490A JP4375489B1 (ja) | 2008-06-27 | 2008-06-27 | 電力変換装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP4375489B1 JP4375489B1 (ja) | 2009-12-02 |
| JP2010011646A true JP2010011646A (ja) | 2010-01-14 |
Family
ID=41444346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2008168490A Active JP4375489B1 (ja) | 2008-06-27 | 2008-06-27 | 電力変換装置 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US9712076B2 (ja) |
| EP (1) | EP2299583B1 (ja) |
| JP (1) | JP4375489B1 (ja) |
| KR (2) | KR20100134134A (ja) |
| CN (1) | CN102077451B (ja) |
| AU (1) | AU2009263526B2 (ja) |
| WO (1) | WO2009157276A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11807758B2 (en) * | 2020-01-28 | 2023-11-07 | Jnc Corporation | Siloxane polymer and method of producing siloxane polymer |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2953662B1 (fr) * | 2009-12-03 | 2011-11-18 | Schneider Toshiba Inverter | Convertisseur de puissance a source de courant utilisant des transistors a effet de champ normalement fermes |
| JP5749638B2 (ja) * | 2011-12-08 | 2015-07-15 | アイダエンジニアリング株式会社 | プレス機械の電源装置 |
| JP5429316B2 (ja) * | 2012-03-02 | 2014-02-26 | ダイキン工業株式会社 | インダイレクトマトリックスコンバータ |
| JP5533945B2 (ja) * | 2012-06-15 | 2014-06-25 | 株式会社安川電機 | 電力変換装置 |
| AU2013321021B2 (en) * | 2012-09-27 | 2015-12-24 | Daikin Industries,Ltd. | Direct AC Power Converter |
| US9452070B2 (en) | 2012-10-31 | 2016-09-27 | Covidien Lp | Methods and systems for increasing a density of a region of a vascular device |
| US20140156099A1 (en) * | 2012-12-05 | 2014-06-05 | Cummins Power Generation, Inc. | Generator power systems with active and passive rectifiers |
| KR101985079B1 (ko) * | 2016-07-04 | 2019-05-31 | 숭실대학교산학협력단 | 전기자동차용 캐스코드 컨버터 및 그 구동방법 |
| EP3726719A1 (en) * | 2019-04-15 | 2020-10-21 | Infineon Technologies Austria AG | Power converter and power conversion method |
| US11394264B2 (en) | 2020-01-21 | 2022-07-19 | Itt Manufacturing Enterprises Llc | Motor assembly for driving a pump or rotary device with a low inductance resistor for a matrix converter |
| US11451156B2 (en) | 2020-01-21 | 2022-09-20 | Itt Manufacturing Enterprises Llc | Overvoltage clamp for a matrix converter |
| WO2022070867A1 (ja) * | 2020-09-30 | 2022-04-07 | ダイキン工業株式会社 | 電力変換装置 |
| CN115037168A (zh) * | 2021-02-25 | 2022-09-09 | 精工爱普生株式会社 | 整流电路以及受电控制装置 |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2903863B2 (ja) * | 1992-05-29 | 1999-06-14 | 三菱電機株式会社 | インバータ装置 |
| CN1040272C (zh) * | 1995-03-15 | 1998-10-14 | 松下电工株式会社 | 逆变装置 |
| SE510404C2 (sv) | 1995-11-03 | 1999-05-17 | Ericsson Telefon Ab L M | Anordning och förfaranden för att mata energi från en växelspänningskälla |
| JPH09266695A (ja) * | 1996-03-28 | 1997-10-07 | Mitsubishi Electric Corp | 周波数変換装置 |
| US5943223A (en) * | 1997-10-15 | 1999-08-24 | Reliance Electric Industrial Company | Electric switches for reducing on-state power loss |
| CN2415540Y (zh) * | 2000-01-24 | 2001-01-17 | 南京航空航天大学 | 零电压零电流开关的三电平直流变换器 |
| JP4501144B2 (ja) * | 2000-04-28 | 2010-07-14 | サンケン電気株式会社 | Ac−dcコンバータ |
| US20050040792A1 (en) * | 2003-08-18 | 2005-02-24 | Rajendran Nair | Method & apparatus for charging, discharging and protection of electronic battery cells |
| DE102004035799A1 (de) * | 2004-07-23 | 2006-03-16 | Siemens Ag | Frequenzumrichter mit einem kondensatorlosen Zwischenkreis |
| JP3772898B2 (ja) * | 2004-09-08 | 2006-05-10 | ダイキン工業株式会社 | 多相電流供給回路及び駆動装置 |
| US7148660B2 (en) * | 2004-09-30 | 2006-12-12 | General Electric Company | System and method for power conversion using semiconductor switches having reverse voltage withstand capability |
| US7492616B2 (en) | 2005-03-25 | 2009-02-17 | Lineage Power Corporation | Modulation controller, method of controlling and three phase converter system employing the same |
| US8144149B2 (en) | 2005-10-14 | 2012-03-27 | Via Technologies, Inc. | System and method for dynamically load balancing multiple shader stages in a shared pool of processing units |
| JP4049189B2 (ja) | 2006-04-24 | 2008-02-20 | ダイキン工業株式会社 | 直接形交流電力変換装置 |
| JP2009117613A (ja) * | 2007-11-06 | 2009-05-28 | Toshiba Corp | 半導体装置 |
-
2008
- 2008-06-27 JP JP2008168490A patent/JP4375489B1/ja active Active
-
2009
- 2009-06-01 EP EP09769986.2A patent/EP2299583B1/en active Active
- 2009-06-01 CN CN2009801241816A patent/CN102077451B/zh active Active
- 2009-06-01 AU AU2009263526A patent/AU2009263526B2/en active Active
- 2009-06-01 KR KR1020107026541A patent/KR20100134134A/ko not_active Ceased
- 2009-06-01 KR KR1020127031852A patent/KR20120137519A/ko not_active Withdrawn
- 2009-06-01 WO PCT/JP2009/059999 patent/WO2009157276A1/ja not_active Ceased
- 2009-06-01 US US13/001,096 patent/US9712076B2/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11807758B2 (en) * | 2020-01-28 | 2023-11-07 | Jnc Corporation | Siloxane polymer and method of producing siloxane polymer |
Also Published As
| Publication number | Publication date |
|---|---|
| US20110134663A1 (en) | 2011-06-09 |
| WO2009157276A1 (ja) | 2009-12-30 |
| JP4375489B1 (ja) | 2009-12-02 |
| KR20120137519A (ko) | 2012-12-21 |
| EP2299583B1 (en) | 2024-05-15 |
| US9712076B2 (en) | 2017-07-18 |
| CN102077451A (zh) | 2011-05-25 |
| CN102077451B (zh) | 2013-09-04 |
| KR20100134134A (ko) | 2010-12-22 |
| EP2299583A4 (en) | 2017-08-16 |
| AU2009263526B2 (en) | 2013-08-22 |
| EP2299583A1 (en) | 2011-03-23 |
| AU2009263526A1 (en) | 2009-12-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4375489B1 (ja) | 電力変換装置 | |
| US8310848B2 (en) | Direct AC power converting apparatus | |
| JP4772542B2 (ja) | 電力変換装置 | |
| JP5521796B2 (ja) | 整流回路 | |
| CN107318272B (zh) | 半导体装置 | |
| AU2008292604B2 (en) | Direct type AC power converting device | |
| JP6421882B2 (ja) | 電力変換装置 | |
| JP2011078296A (ja) | 電力変換回路 | |
| JP5933873B1 (ja) | 回生コンバータ | |
| US20070053213A1 (en) | Wide-voltage-range converter | |
| Sanjeev et al. | Analysis of conduction and switching losses in two level inverter for low power applications | |
| WO2017090118A1 (ja) | 電力変換装置および鉄道車両 | |
| CN111835215A (zh) | 转换器电路、电力转换系统以及电动机驱动装置 | |
| US20140354254A1 (en) | Power converter | |
| JP2007274818A (ja) | 整流装置 | |
| JP2002119060A (ja) | ダイオード整流回路の入力高調波電流低減回路 | |
| JP5355284B2 (ja) | Dc−dcコンバータ回路 | |
| JPWO2019202862A1 (ja) | ゲート駆動回路および電力変換装置 | |
| JP2013027182A (ja) | 電力変換装置 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20090831 |
|
| R151 | Written notification of patent or utility model registration |
Ref document number: 4375489 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R151 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120918 Year of fee payment: 3 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130918 Year of fee payment: 4 |