JP2020003492A - 電磁誘導式エンコーダのためのスケール構成 - Google Patents
電磁誘導式エンコーダのためのスケール構成 Download PDFInfo
- Publication number
- JP2020003492A JP2020003492A JP2019117322A JP2019117322A JP2020003492A JP 2020003492 A JP2020003492 A JP 2020003492A JP 2019117322 A JP2019117322 A JP 2019117322A JP 2019117322 A JP2019117322 A JP 2019117322A JP 2020003492 A JP2020003492 A JP 2020003492A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic field
- signal
- axis direction
- electromagnetic induction
- measurement axis
- 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
- 230000005674 electromagnetic induction Effects 0.000 title claims abstract description 29
- 238000001514 detection method Methods 0.000 claims abstract description 85
- 238000005259 measurement Methods 0.000 claims abstract description 54
- 230000004907 flux Effects 0.000 claims abstract description 30
- 230000008859 change Effects 0.000 claims abstract description 14
- 239000000758 substrate Substances 0.000 claims description 21
- 230000000737 periodic effect Effects 0.000 claims description 20
- 239000004020 conductor Substances 0.000 claims description 13
- 230000001939 inductive effect Effects 0.000 claims description 12
- 230000004044 response Effects 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 8
- 239000012811 non-conductive material Substances 0.000 claims description 3
- 125000004122 cyclic group Chemical group 0.000 abstract 1
- 238000004804 winding Methods 0.000 description 21
- 238000000034 method Methods 0.000 description 5
- NRJAVPSFFCBXDT-HUESYALOSA-N 1,2-distearoyl-sn-glycero-3-phosphocholine Chemical compound CCCCCCCCCCCCCCCCCC(=O)OC[C@H](COP([O-])(=O)OCC[N+](C)(C)C)OC(=O)CCCCCCCCCCCCCCCCC NRJAVPSFFCBXDT-HUESYALOSA-N 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 101100477284 Neurospora crassa (strain ATCC 24698 / 74-OR23-1A / CBS 708.71 / DSM 1257 / FGSC 987) tsp-1 gene Proteins 0.000 description 2
- 101150063190 SEN15 gene Proteins 0.000 description 2
- 101150048614 TSEN15 gene Proteins 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 102100034921 tRNA-splicing endonuclease subunit Sen15 Human genes 0.000 description 2
- 101100076840 Arabidopsis thaliana MFL1 gene Proteins 0.000 description 1
- 101000581961 Homo sapiens Neurocalcin-delta Proteins 0.000 description 1
- 101000836337 Homo sapiens Probable helicase senataxin Proteins 0.000 description 1
- 102100027348 Neurocalcin-delta Human genes 0.000 description 1
- 102100027178 Probable helicase senataxin Human genes 0.000 description 1
- 101100476979 Rhodobacter capsulatus sdsA gene Proteins 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
- G01D5/20—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
- G01D5/2006—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature by influencing the self-induction of one or more coils
- G01D5/202—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature by influencing the self-induction of one or more coils by movable a non-ferromagnetic conductive element
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
- G01D5/20—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
- G01D5/204—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature by influencing the mutual induction between two or more coils
- G01D5/2053—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature by influencing the mutual induction between two or more coils by a movable non-ferromagnetic conductive element
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B3/00—Measuring instruments characterised by the use of mechanical techniques
- G01B3/20—Slide gauges
- G01B3/205—Slide gauges provided with a counter for digital indication of the measured dimension
Abstract
Description
Claims (14)
- 測定軸方向に沿った2つの要素間の相対位置を測定するために使用可能な電磁誘導式エンコーダであって、当該電磁誘導式エンコーダは、
少なくとも第1のタイプの信号変調素子を含む周期的スケールパターンを含み、前記測定軸方向に沿って延在するスケールと、
前記周期的スケールパターンに近接して取り付けられ、前記周期的スケールパターンに対して前記測定軸方向に沿って移動するように構成される検出部と、
コイル駆動信号を提供するように前記検出部に動作可能に接続され、前記検出部と前記周期的スケールパターンとの相対位置を、前記検出部から入力される検出信号に基づいて特定する信号処理部とを備え、
前記周期的スケールパターンは、空間波長W1を有し、前記第1のタイプの信号変調素子は、前記空間波長W1に対応して前記測定軸方向に沿って配置される複数の導電性プレートまたは複数の導電性ループを含み、
前記検出部は、
基板に固定され、動作中に信号変調素子の前記周期的スケールパターンに合わせて整列される内部領域を囲み、前記コイル駆動信号に応答して前記内部領域内に磁束変化を発生する磁場発生コイルと、
前記測定軸方向に沿って配置され、前記基板に固定された磁場検出コイルセットであって、前記磁場検出コイルセットの磁場検出コイルは、前記内部領域と位置合わせされるかまたは重なる前記磁場検出コイルの部分について、前記測定軸方向に沿った公称検知素子幅寸法DSENを有する導電性ループまたは導電性ループ部分を含み、前記磁場検出コイルセットは、前記周期的スケールパターンの隣接する前記信号変調素子によって提供される磁束変化への局所的影響に応じた検出信号を提供するように構成され、
前記第1のタイプの信号変調素子は、動作中に前記内部領域と整列するかまたは重なる有効領域を含み、前記有効領域は、前記測定軸方向に沿って平均寸法DSMEを有し、DSMEはDSENよりも大きく、DSMEは、少なくとも0.55*W1であり、最大で0.8*W1である、電磁誘導式エンコーダ。 - 前記平均寸法DSMEは、多くとも1.6*DSENであることを特徴とする、請求項1に記載の電磁誘導式エンコーダ。
- 0.45*W1<DSEN<0.55*W1であることを特徴とする、請求項1に記載の電磁誘導式エンコーダ。
- DSENが約0.5*W1であることを特徴とする、請求項1に記載の電磁誘導式エンコーダ。
- 前記平均寸法DSMEは、少なくとも0.6*W1であることを特徴とする、請求項1に記載の電磁誘導式エンコーダ。
- 前記平均寸法DSMEは、少なくとも0.66*W1であることを特徴とする、請求項5に記載の電磁誘導式エンコーダ。
- 前記平均寸法DSMEは、少なくとも0.7*W1であることを特徴とする、請求項6に記載の電磁誘導式エンコーダ。
- 第2のタイプの信号変調素子が、前記測定軸方向に沿って前記第1のタイプの信号変調素子の間に配置され、前記第2のタイプの信号変調素子は、前記第1のタイプの信号変調素子と比較して磁束変化に対して比較的少ない影響を有するように構成される、請求項1に記載の電磁誘導式エンコーダ。
- 前記第2のタイプの前記信号変調素子は、非導電性材料の領域を含む、請求項8に記載の電磁誘導式エンコーダ。
- 前記第2のタイプの信号変調素子は、非導電性スケール基板の領域を含み、前記第1のタイプの信号変調素子は、前記非導電性スケール基板に固定されることを特徴とする、請求項9に記載の電磁誘導式エンコーダ。
- 前記検出部および前記スケールは、ほぼ平坦な基板を含み、前記検出部は、前記周期的スケールパターンとほぼ平行に、且つ互いの導体間の公称動作ギャップが少なくとも0.075*W1であるように取り付けられて構成される、請求項1に記載の電磁誘導式エンコーダ。
- 前記公称動作ギャップは、少なくとも0.15*W1であることを特徴とする、請求項11に記載の電磁誘導式エンコーダ。
- 前記磁場検出コイルの前記導電性ループまたは導電性ループ部分は、前記測定軸方向に垂直であり、前記内部領域と整列するかまたは重なるように構成されたほぼ平行な導体セグメントを含み、前記平行な導体セグメントは、前記測定軸方向に沿って前記公称検知素子幅寸法DSENで間隔を置いて配置される、請求項1に記載の電磁誘導式エンコーダ。
- 前記第1のタイプの前記信号変調素子の前記複数の導電性プレートまたは前記複数の導電性ループは、それぞれ、前記測定軸方向に垂直であり、それらの有効領域を境界付ける、ほぼ平行なプレートエッジまたはほぼ平行な導電性ループセグメントを備え、前記平行なプレートエッジまたは前記平行な導電性ループセグメントは、前記測定軸方向に沿って前記平均寸法DSMEで離間されることを特徴とする、請求項1に記載の電磁誘導式エンコーダ。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16/021,528 | 2018-06-28 | ||
US16/021,528 US20200003581A1 (en) | 2018-06-28 | 2018-06-28 | Scale configuration for inductive position encoder |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2020003492A true JP2020003492A (ja) | 2020-01-09 |
JP7300324B2 JP7300324B2 (ja) | 2023-06-29 |
Family
ID=68886410
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2019117322A Active JP7300324B2 (ja) | 2018-06-28 | 2019-06-25 | 電磁誘導式エンコーダのためのスケール構成 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20200003581A1 (ja) |
JP (1) | JP7300324B2 (ja) |
CN (1) | CN110657826B (ja) |
DE (1) | DE102019209474A1 (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10775199B2 (en) * | 2016-08-24 | 2020-09-15 | Mitutoyo Corporation | Winding and scale configuration for inductive position encoder |
US11067414B1 (en) | 2020-03-23 | 2021-07-20 | Mitutoyo Corporation | Transmitter and receiver configuration for inductive position encoder |
US11181395B2 (en) | 2020-03-23 | 2021-11-23 | Mitutoyo Corporation | Transmitter and receiver configuration for inductive position encoder |
US11169008B2 (en) * | 2020-03-23 | 2021-11-09 | Mitutoyo Corporation | Transmitter and receiver configuration for inductive position encoder |
EP4009004A1 (en) * | 2020-12-02 | 2022-06-08 | TE Connectivity Sensors Germany GmbH | Eddy current sensor device for measuring a linear displacement |
US11713983B2 (en) * | 2021-06-30 | 2023-08-01 | Mitutoyo Corporation | Sensing winding configuration for inductive position encoder |
US20220205815A1 (en) * | 2020-12-31 | 2022-06-30 | Mitutoyo Corporation | Sensing winding configuration for inductive position encoder |
JP2022106663A (ja) | 2020-12-31 | 2022-07-20 | 株式会社ミツトヨ | 電磁誘導式エンコーダ用の検知巻線構成 |
US20220205814A1 (en) | 2020-12-31 | 2022-06-30 | Mitutoyo Corporation | Sensing winding configuration for inductive position encoder |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08313295A (ja) * | 1995-05-16 | 1996-11-29 | Mitsutoyo Corp | 誘導電流を用いた位置検出トランスデューサ |
JP2001255108A (ja) * | 2000-03-13 | 2001-09-21 | Mitsutoyo Corp | 誘導型トランスデューサ及び電子ノギス |
JP2005249730A (ja) * | 2004-03-08 | 2005-09-15 | Niles Co Ltd | 電磁誘導型変位センサ |
JP2009011092A (ja) * | 2007-06-28 | 2009-01-15 | Shibaura Institute Of Technology | ブラシレスモータ |
JP2009168701A (ja) * | 2008-01-18 | 2009-07-30 | Mitsutoyo Corp | 電磁誘導式エンコーダ |
JP2018004630A (ja) * | 2016-07-01 | 2018-01-11 | 株式会社ミツトヨ | 電子式アブソリュート型エンコーダ |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9523991D0 (en) * | 1995-11-23 | 1996-01-24 | Scient Generics Ltd | Position encoder |
US5973494A (en) | 1996-05-13 | 1999-10-26 | Mitutoyo Corporation | Electronic caliper using a self-contained, low power inductive position transducer |
US5886519A (en) | 1997-01-29 | 1999-03-23 | Mitutoyo Corporation | Multi-scale induced current absolute position transducer |
US5901458A (en) | 1997-11-21 | 1999-05-11 | Mitutoyo Corporation | Electronic caliper using a reduced offset induced current position transducer |
JP4615955B2 (ja) * | 2004-10-12 | 2011-01-19 | 株式会社ミツトヨ | 誘導型変位検出装置 |
WO2007097380A1 (ja) * | 2006-02-21 | 2007-08-30 | Nikon Corporation | パターン形成装置及びパターン形成方法、移動体駆動システム及び移動体駆動方法、露光装置及び露光方法、並びにデバイス製造方法 |
FR3002034B1 (fr) * | 2013-02-12 | 2015-03-20 | Continental Automotive France | Capteur de position inductif |
US9612136B1 (en) * | 2015-09-30 | 2017-04-04 | Mitutoyo Corporation | Absolute position encoder including a redundant spatial phase signal |
US9683869B1 (en) * | 2015-12-11 | 2017-06-20 | Mitutoyo Corporation | Electronic absolute position encoder |
US9958294B2 (en) * | 2016-06-30 | 2018-05-01 | Mitutoyo Corporation | Absolute position encoder including scale with varying spatial characteristic and utilizing Fourier transform or other signal processing |
US10520335B2 (en) * | 2016-08-24 | 2019-12-31 | Mitutoyo Corporation | Winding configuration for inductive position encoder |
US9927261B1 (en) * | 2016-09-23 | 2018-03-27 | Sagentia Ltd. | Inductive sensor device for use with a distance measurement device |
-
2018
- 2018-06-28 US US16/021,528 patent/US20200003581A1/en active Pending
-
2019
- 2019-06-25 JP JP2019117322A patent/JP7300324B2/ja active Active
- 2019-06-28 CN CN201910572670.3A patent/CN110657826B/zh active Active
- 2019-06-28 DE DE102019209474.0A patent/DE102019209474A1/de active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08313295A (ja) * | 1995-05-16 | 1996-11-29 | Mitsutoyo Corp | 誘導電流を用いた位置検出トランスデューサ |
JP2001255108A (ja) * | 2000-03-13 | 2001-09-21 | Mitsutoyo Corp | 誘導型トランスデューサ及び電子ノギス |
JP2005249730A (ja) * | 2004-03-08 | 2005-09-15 | Niles Co Ltd | 電磁誘導型変位センサ |
JP2009011092A (ja) * | 2007-06-28 | 2009-01-15 | Shibaura Institute Of Technology | ブラシレスモータ |
JP2009168701A (ja) * | 2008-01-18 | 2009-07-30 | Mitsutoyo Corp | 電磁誘導式エンコーダ |
JP2018004630A (ja) * | 2016-07-01 | 2018-01-11 | 株式会社ミツトヨ | 電子式アブソリュート型エンコーダ |
Also Published As
Publication number | Publication date |
---|---|
JP7300324B2 (ja) | 2023-06-29 |
US20200003581A1 (en) | 2020-01-02 |
CN110657826B (zh) | 2022-06-28 |
CN110657826A (zh) | 2020-01-07 |
DE102019209474A1 (de) | 2020-01-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP7300324B2 (ja) | 電磁誘導式エンコーダのためのスケール構成 | |
US10520335B2 (en) | Winding configuration for inductive position encoder | |
US10551217B2 (en) | Receiver line spacing in inductive position encoder | |
JP6727721B2 (ja) | 冗長空間位相信号を含むアブソリュート型エンコーダ | |
US11287286B2 (en) | Winding and scale configuration for inductive position encoder | |
JP7198697B2 (ja) | 電磁誘導式エンコーダの送信部及び受信部 | |
US9435663B2 (en) | Absolute position encoder scale having layers in a stacked configuration | |
JP7126748B2 (ja) | 電子式エンコーダ及び狭範囲誤差を低減させる方法 | |
US10612943B2 (en) | Winding and scale configuration for inductive position encoder | |
CN107560642B (zh) | 组合两个很宽地分离的波长的信号的绝对位置编码器 | |
JP2019113542A (ja) | 電磁誘導式エンコーダの巻線及びスケール構成 | |
JP2019144227A (ja) | 電磁誘導式エンコーダの巻線及びスケール構成 | |
JP2022106661A (ja) | 電磁誘導式エンコーダ用の検知巻線構成 | |
JP2022106663A (ja) | 電磁誘導式エンコーダ用の検知巻線構成 | |
US11169008B2 (en) | Transmitter and receiver configuration for inductive position encoder | |
US20220205815A1 (en) | Sensing winding configuration for inductive position encoder | |
JP2015194488A (ja) | 位置検出装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20220519 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20230220 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20230228 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20230413 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20230516 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20230519 |
|
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 Effective date: 20230613 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20230619 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 7300324 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |