JPS5750345A - Change detection type reproducing stylus for electrostatic capacity value - Google Patents

Change detection type reproducing stylus for electrostatic capacity value

Info

Publication number
JPS5750345A
JPS5750345A JP55125134A JP12513480A JPS5750345A JP S5750345 A JPS5750345 A JP S5750345A JP 55125134 A JP55125134 A JP 55125134A JP 12513480 A JP12513480 A JP 12513480A JP S5750345 A JPS5750345 A JP S5750345A
Authority
JP
Japan
Prior art keywords
faces
reproducing stylus
ridgeline
crystal faces
plane
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
Application number
JP55125134A
Other languages
English (en)
Other versions
JPS6042532B2 (ja
Inventor
Keishi Segawa
Masaki Murakami
Keiichiro Doi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Victor Company of Japan Ltd
Nippon Victor KK
Original Assignee
Victor Company of Japan Ltd
Nippon Victor KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Victor Company of Japan Ltd, Nippon Victor KK filed Critical Victor Company of Japan Ltd
Priority to JP55125134A priority Critical patent/JPS6042532B2/ja
Priority to GB8126955A priority patent/GB2085639B/en
Priority to CH578281A priority patent/CH644222A5/fr
Priority to DE19813135518 priority patent/DE3135518A1/de
Priority to US06/300,451 priority patent/US4410974A/en
Publication of JPS5750345A publication Critical patent/JPS5750345A/ja
Publication of JPS6042532B2 publication Critical patent/JPS6042532B2/ja
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B9/00—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor
    • G11B9/06—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor using record carriers having variable electrical capacitance; Record carriers therefor
    • G11B9/07—Heads for reproducing capacitive information
    • G11B9/075—Heads for reproducing capacitive information using mechanical contact with record carrier, e.g. by stylus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
    • B24B19/16—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding sharp-pointed workpieces, e.g. needles, pens, fish hooks, tweezers or record player styli
    • B24B19/165—Phonograph needles and the like
    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
    • C30B29/02—Elements
    • C30B29/04—Diamond
    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B31/00—Diffusion or doping processes for single crystals or homogeneous polycrystalline material with defined structure; Apparatus therefor
    • C30B31/20—Doping by irradiation with electromagnetic waves or by particle radiation
    • C30B31/22—Doping by irradiation with electromagnetic waves or by particle radiation by ion-implantation
JP55125134A 1980-09-09 1980-09-09 静電容量値の変化検出型再生針 Expired JPS6042532B2 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP55125134A JPS6042532B2 (ja) 1980-09-09 1980-09-09 静電容量値の変化検出型再生針
GB8126955A GB2085639B (en) 1980-09-09 1981-09-07 Capacitance detection type record stylus and method for making the stylus
CH578281A CH644222A5 (fr) 1980-09-09 1981-09-08 Style a detection capacitive et procede de fabrication.
DE19813135518 DE3135518A1 (de) 1980-09-09 1981-09-08 Abtastnadel nach dem kapazitaetserfassungsprinzip und verfahren zu ihrer herstellung
US06/300,451 US4410974A (en) 1980-09-09 1981-09-08 Capacitance detection type record stylus and method for making the stylus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55125134A JPS6042532B2 (ja) 1980-09-09 1980-09-09 静電容量値の変化検出型再生針

Publications (2)

Publication Number Publication Date
JPS5750345A true JPS5750345A (en) 1982-03-24
JPS6042532B2 JPS6042532B2 (ja) 1985-09-24

Family

ID=14902693

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55125134A Expired JPS6042532B2 (ja) 1980-09-09 1980-09-09 静電容量値の変化検出型再生針

Country Status (5)

Country Link
US (1) US4410974A (ja)
JP (1) JPS6042532B2 (ja)
CH (1) CH644222A5 (ja)
DE (1) DE3135518A1 (ja)
GB (1) GB2085639B (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5938653B2 (ja) * 1980-05-30 1984-09-18 日本ビクター株式会社 電極付き針の製作法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3943276A (en) * 1974-06-03 1976-03-09 Zenith Radio Corporation Record tracking pickup structure for a capacitive disc

Also Published As

Publication number Publication date
JPS6042532B2 (ja) 1985-09-24
CH644222A5 (fr) 1984-07-13
DE3135518C2 (ja) 1987-03-26
GB2085639B (en) 1984-09-05
DE3135518A1 (de) 1982-04-08
GB2085639A (en) 1982-04-28
US4410974A (en) 1983-10-18

Similar Documents

Publication Publication Date Title
ATE16364T1 (de) Schleifkoerper.
ES273987Y (es) Un articulo adecuado para limpiar superficies.
ES509283A0 (es) "una lente oftalmica que tiene dos superficies refractantes".
BR8506370A (pt) Limpador liquido limpido par superficies duras
BR8003511A (pt) Processo para medir o espacamento entre duas superficies opostas de material magneticamente condutivo e aparelho para realizacao do referido processo
DE3466292D1 (en) Single collimator lens having one aspherical surface
JPS52127908A (en) Glass having high refraction index and low density
ES8404520A1 (es) Un metodo de fabricar un prisma divisor de haz
AU567759B2 (en) Detecting erosion of fuel pipe in burner
IT7825400A0 (it) Procedimento per l'incollaggio di componenti metallici, in particolare piastrine, su superfici vetrose, e vetri comportanti componenti metallici incollati alla loro superficie.
JPS5750345A (en) Change detection type reproducing stylus for electrostatic capacity value
IT1069630B (it) Tornio per generare in una sola passata sorsbozzi per lentica contatto delle successioni di superfici sferiche e anasferiche concave o con vesse nonche'delle superfici sferiche contigue concave o convesse di raggio diverso
JPS56137534A (en) Playback stylus of static capacitance change detection type playback element
BE853674A (fr) Distributeur de milieux gazeux et de milieux fluides
ES219984U (es) Bloque para fachadas.
DE3585692D1 (de) Verwendung vor magnesium-aluminium-spinell in leichtmetallreduktionszellen.
JPS5758267A (en) Floating head slider utilizing negative pressure
JPS57147146A (en) Static capacitance type information reproducing stylus
Miyazawa A Removal Process of Surface Roughness in Lapping
JPS5353288A (en) Piezoelectric substrate
IT8468215A0 (it) Procedimento di liquefazione del carbone
JPS5542323A (en) Electrostatic capacity type video disc reproducing stylus
JPS5381106A (en) Magnetic card and its manufacture
BR8401434A (pt) Fosfonatos e flotacao de minerios com os mesmos
BASS et al. Optical properties of metals[Annual Report, 1 Nov. 1981- 30 Oct. 1982]