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DE2728902C2 - - Google Patents

Info

Publication number
DE2728902C2
DE2728902C2 DE19772728902 DE2728902A DE2728902C2 DE 2728902 C2 DE2728902 C2 DE 2728902C2 DE 19772728902 DE19772728902 DE 19772728902 DE 2728902 A DE2728902 A DE 2728902A DE 2728902 C2 DE2728902 C2 DE 2728902C2
Authority
DE
Grant status
Grant
Patent type
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.)
Expired
Application number
DE19772728902
Other versions
DE2728902A1 (de )
Inventor
Shin Yao Osaka Jp Ojima
Kazuhiko Higashiosaka Osaka Jp Ohgami
Kazutaka Watanabe
Masaru Nohara
Kenji Yao Osaka Jp Yamamoto
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.)
HOSHIDENKI-SEIZO K K YAO OSAKA JP
Original Assignee
HOSHIDENKI-SEIZO K.K., YAO, OSAKA, JP
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
Grant date

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B43WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43KIMPLEMENTS FOR WRITING OR DRAWING
    • B43K29/00Combinations of writing implements with other articles
    • B43K29/08Combinations of writing implements with other articles with measuring, computing or indicating devices
    • B43K29/093Combinations of writing implements with other articles with measuring, computing or indicating devices with calculators
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRICAL DIGITAL DATA PROCESSING
    • G06F15/00Digital computers in general; Data processing equipment in general
    • G06F15/02Digital computers in general; Data processing equipment in general manually operated with input through keyboard and computation using a built-in programme, e.g. pocket calculators
    • G06F15/0208Digital computers in general; Data processing equipment in general manually operated with input through keyboard and computation using a built-in programme, e.g. pocket calculators for combination with other devices having a different main function, e.g. watches, pens
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/84Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by ergonomic functions, e.g. for miniature keyboards; characterised by operational sensory functions, e.g. sound feedback
DE19772728902 1976-06-28 1977-06-27 Expired DE2728902C2 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP8542276U JPS534181U (de) 1976-06-28 1976-06-28
JP325377U JPS5398976U (de) 1977-01-14 1977-01-14
JP325477U JPS5398977U (de) 1977-01-14 1977-01-14

Publications (2)

Publication Number Publication Date
DE2728902A1 true DE2728902A1 (de) 1978-01-05
DE2728902C2 true DE2728902C2 (de) 1984-08-16

Family

ID=27275723

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19772728902 Expired DE2728902C2 (de) 1976-06-28 1977-06-27

Country Status (2)

Country Link
US (1) US4128889A (de)
DE (1) DE2728902C2 (de)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5817269Y2 (de) * 1976-05-20 1983-04-07
JPS5759977Y2 (de) * 1976-07-16 1982-12-21
DE7731690U1 (de) * 1977-10-13 1978-01-26 Fischer, Janos, Zuerich (Schweiz) Taste fuer informationsverarbeitende miniaturgeraete
US4241409A (en) * 1977-12-30 1980-12-23 Nolf Jean Marie Hand held pen-size calculator
US4403315A (en) * 1979-07-23 1983-09-06 Citizen Watch Co., Ltd. Electronic timepiece assembly
US4324976A (en) * 1980-02-08 1982-04-13 The Laitram Corporation Hand-held calculator or similar keyboard device
JPS6028990Y2 (de) * 1980-02-27 1985-09-03
DE8016058U1 (de) * 1980-06-18 1980-09-25 Dieter Graesslin Feinwerktechnik, 7742 St Georgen
US4709331A (en) * 1984-05-01 1987-11-24 Barkett Patricia A Calculator-computer for calculating infusion rates over varying time intervals
US5217478A (en) * 1987-02-18 1993-06-08 Linvatec Corporation Arthroscopic surgical instrument drive system
FR2629227B1 (fr) * 1988-03-25 1992-12-24 Sfena Terminal de communication a effet tactile
DE9014472U1 (de) * 1990-10-16 1991-01-24 Fritz Hartmann Geraetebau Gmbh & Co Kg, 8523 Baiersdorf, De
US5528008A (en) * 1991-02-27 1996-06-18 Danek; Michael Pressure controlled activating switch for a hand held tool
US5251163A (en) * 1992-01-13 1993-10-05 Rouhani Sayd Z Keypointer for single-hand computer keyboard
US5995123A (en) * 1997-11-03 1999-11-30 Mccormick; Erik J. Marking and counting probe
CN2385375Y (zh) * 1998-12-30 2000-06-28 王登福 电子计算笔
WO2001084722A3 (en) * 2000-04-28 2002-01-31 Stanley Mulfeld Data entry device
US6657618B2 (en) 2001-01-23 2003-12-02 Eloise Gatewood-Moore Optical memory unit for capturing complete analog motion
US6504708B2 (en) 2001-06-11 2003-01-07 Royal Consumer Information Products, Inc. Key chain organizer assembly
US7393149B2 (en) * 2005-08-17 2008-07-01 Motorola, Inc. Compact input device for entering data
US7431527B2 (en) * 2005-09-06 2008-10-07 Adstracts, Inc. Promotional writing instrument with body mass index calculator
US20070292199A1 (en) * 2006-06-15 2007-12-20 Richard Waldinger Lens pen
US20080063282A1 (en) * 2006-09-11 2008-03-13 Pen Technologies, Llc Writing instrument that calculates grade
US20080063284A1 (en) * 2006-09-11 2008-03-13 Pen Technologies, Llc Writing instrument that calculates grade
US7760195B2 (en) * 2006-09-11 2010-07-20 Edison Nation, Llc Writing instrument that calculates grade
US20080063283A1 (en) * 2006-09-11 2008-03-13 Pen Technologies, Llc Writing instrument that calculates grade
US20080266782A1 (en) * 2007-04-27 2008-10-30 Qin Zhang Waterproof keyboard device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3937939A (en) * 1974-01-07 1976-02-10 Frenkel Marvin A Single-hand digital calculator
US4007364A (en) * 1974-05-02 1977-02-08 Hoshidenki-Seizo Kabushiki Kaisha Writing instrument with calculator
US3940758A (en) * 1974-09-20 1976-02-24 Margolin George D Expandable keyboard for electronic pocket calculators and the like
JPS5168726A (de) * 1974-12-12 1976-06-14 Hosiden Electronics Co

Also Published As

Publication number Publication date Type
US4128889A (en) 1978-12-05 grant
DE2728902A1 (de) 1978-01-05 application

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition