Assignee
PILOT PEN CO LTD
JP·54 granted patents·1,500 citations·filing 1974–1988
Top patents by PatentIndex Score
54 records- 0198US4143472ADisplaying magnetic panel and its display devicePILOT PEN CO LTD·Filed 1977·Granted Mar 13, 1979·221 cites·13 claims
- 0296US4368952AMagnetic display panel using reversal magnetismPILOT PEN CO LTD·Filed 1980·Granted Jan 18, 1983·138 cites·18 claims
- 0394USD254912SFountain penPILOT PEN CO LTD·Filed 1978·Granted May 6, 1980·60 cites·1 claims
- 0488US4014758AContinuous electrolytical treatment of aluminum or its alloysPILOT PEN CO LTD·Filed 1975·Granted Mar 29, 1977·30 cites·9 claims
- 0587US4536428AMagnetic display panelPILOT PEN CO LTD·Filed 1980·Granted Aug 20, 1985·43 cites·35 claims
- 0687US4109287AProcess for recording information or sound and process for preparation of recording materials used thereforPILOT PEN CO LTD·Filed 1975·Granted Aug 22, 1978·38 cites·2 claims
- 0787US3957495ASolid writing materialPILOT PEN CO LTD·Filed 1974·Granted May 18, 1976·50 cites·7 claims
- 0886US4471079AAqueous inkPILOT PEN CO LTD·Filed 1983·Granted Sep 11, 1984·81 cites·19 claims
- 0983US4687791AErasable ball-point pen inkPILOT PEN CO LTD·Filed 1983·Granted Aug 18, 1987·33 cites·16 claims
- 1083US4629748AErasable ball-point pen inkPILOT PEN CO LTD·Filed 1985·Granted Dec 16, 1986·37 cites·19 claims
- 1182US4520238APickup device for picking up vibration transmitted through bonesPILOT PEN CO LTD·Filed 1983·Granted May 28, 1985·59 cites·18 claims
- 1281US4556336APen core for writing instrumentPILOT PEN CO LTD·Filed 1984·Granted Dec 3, 1985·36 cites·3 claims
- 1380USD260658SFountain penPILOT PEN CO LTD·Filed 1979·Granted Sep 8, 1981·26 cites·1 claims
- 1479US4707593AVisible image magnetic cardPILOT PEN CO LTD·Filed 1986·Granted Nov 17, 1987·41 cites·17 claims
- 1579US4288936AWall-hanging type magnetic displaying devicePILOT PEN CO LTD·Filed 1979·Granted Sep 15, 1981·41 cites·12 claims
- 1676US4563397AProcess for producing a magnetic recording material and article producedPILOT PEN CO LTD·Filed 1984·Granted Jan 7, 1986·19 cites·4 claims
- 1776US4365728ALiquid discharge apparatusPILOT PEN CO LTD·Filed 1979·Granted Dec 28, 1982·28 cites·9 claims
- 1876US4202235AElectronic musical boxPILOT PEN CO LTD·Filed 1978·Granted May 13, 1980·19 cites·9 claims
- 1976US4148591AWriting unit locking mechanism in a multiple-point writing implement including a mechanical pencil unitPILOT PEN CO LTD·Filed 1977·Granted Apr 10, 1979·26 cites·8 claims
- 2075US4155660ADot printing wirePILOT PEN CO LTD·Filed 1977·Granted May 22, 1979·20 cites·7 claims
- 2174US4350458AFountain pen with battery operated supply detector and ink pressurizing devicePILOT PEN CO LTD·Filed 1980·Granted Sep 21, 1982·38 cites·14 claims
- 2274US4323999AAutomatic transmission or recording or transmission and reception control systemPILOT PEN CO LTD·Filed 1980·Granted Apr 6, 1982·37 cites·13 claims
- 2372US4419912AVibration threading lathe for precision screw cuttingPILOT PEN CO LTD·Filed 1981·Granted Dec 13, 1983·37 cites·8 claims
- 2468US4643684AMagnetic display panelPILOT PEN CO LTD·Filed 1981·Granted Feb 17, 1987·21 cites·16 claims
- 2566US4760104AErasable ball-point pen inkPILOT PEN CO LTD·Filed 1985·Granted Jul 26, 1988·18 cites·11 claims
- 2665US4435099AFountain pen with motor feedPILOT PEN CO LTD·Filed 1980·Granted Mar 6, 1984·24 cites·20 claims
- 2764US4560298AOpening and closing device for retractable nib fountain penPILOT PEN CO LTD·Filed 1982·Granted Dec 24, 1985·23 cites·9 claims
- 2864US4526671ASurface treatment of aluminum or aluminum alloysPILOT PEN CO LTD·Filed 1983·Granted Jul 2, 1985·10 cites·18 claims
- 2964US4202641AMultiple-point writing instrument including a mechanical pencil unitPILOT PEN CO LTD·Filed 1977·Granted May 13, 1980·17 cites·4 claims
- 3063US4347011AFountain pen equipped with a resiliency adjustment devicePILOT PEN CO LTD·Filed 1979·Granted Aug 31, 1982·24 cites·22 claims
- 3162US4304495APrint hammer in dot printerPILOT PEN CO LTD·Filed 1979·Granted Dec 8, 1981·11 cites·12 claims
- 3261US4231707AFluid supplying devicePILOT PEN CO LTD·Filed 1979·Granted Nov 4, 1980·15 cites·22 claims
- 3360US4123590ADry writing board possessing anti-halation effect and process for producing the samePILOT PEN CO LTD·Filed 1975·Granted Oct 31, 1978·21 cites·6 claims
- 3459US4606769AErasable black ink composition for ball-point pensPILOT PEN CO LTD·Filed 1984·Granted Aug 19, 1986·15 cites·10 claims
- 3558US4863526AFine crystalline thin wire of cobalt base alloy and process for producing the samePILOT PEN CO LTD·Filed 1987·Granted Sep 5, 1989·14 cites·13 claims
- 3658US4840837AHeat transfer mediumPILOT PEN CO LTD·Filed 1988·Granted Jun 20, 1989·10 cites·15 claims
- 3756US4597829AStencil, stencil material kit and stencil duplicator kit containing the samePILOT PEN CO LTD·Filed 1985·Granted Jul 1, 1986·15 cites·17 claims
- 3854US4596903APickup device for picking up vibration transmitted through bonesPILOT PEN CO LTD·Filed 1984·Granted Jun 24, 1986·20 cites·3 claims
- 3951US4310259ACapillary nibs for inscribing instrumentsPILOT PEN CO LTD·Filed 1979·Granted Jan 12, 1982·7 cites·6 claims
- 4049USD254913SFountain pen nibPILOT PEN CO LTD·Filed 1978·Granted May 6, 1980·4 cites·1 claims
- 4148US4659439ASurface treatment of aluminum or aluminum alloysPILOT PEN CO LTD·Filed 1985·Granted Apr 21, 1987·6 cites·3 claims
- 4247US4446993AApparatus for dispensing a preselected amount of liquidPILOT PEN CO LTD·Filed 1982·Granted May 8, 1984·9 cites·12 claims
- 4347US4392244AAutomatic transmission and reception control systemPILOT PEN CO LTD·Filed 1980·Granted Jul 5, 1983·12 cites·4 claims
- 4444US4646107AXY plotter apparatusPILOT PEN CO LTD·Filed 1986·Granted Feb 24, 1987·7 cites·15 claims
- 4539US4413751AMethod for dispensing a preselected amount of liquidPILOT PEN CO LTD·Filed 1978·Granted Nov 8, 1983·5 cites·10 claims
- 4637US4838715AInk ribbon cassettePILOT PEN CO LTD·Filed 1988·Granted Jun 13, 1989·3 cites·5 claims
- 4737US4750003AMagnetic display unitPILOT PEN CO LTD·Filed 1987·Granted Jun 7, 1988·8 cites·22 claims
- 4837US3969211AContinuous apparatus for electrolytic treatment on a long structure of aluminum or its alloysPILOT PEN CO LTD·Filed 1975·Granted Jul 13, 1976·4 cites·13 claims
- 4936US4569283AStencil material set and stencil duplicator setPILOT PEN CO LTD·Filed 1984·Granted Feb 11, 1986·5 cites·11 claims
- 5031US4669906ABall-point pen venting arrangementPILOT PEN CO LTD·Filed 1985·Granted Jun 2, 1987·8 cites·4 claims
Showing the top 50 of 54 patent records by PatentIndex Score.
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