Inventor

KAGEYAMA HIDEHEI

JP106 patents

⚠️ This page may combine multiple inventors who share the name “KAGEYAMA HIDEHEI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

KOTOBUKI & CO LTD

44 patents

US6227739B1May 8, 2001

Liquid container

KOTOBUKI & CO LTD64 citations96

US5997200ADec 7, 1999

Barrel with finger gripping means

KOTOBUKI & CO LTD28 citations93

US5988908ANov 23, 1999

Barrel with finger gripping means

KOTOBUKI & CO LTD27 citations93

US5009533AApr 23, 1991

Propelling pencil with cushion sleeve

KOTOBUKI & CO LTD27 citations93

US4365390ADec 28, 1982

Clip for writing utensil

KOTOBUKI & CO LTD29 citations93

US6702158B2Mar 9, 2004

Knocking-type liquid container

KOTOBUKI & CO LTD23 citations92

US4200977AMay 6, 1980

Cutter knife

KOTOBUKI & CO LTD47 citations92

US8970560B2Mar 3, 2015

Writing instrument

KOTOBUKI & CO LTD8 citations84

US6893179B2May 17, 2005

Rotary bar-projecting mechanism for push-button implement

KOTOBUKI & CO LTD12 citations84

US6749354B2Jun 15, 2004

Composite writing implement

KOTOBUKI & CO LTD18 citations84

US5971644AOct 26, 1999

Side knock-type writing instrument

KOTOBUKI & CO LTD19 citations84

US7018124B1Mar 28, 2006

Writing implement with stylus

KOTOBUKI & CO LTD13 citations83

US7008131B2Mar 7, 2006

Composite holding device

KOTOBUKI & CO LTD17 citations83

US5702193ADec 30, 1997

Side knock type mechanical pencil

KOTOBUKI & CO LTD14 citations82

US4386865AJun 7, 1983

Automatic sharp pencil

KOTOBUKI & CO LTD20 citations82

US4895467AJan 23, 1990

Rotary knock type mechanical pencil

KOTOBUKI & CO LTD17 citations81

US6325130B1Dec 4, 2001

Coat transfer tool

KOTOBUKI & CO LTD15 citations79

US7284927B2Oct 23, 2007

Writing instrument including stick-shaped material propelling mechanism

KOTOBUKI & CO LTD8 citations74

US6390707B2May 21, 2002

Knocking writing utensil

KOTOBUKI & CO LTD11 citations74

US6309129B1Oct 30, 2001

Writing utensils

KOTOBUKI & CO LTD14 citations74

US6039484AMar 21, 2000

Writing instrument

KOTOBUKI & CO LTD14 citations74

US5988914ANov 23, 1999

Writing instrument

KOTOBUKI & CO LTD7 citations74

US5882132AMar 16, 1999

Side knock-type mechanical pencil

KOTOBUKI & CO LTD7 citations74

US5388722AFeb 14, 1995

Stick-shaped object dispenser

KOTOBUKI & CO LTD9 citations74

US5090831AFeb 25, 1992

Writing instrument

KOTOBUKI & CO LTD9 citations74

US4998837AMar 12, 1991

Lead cartridge with an openable capping structure

KOTOBUKI & CO LTD13 citations74

US4955739ASep 11, 1990

Mechanical pencil having side push button actuated lead advance

KOTOBUKI & CO LTD13 citations74

US4896982AJan 30, 1990

Lead feed mechanism for mechanical pencil

KOTOBUKI & CO LTD7 citations74

US4687363AAug 18, 1987

Mechanical pencil and method for assembling the same

KOTOBUKI & CO LTD7 citations74

US4669904AJun 2, 1987

Writing instrument with weight actuation

KOTOBUKI & CO LTD16 citations74

US4627756ADec 9, 1986

Lead propelling mechanism for a mechanical pencil

KOTOBUKI & CO LTD7 citations74

US4620811ANov 4, 1986

Mechanical pencil

KOTOBUKI & CO LTD9 citations74

US4619539AOct 28, 1986

Mechanical pencil equipped with lead-storing cartridge

KOTOBUKI & CO LTD14 citations74

US4403691ASep 13, 1983

Spare lead holder

KOTOBUKI & CO LTD9 citations74

US4371277AFeb 1, 1983

Automatic pencil

KOTOBUKI & CO LTD13 citations74

US4171170AOct 16, 1979

Automatic pencil

KOTOBUKI & CO LTD14 citations74

US4165941AAug 28, 1979

Mechanical pencil

KOTOBUKI & CO LTD7 citations74

US9862225B2Jan 9, 2018

Liquid applying tool

KOTOBUKI & CO LTD3 citations73

US7210869B2May 1, 2007

Cartridge type stationery product

KOTOBUKI & CO LTD8 citations73

US6517272B1Feb 11, 2003

Double-chuck mechanical pencil

KOTOBUKI & CO LTD11 citations73

US6039485AMar 21, 2000

Double-chuck mechanical pencil

KOTOBUKI & CO LTD7 citations73

US5988913ANov 23, 1999

Double-chuck mechanical pencil

KOTOBUKI & CO LTD12 citations73

US5947620ASep 7, 1999

Double-chuck mechanical pencil

KOTOBUKI & CO LTD8 citations73

US5462376AOct 31, 1995

Mechanical pencil with improved slider mechanism

KOTOBUKI & CO LTD11 citations73

KOTOBUKI PRINTING CO LTD

4 patents

US7051642B2May 30, 2006

Liquid container

KOTOBUKI PRINTING CO LTD30 citations92

US6176632B1Jan 23, 2001

Liquid container

KOTOBUKI PRINTING CO LTD28 citations90

US6102602AAug 15, 2000

Liquid container cap

KOTOBUKI PRINTING CO LTD21 citations90

US6155734ADec 5, 2000

Rotary stick projecting device

KOTOBUKI PRINTING CO LTD17 citations83

TOYO POLYMER KK

1 patent

US4618280AOct 21, 1986

Push-button writing instrument with front seal means

TOYO POLYMER KK23 citations82

KAGEYAMA HIDEHEI

1 patent

US8740489B2Jun 3, 2014

Liquid applicator

KAGEYAMA HIDEHEI7 citations78

Showing the top 50 of 106 patents by PatentIndex Score.