P

Inventor

HAYASHI AKIHIRO

JP113 patents
⚠️ This page may combine multiple inventors who share the name “HAYASHI AKIHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

NIDEK KK

20 patents
US6244713B1Jun 12, 2001

Optometric chart presenting apparatus

NIDEK KK20 citations93
US5432596AJul 11, 1995

Lens measurement apparatus providing measurements of multiple lens characteristics

NIDEK KK25 citations93
US5416540AMay 16, 1995

Apparatus for visual acuity test

NIDEK KK26 citations93
US6257721B1Jul 10, 2001

Device for spectacles

NIDEK KK40 citations92
US5767940AJun 16, 1998

Ophthalmic apparatus

NIDEK KK32 citations92
US5444504AAug 22, 1995

Optometric apparatus

NIDEK KK42 citations92
US5629748AMay 13, 1997

Visual function examination apparatus including binocular fixation target

NIDEK KK21 citations91
US7364298B2Apr 29, 2008

Ophthalmic apparatus

NIDEK KK9 citations84
US6425665B2Jul 30, 2002

Visual acuity examination apparatus

NIDEK KK17 citations83
US7771050B2Aug 10, 2010

Ophthalmic apparatus

NIDEK KK8 citations81
US6923541B2Aug 2, 2005

Optometric apparatus

NIDEK KK7 citations74
US5777344AJul 7, 1998

Ophthalmic apparatus

NIDEK KK14 citations74
US5627612AMay 6, 1997

Ophthalmic apparatus having program storing means

NIDEK KK14 citations74
US6406147B1Jun 18, 2002

Visual acuity testing apparatus

NIDEK KK11 citations73
US5929971AJul 27, 1999

Optometric apparatus, including and addition power mode, for subjectively examining a visual function of an eye

NIDEK KK14 citations73
US5859688AJan 12, 1999

Optometric apparatus

NIDEK KK7 citations73
US5485231AJan 16, 1996

Apparatus for visual acuity test having an adjustable mirror

NIDEK KK14 citations72
US5212507AMay 18, 1993

Apparatus for measuring cornea shape

NIDEK KK12 citations72
US7338172B2Mar 4, 2008

Ophthalmic apparatus

NIDEK KK4 citations63
US7438416B2Oct 21, 2008

Optometric apparatus

NIDEK KK4 citations62

JSR CORP

5 patents

TORAY INDUSTRIES

3 patents

DENSO CORP

3 patents

PANASONIC IP MAN CO LTD

3 patents

TOSHIBA MACHINE CO LTD

2 patents

MITSUBISHI ELECTRIC CORP

1 patent

FUJITSU LTD

1 patent

MURATA MANUFACTURING CO

1 patent

NIDEK CORP

1 patent

TAMADA TAKESHI

1 patent

NHK SPRING CO LTD

1 patent

KIYOKAWA YASUNORI

1 patent

FUJIKURA RUBBER LTD

1 patent

PENG YOUBAO

1 patent

IBM

1 patent

KONICA MINOLTA BUSINESS TECH

1 patent

MINOLTA CO LTD

1 patent

NIDEK COMPANY LTD

1 patent

KONICA MINOLTA INC

1 patent

Showing the top 50 of 113 patents by PatentIndex Score.