P

Inventor

HAYASHI KAZUTAKA

JP28 patents
⚠️ This page may combine multiple inventors who share the name “HAYASHI KAZUTAKA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HOYA CORP

15 patents
US6844279B2Jan 18, 2005

Optical glass, press-molding preform and optical part

HOYA CORP66 citations94
US7491667B2Feb 17, 2009

Optical glass, precision press-molding preform, process for producing the preform, optical element and process for producing the optical element

HOYA CORP20 citations92
US6995101B2Feb 7, 2006

Optical glass and optical product using the same

HOYA CORP28 citations92
US6977232B2Dec 20, 2005

Optical glass, preform for press molding and optical part

HOYA CORP36 citations92
US7655585B2Feb 2, 2010

Optical glass, precision press-molding preform, process for the production thereof, optical element and process for the production of the element

HOYA CORP14 citations84
US7622409B2Nov 24, 2009

Optical glass, precision press-molding preform, process for production thereof, optical element and process for the production thereof

HOYA CORP13 citations84
US7560405B2Jul 14, 2009

Optical glass for precision press molding, preform for precision press molding, and process for the production thereof

HOYA CORP10 citations84
US6786064B2Sep 7, 2004

Process for the production of glass molded article

HOYA CORP13 citations84
US7576020B2Aug 18, 2009

Optical glass, precision press-molding preform, process for the production of the preform, optical element and process for the production of the optical element

HOYA CORP7 citations74
US7451620B2Nov 18, 2008

Optical glass and optical product using the same

HOYA CORP6 citations74
US7468338B2Dec 23, 2008

Optical glass, press-molding preform and optical part

HOYA CORP5 citations72
US7955998B2Jun 7, 2011

Optical glass, precision press-molding and process for the production thereof, and optical element and process for the production thereof

HOYA CORP4 citations63
US7932197B2Apr 26, 2011

Optical glass, precision press-molding preform, process for production thereof, optical element and process for the production thereof

HOYA CORP4 citations63
US8357624B2Jan 22, 2013

Lens and process for the production thereof

HOYA CORP3 citations59
US7502175B2Mar 10, 2009

Aspherical lens and process for the production thereof

HOYA CORP1 citations52

ASAHI GLASS CO LTD

3 patents

HOKURIKU ELECT IND

2 patents

WELFIDE CORP

2 patents

NAKAMURA NOBUHIRO

2 patents

KIRIN BREWERY

1 patent

Akiba shusaku

1 patent

GREEN CROSS CORP

1 patent

HAYASHI KAZUTAKA

1 patent