Inventor

Hidemi Tajima

Inventor

Tokyo, JP

Overview

13→

Patents

1976–2006

Patent span

Chemistry

Primary field (CPC C)

Patents· 13 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C03Cprimary

C03CChemical composition of glasses, glazes or vitreous enamels27%

C03BManufacture, shaping, or supplementary processes17%

H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light13%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests10%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein7%

Y02PClimate change mitigation technologies in the production or processing of goods7%

B29CShaping or joining of plastics3%

B29DProducing particular articles from plastics or from substances in a plastic state3%

B29KIndexing scheme associated with subclasses b29b, b29c or b29d, relating to moulding materials or to materials for moulds, reinforcements, fillers or preformed parts, e.g. inserts3%

B29LIndexing scheme associated with subclass b29c, relating to particular articles3%

PatentTitleYear

7,013,676'Press molding apparatus'2006 6,918,267'Press molding apparatus and press molding method'2005 6,167,727'Process for the production of polarizing glass'2001 5,886,820'Polarizing glass and production process thereof'1999 5,840,096'Process for the production of polarizing glass'1998 5,239,549'Composite slab laser medium and a laser employing the composite slab laser medium'1993 5,084,889'Laser medium for use in a slab laser'1992 5,084,888'Laser medium for use in a composite slab type laser'1992 4,871,230'Single mode phosphate laser glass fiber'1989 4,726,652'Faraday rotation single-mode optical fiber'1988 4,481,299'Optical glass'1984 4,439,530'Optical glass'1984 3,971,723'Glass for Faraday rotator element'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976Patents assigned to HOYA GLASS WORKS LTD (1)· patent assignee history

1976–2001Based in Tokyo, JP· patent location history

1984–2006Patents assigned to HOYA CORP (12)· patent assignee history

1989–2006Based in Hamura, JP· patent location history

1993Based in Nishitama-gun, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HOYA CORP	12	1984–2006
HOYA GLASS WORKS LTD	1	1976

Locations

Location	Patents	Span
Tokyo, JP	7	1976–2001
Hamura, JP	5	1989–2006
Nishitama-gun, JP	1	1993