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Ichihara, Japan

Hiroshi Maezawa

This inventor holds 12 USPTO granted patents, plus 1 CIPO patent. Top assignee: Idemitsu Kosan Company, Limited. Active years: 1990-1997.

USPTO Granted Patents = 12

% Patents Active = 100.0

CIPO Patents = 1

Average Co-Inventor Count = 2.8

ph-index = 7

Forward Citations = 146(Granted Patents)

Location History:

Ichihara, JP (1990 - 1995)
Sodegaura, JP (1994 - 1997)

Company Filing History:

12 out of 2,283

Idemitsu Kosan Company, Limited

Years Active: 1990-1997

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12 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5693728 - Process for producing cyclic olefin based polymers (1997-12-02),

2. 5648443 - Cyclic olefin copolymers, compositions and molded articles comprising (1997-07-15),

3. 5629398 - Process for producing cyclic olefin based polymers, cyclic olefin (1997-05-13),

4. 5422407 - Process for producing styrene-based polymers and catalyst for use therein (1995-06-06),

5. 5420089 - Catalyst for the production of styrene-based polymers (1995-05-30),

6. 5344900 - Process for producing a norbornene polymer (1994-09-06),

7. 5276117 - Process for producing styrene-based polymers and catalysts for use (1994-01-04),

8. 5212232 - Process for production of styrene-based polymers (1993-05-18),

9. 5084585 - Process for preparation of aluminoxane (1992-01-28),

10. 5070160 - Process for drying aluminoxane and process for producing polymers (1991-12-03),

11. 5023222 - Catalyst for producing syndiotactic configuration styrene-based polymers (1991-06-11),

12. 4978730 - Process for producing styrene-based polymers and catalyst for use therein (1990-12-18),

Profile summary based on public USPTO records.

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