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Inventor

Toshiyuki Ishibashi

Inventor
Nagano, JP

Overview

11→
Patents
1996–2018
Patent span
Chemistry
Primary field (CPC C)

Patents· 11 as inventor

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

H01Fprimary
H01FMagnets25%
B22FWorking metallic powder19%
C21DModifying the physical structure of ferrous metals16%
C22CAlloys16%
B28DWorking stone or stone-like materials6%
C03BManufacture, shaping, or supplementary processes6%
B26FPerforating3%
B61BRailway systems3%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests3%
Y10TTechnical subjects covered by former us classification3%
PatentTitleYear
9,957,187Brittle plate processing method and brittle plate processing apparatus20189,822,029'Method for processing brittle plate, and device for processing brittle plate'20176,139,765'Magnetic powder, permanent magnet produced therefrom and process for producing them'20006,136,099'Rare earth-iron series permanent magnets and method of preparation'20005,888,416'Rare-earth bonded magnet composition, rare-earth bonded magnet and process for producing said rare-earth bonded magnet'19995,647,886'Magnetic powder, permanent magnet produced therefrom and process for producing them'19975,597,425'Rare earth cast alloy permanent magnets and methods of preparation'19975,581,180'Horizontal and vertical displacement detector of wire rope'19965,565,043'Rare earth cast alloy permanent magnets and methods of preparation'19965,560,784'Rare earth cast alloy permanent magnets and methods of preparation'19965,538,565'Rare earth cast alloy permanent magnets and methods of preparation'1996

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1996–2000Patents assigned to SEIKO EPSON CORP (9)· patent assignee history
1996Patents assigned to COSMO SYSTEM CORP (1)· patent assignee history
1996–2000Based in Nagano, JP· patent location history
1996–2000Based in Suwa, JP· patent location history
2017–2018Patents assigned to ASAHI GLASS CO LTD (2)· patent assignee history
2017–2018Based in Chiyoda-ku, JP· patent location history
2018Patents assigned to ASHI GLASS COMPANY LTD (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SEIKO EPSON CORP91996–2000
ASAHI GLASS CO LTD22017–2018
ASHI GLASS COMPANY LTD12018
COSMO SYSTEM CORP11996
Locations
LocationPatentsSpan
Nagano, JP51996–2000
Suwa, JP41996–2000
Chiyoda-ku, JP22017–2018