Inventor

Katsuji Seki

Inventor

Tokyo, JP

Overview

9→

Patents

1992–2019

Patent span

Mechanical engineering

Primary field (CPC F)

Patents· 9 as inventor

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

F16Dprimary

F16DCouplings for transmitting rotation50%

C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients11%

C23CCoating metallic material11%

C04BLime, magnesia6%

C08LCompositions of macromolecular compounds6%

H01LSemiconductor devices6%

H10FInorganic semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation6%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%

PatentTitleYear

10,461,104Friction material2019 10,060,492Friction material2018 9,656,921'Friction material composition and friction material'2017 9,541,144'Vehicular disc brake rotor and manufacturing method of vehicular disc brake rotor'2017 9,422,994'Manufacturing method of cast-iron friction member'2016 9,127,733'Friction material'2015 5,360,842'Non-asbestos friction material'1994 5,217,528'Non-asbestos friction material'1993 5,087,642'Friction material'1992

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992–2019Patents assigned to AKEBONO BRAKE IND (9)· patent assignee history

1992–1994Patents assigned to AKEBONO RES & DEV CENTRE (3)· patent assignee history

1992Based in Saitama, JP· patent location history

1993–1994Based in Washinomiya, JP· patent location history

2015Patents assigned to ITAMI ERI (1)· patent assignee history

2015Patents assigned to SEKI KATSUJI (1)· patent assignee history

2015Patents assigned to WATANABE TAKAYUKI (1)· patent assignee history

2015–2019Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
AKEBONO BRAKE IND	9	1992–2019
AKEBONO RES & DEV CENTRE	3	1992–1994
ITAMI ERI	1	2015
SEKI KATSUJIself	1	2015
WATANABE TAKAYUKI	1	2015

Locations

Location	Patents	Span
Tokyo, JP	6	2015–2019
Washinomiya, JP	2	1993–1994
Saitama, JP	1	1992