Examiner Kumiko C. Koyama

Appears inactive Last observed office action: November 2009 (196 months ago).

Examiner Kumiko C. Koyama appears to be very difficult relative to their art unit, group, tech center, and USPTO peers. Their lifetime grant ratio is 53.2%, they average 1.98 office actions per granted patent, and their rejection profile is dominated by §103.

Difficulty vs AU Very Hard

Difficulty vs Group Very Hard

Difficulty vs TC Very Hard

Difficulty vs USPTO About Average

Average OA / Grant 1.98

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Examiner Details

Observed Examiner Years: 2 years (2008-2009)
Tech Center: 2800 - Semiconductors, Electrical and Optical Systems and Components
Group: 2880 - Optics / Photocopying

Metrics

Applications Evaluated: 79
Granted Applications: 42
Non-Granted Applications: 37
Avg OA / Grant: 1.98
Last OA Observed: November 2009 (196 months ago)
Art Units Seen: 2887
Work Groups Seen: 2880 - Optics / Photocopying

Context Comparison

Scope	Examiners	Lifetime Grant Ratio	Avg OA / Grant
This Examiner	1	53.2%	1.98
Art Unit	19	62.7%	1.88
Group	164	65.8%	1.71
Tech Center	2,370	64.7%	1.69
USPTO	16,116	54.8%	1.98

Grant Timeline

Shaded region marks the last two observed years, where grant outcomes may lag due to recency.

Year	Applications	Granted	Grant Rate
No observed data before 2008; examiner may not yet have been active in the available dataset.
2008	50	27	54.0%
2009	29	15	51.7%
No observed data after 2009; examiner may have gone inactive or moved out of examining work.

42 family-cache-validated grants; 0 OA-only grant signals.

Rejection Timeline

OA #	Office Actions	§ 101 Percentage	§ 102 Percentage	§ 103 Percentage	§ 112 Percentage
1	79	0.0%	10.1%	87.3%	0.0%
2	48	0.0%	2.1%	93.8%	4.2%
3	15	13.3%	0.0%	80.0%	0.0%
4	2	50.0%	0.0%	50.0%	0.0%

§ 101 Yearly Trend

0.0%

2008

8.8%

2009

Each bar shows the share of this examiner's observed office actions in that year that included a § 101 rejection.